Active NPI 1306080262 Individual Practitioner Male Practitioner

Dr. William Thomas Simonson , MD PHD

Pathology - Anatomic Pathology & Clinical Pathology • Tacoma, WA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Simonson, MD PHD is a certified Pathology - Anatomic Pathology & Clinical Pathology practicing in Tacoma, WA. With approximately 17 years of clinical experience since graduating from University Of Wisconsin School Of Medicine in 2009, Dr. Simonson delivers high-quality medical care to the local community at 315 MARTIN LUTHER KING JR WAY.

Dr. Simonson is affiliated with Cellnetix Pathology Pllc and accepts Medicare assignment.

Frequently performed procedures and clinical services include protein measurement, serum, pathology examination of tissue using a microscope, intermediate complexity, immunologic analysis technique on serum (immunofixation). Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

315 Martin Luther King Jr Way
Western Washington Pathology

Tacoma, WA 984054234

Telephone 2534031043

Associated Practice Facility / Clinic

🏢 Multicare Health System Facility NPI 1235180589

Medicare Profile & Education

Medical School

University Of Wisconsin School Of Medicine

Graduation Year

2009

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Pathology - Anatomic Pathology & Clinical Pathology in Tacoma, WA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

17 Yrs Matches City Avg

City Avg: 17.0 Yrs

State Avg: 25.2 Yrs

Regional Practice Density

25 Specialists

Practicing in Tacoma, WA (339 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

81.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Simonson (17 Years) 17 Yrs

Tacoma Specialty Average (17.0 Years) 17.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
84165 Protein measurement, serum	339	316	$111.00	$17.10
84165 Protein measurement, serum	317	251	$111.00	$17.02
88305 Pathology examination of tissue using a microscope, intermediate complexity	312	192	$222.00	$35.50
86334 Immunologic analysis technique on serum (immunofixation)	203	192	$66.00	$17.15
86334 Immunologic analysis technique on serum (immunofixation)	199	172	$66.00	$17.14
88341 Special stained specimen slides to examine tissue	139	36	$164.00	$26.85
85060 Blood smear interpretation by physician with written report	126	120	$96.00	$23.09
88360 Microscopic genetic analysis of tumor	93	57	$281.00	$39.42
84166 Protein measurement, body fluid	89	70	$68.00	$16.64
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	77	70	$347.00	$80.81
88311 Preparation of tissue for examination by removing any calcium present	71	67	$72.00	$11.39
84166 Protein measurement, body fluid	67	63	$68.00	$17.22
88305 Pathology examination of tissue using a microscope, intermediate complexity	65	46	$222.00	$35.92
88313 Special stained specimen slides to examine tissue including interpretation and report	58	44	$98.00	$11.56
88112 Cell examination of specimen, selective cellular enhancement technique	57	56	$193.00	$26.53
85097 Bone marrow, smear interpretation	51	51	$267.00	$45.64
38222 Biopsy and aspiration of bone marrow sample for diagnosis	48	48	$550.00	$71.52
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	43	39	$349.00	$58.48
88342 Special stained specimen slides to examine tissue, initial procedure	43	41	$195.00	$33.51
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	38	37	$347.00	$78.69
85390 Coagulation function screening test with interpretation and report	34	31	$106.00	$34.09
85390 Coagulation function screening test with interpretation and report	23	21	$106.00	$35.11
88360 Microscopic genetic analysis of tumor	23	12	$281.00	$39.74
88313 Special stained specimen slides to examine tissue including interpretation and report	21	17	$98.00	$11.55
88307 Pathology examination of tissue using a microscope, moderately high complexity	21	12	$469.00	$78.47
85097 Bone marrow, smear interpretation	18	18	$267.00	$69.26
88311 Preparation of tissue for examination by removing any calcium present	17	17	$72.00	$11.56
88304 Pathology examination of tissue using a microscope, moderately low complexity	16	15	$162.00	$10.90
38222 Biopsy and aspiration of bone marrow sample for diagnosis	15	15	$550.00	$176.33
83020 Hemoglobin analysis and measurement, electrophoresis	11	11	$173.00	$17.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
84165 Protein measurement, serum	947	777	$111.00	$17.20
84165 Protein measurement, serum	773	511	$111.00	$17.04
86334 Immunologic analysis technique on serum (immunofixation)	588	482	$66.00	$17.24
86334 Immunologic analysis technique on serum (immunofixation)	482	353	$66.00	$17.36
88305 Pathology examination of tissue using a microscope, intermediate complexity	460	263	$222.00	$35.95
88341 Special stained specimen slides to examine tissue	432	86	$164.00	$27.32
84166 Protein measurement, body fluid	290	267	$68.00	$17.27
85060 Blood smear interpretation by physician with written report	248	230	$96.00	$23.34
84166 Protein measurement, body fluid	217	170	$68.00	$16.71
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	197	174	$347.00	$80.68
88360 Microscopic genetic analysis of tumor	172	104	$281.00	$40.21
88305 Pathology examination of tissue using a microscope, intermediate complexity	135	87	$222.00	$35.03
88342 Special stained specimen slides to examine tissue, initial procedure	118	105	$195.00	$33.48
88311 Preparation of tissue for examination by removing any calcium present	115	109	$72.00	$11.95
85097 Bone marrow, smear interpretation	102	102	$267.00	$46.73
86335 Immunologic analysis technique on body fluid, other fluids with concentration	96	92	$78.00	$17.32
38222 Biopsy and aspiration of bone marrow sample for diagnosis	95	95	$550.00	$73.42
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	83	79	$347.00	$82.29
88341 Special stained specimen slides to examine tissue	81	15	$164.00	$27.66
88313 Special stained specimen slides to examine tissue including interpretation and report	73	66	$98.00	$11.71
85390 Coagulation function screening test with interpretation and report	69	63	$106.00	$35.53
88360 Microscopic genetic analysis of tumor	69	33	$281.00	$40.08
86335 Immunologic analysis technique on body fluid, other fluids with concentration	55	49	$78.00	$17.12
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	53	51	$349.00	$59.71
88112 Cell examination of specimen, selective cellular enhancement technique	39	37	$193.00	$26.86
85390 Coagulation function screening test with interpretation and report	39	38	$106.00	$34.63
88333 Pathology cytologic examination of specimen during surgery, initial site	37	36	$318.00	$58.88
88307 Pathology examination of tissue using a microscope, moderately high complexity	36	16	$469.00	$78.01
83020 Hemoglobin analysis and measurement, electrophoresis	36	36	$173.00	$17.11
85097 Bone marrow, smear interpretation	28	28	$267.00	$61.40
88342 Special stained specimen slides to examine tissue, initial procedure	25	24	$195.00	$34.05
88311 Preparation of tissue for examination by removing any calcium present	25	25	$72.00	$11.09
38222 Biopsy and aspiration of bone marrow sample for diagnosis	23	23	$550.00	$161.64
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	20	20	$349.00	$54.82
83020 Hemoglobin analysis and measurement, electrophoresis	19	15	$173.00	$17.43
88304 Pathology examination of tissue using a microscope, moderately low complexity	18	18	$162.00	$11.05
88313 Special stained specimen slides to examine tissue including interpretation and report	18	15	$98.00	$10.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
84165 Protein measurement, serum	867	727	$80.05	$17.90
86334 Immunologic analysis technique on serum (immunofixation)	548	484	$66.00	$17.89
84165 Protein measurement, serum	439	335	$84.75	$17.50
88305 Pathology examination of tissue using a microscope, intermediate complexity	359	239	$158.24	$36.84
84166 Protein measurement, body fluid	307	281	$68.00	$17.86
86334 Immunologic analysis technique on serum (immunofixation)	266	219	$66.00	$17.44
88341 Special stained specimen slides to examine tissue	264	61	$145.44	$26.88
88305 Pathology examination of tissue using a microscope, intermediate complexity	218	145	$143.01	$36.91
85060 Blood smear interpretation by physician with written report	141	136	$79.69	$23.76
84166 Protein measurement, body fluid	124	105	$68.00	$17.92
88342 Special stained specimen slides to examine tissue, initial procedure	85	79	$152.29	$33.89
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	77	72	$334.34	$82.97
88360 Microscopic genetic analysis of tumor	76	34	$202.32	$41.17
88360 Microscopic genetic analysis of tumor	65	37	$235.00	$41.09
88341 Special stained specimen slides to examine tissue	59	18	$140.27	$28.26
88311 Preparation of tissue for examination by removing any calcium present	59	53	$51.83	$12.28
86335 Immunologic analysis technique on body fluid, other fluids with concentration	51	51	$78.00	$17.59
85390 Coagulation function screening test with interpretation and report	51	48	$78.24	$36.09
88307 Pathology examination of tissue using a microscope, moderately high complexity	47	29	$289.77	$81.84
88112 Cell examination of specimen, selective cellular enhancement technique	45	44	$183.40	$26.24
85390 Coagulation function screening test with interpretation and report	45	44	$66.67	$34.31
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	42	42	$331.52	$83.29
85097 Bone marrow, smear interpretation	40	39	$267.00	$47.64
88313 Special stained specimen slides to examine tissue including interpretation and report	35	29	$69.66	$11.92
38222 Biopsy and aspiration of bone marrow sample for diagnosis	34	34	$444.12	$75.61
88342 Special stained specimen slides to examine tissue, initial procedure	32	30	$149.63	$33.51
G0452 Molecular pathology procedure; physician interpretation and report	32	22	$67.00	$41.90
G0452 Molecular pathology procedure; physician interpretation and report	29	18	$67.00	$45.72
88311 Preparation of tissue for examination by removing any calcium present	27	25	$48.67	$12.33
88304 Pathology examination of tissue using a microscope, moderately low complexity	23	20	$77.09	$11.29
88333 Pathology cytologic examination of specimen during surgery, initial site	23	23	$222.65	$61.05
85097 Bone marrow, smear interpretation	21	21	$267.00	$68.82
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	21	21	$299.29	$59.65
83020 Hemoglobin analysis and measurement, electrophoresis	20	20	$102.15	$18.08
88173 Evaluation of fine needle aspirate with interpretation and report	19	13	$218.32	$70.06
88112 Cell examination of specimen, selective cellular enhancement technique	18	15	$177.00	$24.54
88331 Pathology examination of specimen during surgery, first tissue block	18	15	$261.00	$61.39
38222 Biopsy and aspiration of bone marrow sample for diagnosis	17	17	$420.59	$179.83
86335 Immunologic analysis technique on body fluid, other fluids with concentration	17	16	$78.00	$17.94
88313 Special stained specimen slides to examine tissue including interpretation and report	16	14	$70.88	$11.93
88304 Pathology examination of tissue using a microscope, moderately low complexity	12	11	$84.50	$11.30
88333 Pathology cytologic examination of specimen during surgery, initial site	11	11	$224.18	$61.20

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
84165 Protein measurement, serum	724	625	$68.00	$18.10
88305 Pathology examination of tissue using a microscope, intermediate complexity	421	255	$117.00	$37.52
86334 Immunologic analysis technique on serum (immunofixation)	403	360	$66.00	$18.05
84165 Protein measurement, serum	340	259	$68.00	$17.99
88341 Special stained specimen slides to examine tissue	300	72	$129.00	$27.79
84166 Protein measurement, body fluid	227	212	$68.00	$17.94
85060 Blood smear interpretation by physician with written report	193	182	$73.00	$24.17
86334 Immunologic analysis technique on serum (immunofixation)	177	154	$66.00	$17.89
88305 Pathology examination of tissue using a microscope, intermediate complexity	144	90	$117.00	$37.89
88342 Special stained specimen slides to examine tissue, initial procedure	109	101	$129.00	$34.98
86335 Immunologic analysis technique on body fluid, other fluids with concentration	103	96	$67.00	$17.91
G0452 Molecular pathology procedure; physician interpretation and report	97	57	$67.00	$45.28
88311 Preparation of tissue for examination by removing any calcium present	80	64	$37.00	$12.37
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	80	75	$322.00	$82.53
G0452 Molecular pathology procedure; physician interpretation and report	70	51	$67.00	$46.23
88360 Microscopic genetic analysis of tumor	60	43	$166.00	$41.59
84166 Protein measurement, body fluid	59	51	$68.00	$18.38
88360 Microscopic genetic analysis of tumor	56	21	$166.00	$42.36
88112 Cell examination of specimen, selective cellular enhancement technique	49	41	$177.00	$27.94
88304 Pathology examination of tissue using a microscope, moderately low complexity	41	36	$69.00	$10.39
88341 Special stained specimen slides to examine tissue	41	15	$129.00	$29.04
85097 Bone marrow, smear interpretation	37	37	$267.00	$48.96
88307 Pathology examination of tissue using a microscope, moderately high complexity	33	24	$253.00	$80.88
88112 Cell examination of specimen, selective cellular enhancement technique	32	29	$177.00	$27.57
88342 Special stained specimen slides to examine tissue, initial procedure	29	23	$129.00	$35.59
88333 Pathology cytologic examination of specimen during surgery, initial site	28	26	$189.00	$62.56
88313 Special stained specimen slides to examine tissue including interpretation and report	27	23	$36.00	$12.17
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	21	20	$262.00	$62.63
86335 Immunologic analysis technique on body fluid, other fluids with concentration	21	20	$67.00	$18.38
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	20	20	$322.00	$85.28
83020 Hemoglobin analysis and measurement, electrophoresis	19	13	$64.00	$18.38
85390 Coagulation function screening test with interpretation and report	16	16	$47.00	$37.47
85390 Coagulation function screening test with interpretation and report	16	15	$47.00	$37.47
83020 Hemoglobin analysis and measurement, electrophoresis	16	15	$64.00	$18.38
88173 Evaluation of fine needle aspirate with interpretation and report	14	11	$214.00	$71.12
38222 Biopsy and aspiration of bone marrow sample for diagnosis	11	11	$350.00	$77.52

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
84165 Protein measurement, serum	915	782	$68.00	$19.01
86334 Immunologic analysis technique on serum (immunofixation)	620	508	$66.00	$18.99
84165 Protein measurement, serum	504	347	$68.00	$19.01
88305 Pathology examination of tissue using a microscope, intermediate complexity	448	277	$117.00	$39.11
86334 Immunologic analysis technique on serum (immunofixation)	321	228	$66.00	$19.04
88341 Special stained specimen slides to examine tissue	304	73	$129.00	$29.65
84166 Protein measurement, body fluid	241	218	$68.00	$18.94
85060 Blood smear interpretation by physician with written report	175	168	$73.00	$25.16
88305 Pathology examination of tissue using a microscope, intermediate complexity	149	107	$117.00	$39.44
86335 Immunologic analysis technique on body fluid, other fluids with concentration	119	105	$67.00	$18.78
88342 Special stained specimen slides to examine tissue, initial procedure	107	98	$129.00	$36.29
84166 Protein measurement, body fluid	99	81	$68.00	$19.09
88341 Special stained specimen slides to examine tissue	88	18	$129.00	$29.88
88311 Preparation of tissue for examination by removing any calcium present	81	70	$37.00	$12.84
88360 Microscopic genetic analysis of tumor	77	49	$166.00	$43.62
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	77	73	$322.00	$87.60
88360 Microscopic genetic analysis of tumor	58	25	$166.00	$43.12
G0452 Molecular pathology procedure; physician interpretation and report	56	40	$67.00	$19.05
85097 Bone marrow, smear interpretation	56	56	$267.00	$50.39
88112 Cell examination of specimen, selective cellular enhancement technique	51	45	$177.00	$28.93
38222 Biopsy and aspiration of bone marrow sample for diagnosis	44	44	$350.00	$79.05
88307 Pathology examination of tissue using a microscope, moderately high complexity	43	31	$253.00	$86.57
G0452 Molecular pathology procedure; physician interpretation and report	39	29	$67.00	$19.12
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	39	32	$262.00	$64.23
88333 Pathology cytologic examination of specimen during surgery, initial site	37	34	$189.00	$64.06
88313 Special stained specimen slides to examine tissue including interpretation and report	36	35	$36.00	$12.33
88342 Special stained specimen slides to examine tissue, initial procedure	31	29	$129.00	$37.16
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	31	29	$322.00	$88.77
88304 Pathology examination of tissue using a microscope, moderately low complexity	30	27	$69.00	$11.92
83020 Hemoglobin analysis and measurement, electrophoresis	27	21	$64.00	$19.13
83020 Hemoglobin analysis and measurement, electrophoresis	24	11	$64.00	$19.13
88112 Cell examination of specimen, selective cellular enhancement technique	21	20	$177.00	$29.10
86335 Immunologic analysis technique on body fluid, other fluids with concentration	19	16	$67.00	$19.10
88311 Preparation of tissue for examination by removing any calcium present	18	14	$37.00	$13.04
88173 Evaluation of fine needle aspirate with interpretation and report	16	12	$214.00	$74.17

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	656	410	$117.00	$39.02
84165 Protein measurement, serum	644	576	$68.00	$18.33
84165 Protein measurement, serum	529	362	$68.00	$18.46
86334 Immunologic analysis technique on serum (immunofixation)	321	219	$66.00	$18.43
86334 Immunologic analysis technique on serum (immunofixation)	293	266	$66.00	$18.31
88341 Special stained specimen slides to examine tissue	288	81	$129.00	$29.37
88305 Pathology examination of tissue using a microscope, intermediate complexity	216	158	$117.00	$36.99
85060 Blood smear interpretation by physician with written report	208	202	$73.00	$24.69
84166 Protein measurement, body fluid	179	172	$68.00	$18.24
84166 Protein measurement, body fluid	163	134	$68.00	$18.49
88342 Special stained specimen slides to examine tissue, initial procedure	128	119	$129.00	$36.42
88307 Pathology examination of tissue using a microscope, moderately high complexity	103	54	$253.00	$85.71
88360 Microscopic genetic analysis of tumor	102	29	$166.00	$43.73
88311 Preparation of tissue for examination by removing any calcium present	87	78	$37.00	$12.78
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	83	81	$322.00	$86.97
88360 Microscopic genetic analysis of tumor	77	47	$166.00	$43.25
88112 Cell examination of specimen, selective cellular enhancement technique	74	62	$177.00	$28.81
85097 Bone marrow, smear interpretation	65	65	$267.00	$50.40
88333 Pathology cytologic examination of specimen during surgery, initial site	60	56	$189.00	$64.73
88112 Cell examination of specimen, selective cellular enhancement technique	59	53	$177.00	$28.81
86335 Immunologic analysis technique on body fluid, other fluids with concentration	58	55	$67.00	$17.83
88304 Pathology examination of tissue using a microscope, moderately low complexity	58	53	$69.00	$11.72
86335 Immunologic analysis technique on body fluid, other fluids with concentration	56	47	$67.00	$18.20
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	55	52	$262.00	$64.97
G0452 Molecular pathology procedure; physician interpretation and report	51	40	$67.00	$18.48
38222 Biopsy and aspiration of bone marrow sample for diagnosis	51	51	$350.00	$79.45
88331 Pathology examination of specimen during surgery, first tissue block	32	25	$189.00	$64.73
G0452 Molecular pathology procedure; physician interpretation and report	31	23	$67.00	$18.50
88342 Special stained specimen slides to examine tissue, initial procedure	30	25	$129.00	$35.71
88313 Special stained specimen slides to examine tissue including interpretation and report	30	27	$36.00	$12.43
88312 Special stained specimen slides to identify organisms including interpretation and report	23	15	$82.00	$27.38
88173 Evaluation of fine needle aspirate with interpretation and report	16	13	$214.00	$72.90
85390 Coagulation function screening test with interpretation and report	14	12	$47.00	$37.67
88300 Pathology examination of tissue using a microscope, limited examination	13	12	$27.00	$4.60
88309 Pathology examination of tissue using a microscope, high complexity	12	11	$435.00	$151.51
38220 Aspiration of bone marrow sample for diagnosis	11	11	$471.00	$70.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	662	377	$117.00	$38.94
84165 Protein measurement, serum	551	491	$68.00	$18.40
84165 Protein measurement, serum	326	253	$68.00	$18.44
88341 Special stained specimen slides to examine tissue	281	68	$129.00	$29.41
86334 Immunologic analysis technique on serum (immunofixation)	279	254	$66.00	$18.45
86334 Immunologic analysis technique on serum (immunofixation)	241	180	$66.00	$18.39
88305 Pathology examination of tissue using a microscope, intermediate complexity	235	138	$117.00	$38.96
85060 Blood smear interpretation by physician with written report	145	142	$73.00	$25.17
84166 Protein measurement, body fluid	133	128	$68.00	$18.45
88342 Special stained specimen slides to examine tissue, initial procedure	104	94	$129.00	$36.08
88112 Cell examination of specimen, selective cellular enhancement technique	85	78	$177.00	$28.92
88311 Preparation of tissue for examination by removing any calcium present	82	73	$37.00	$13.05
88307 Pathology examination of tissue using a microscope, moderately high complexity	78	48	$253.00	$86.60
84166 Protein measurement, body fluid	76	61	$68.00	$18.44
88360 Microscopic genetic analysis of tumor	73	20	$166.00	$46.15
88304 Pathology examination of tissue using a microscope, moderately low complexity	68	67	$69.00	$12.05
88360 Microscopic genetic analysis of tumor	64	35	$166.00	$41.71
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	59	57	$322.00	$87.50
G0452 Molecular pathology procedure; physician interpretation and report	57	46	$67.00	$18.44
86335 Immunologic analysis technique on body fluid, other fluids with concentration	56	50	$67.00	$18.44
88112 Cell examination of specimen, selective cellular enhancement technique	54	48	$177.00	$29.11
86335 Immunologic analysis technique on body fluid, other fluids with concentration	48	39	$67.00	$18.44
85097 Bone marrow, smear interpretation	44	42	$267.00	$50.67
88331 Pathology examination of specimen during surgery, first tissue block	42	26	$189.00	$65.67
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	36	33	$262.00	$65.58
38222 Biopsy and aspiration of bone marrow sample for diagnosis	36	34	$350.00	$79.27
88333 Pathology cytologic examination of specimen during surgery, initial site	34	33	$189.00	$65.66
88342 Special stained specimen slides to examine tissue, initial procedure	27	23	$129.00	$36.90
88313 Special stained specimen slides to examine tissue including interpretation and report	26	23	$36.00	$12.21
G0452 Molecular pathology procedure; physician interpretation and report	22	16	$67.00	$18.44
88312 Special stained specimen slides to identify organisms including interpretation and report	22	15	$82.00	$27.69
88304 Pathology examination of tissue using a microscope, moderately low complexity	21	17	$69.00	$12.07
85390 Coagulation function screening test with interpretation and report	16	14	$47.00	$18.44
88173 Evaluation of fine needle aspirate with interpretation and report	14	11	$214.00	$73.83
88309 Pathology examination of tissue using a microscope, high complexity	12	12	$435.00	$153.69
88108 Cell examination of specimen, concentration technique	11	11	$86.00	$23.43
88300 Pathology examination of tissue using a microscope, limited examination	11	11	$27.00	$4.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	586	343	$117.00	$39.00
84165 Protein measurement, serum	475	444	$68.00	$18.29
84165 Protein measurement, serum	390	307	$68.00	$18.26
88341 Special stained specimen slides to examine tissue	265	68	$129.00	$29.32
86334 Immunologic analysis technique on serum (immunofixation)	234	172	$66.00	$18.22
86334 Immunologic analysis technique on serum (immunofixation)	226	216	$66.00	$18.29
88305 Pathology examination of tissue using a microscope, intermediate complexity	169	120	$117.00	$39.14
88311 Preparation of tissue for examination by removing any calcium present	112	93	$37.00	$12.83
84166 Protein measurement, body fluid	109	107	$68.00	$18.25
85060 Blood smear interpretation by physician with written report	107	105	$73.00	$24.96
88304 Pathology examination of tissue using a microscope, moderately low complexity	96	86	$69.00	$11.95
88342 Special stained specimen slides to examine tissue, initial procedure	94	91	$129.00	$36.65
88307 Pathology examination of tissue using a microscope, moderately high complexity	92	45	$253.00	$84.95
84166 Protein measurement, body fluid	89	79	$68.00	$18.32
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	88	81	$322.00	$90.60
88112 Cell examination of specimen, selective cellular enhancement technique	87	77	$177.00	$28.61
85097 Bone marrow, smear interpretation	75	73	$267.00	$50.15
38221 Needle or trocar bone marrow biopsy	72	70	$510.00	$75.26
G0364 Bone marrow aspiration performed with bone marrow biopsy through the same incision on the same date of service	66	65	$448.00	$8.76
88313 Special stained specimen slides to examine tissue including interpretation and report	55	49	$36.00	$12.30
88360 Microscopic genetic analysis of tumor	51	14	$166.00	$56.50
88360 Microscopic genetic analysis of tumor	51	36	$166.00	$53.18
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	45	44	$262.00	$73.89
86335 Immunologic analysis technique on body fluid, other fluids with concentration	44	44	$67.00	$18.32
86335 Immunologic analysis technique on body fluid, other fluids with concentration	43	34	$67.00	$18.32
88108 Cell examination of specimen, concentration technique	39	36	$86.00	$23.29
88112 Cell examination of specimen, selective cellular enhancement technique	36	29	$177.00	$28.60
88333 Pathology cytologic examination of specimen during surgery, initial site	36	29	$189.00	$61.69
88331 Pathology examination of specimen during surgery, first tissue block	24	15	$189.00	$64.93
83020 Hemoglobin analysis and measurement, electrophoresis	19	18	$64.00	$17.63
88312 Special stained specimen slides to identify organisms including interpretation and report	17	12	$82.00	$27.90
88304 Pathology examination of tissue using a microscope, moderately low complexity	17	17	$69.00	$11.96
88342 Special stained specimen slides to examine tissue, initial procedure	17	16	$129.00	$36.65
88309 Pathology examination of tissue using a microscope, high complexity	16	16	$435.00	$152.82
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	14	14	$322.00	$90.70
85390 Coagulation function screening test with interpretation and report	12	11	$47.00	$18.32

Medical Specialties & State Licenses

CMS Verified: 2026-02-27

Pathology - Anatomic Pathology & Clinical Pathology Primary Specialty

NUCC Taxonomy Code: 207ZP0102X

State License WA MD60295980

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Pathology - Anatomic Pathology & Clinical Pathology

NUCC Taxonomy Code: 207ZP0102X

State License AZ 79372

Hospital & Practice Group Affiliations

Cellnetix Pathology Pllc

1171 W Target Range Rd, Nogales, AZ 856212415

Phone: 8443444209

Cellnetix Pathology Pllc

202 N Division St, Auburn, WA 980014939

Phone: 2535452440

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

5 Associated Practitioners

Dr. Joshua Anderson , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1043605884

Doctor of Medicine (M.D.)

Dr. Samuel Insalaco , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1265570378

Doctor of Medicine (M.D.)

Dr. Rob Roth , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1487791026

Doctor of Medicine (M.D.)

Dr. George Austin , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1588702765

Doctor of Medicine (M.D.)

Dr. George Hodges , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1881732998

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active July 07, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location July 07, 2014

Registered at 315 MARTIN LUTHER KING JR WAY, WESTERN WASHINGTON PATHOLOGY, TACOMA, WA 984054234 (Tel: 2534031043)

📍

Updated Business Mailing Address July 07, 2014

Registered at 315 MARTIN LUTHER KING JR WAY, WESTERN WASHINGTON PATHOLOGY, TACOMA, WA 984054234 (Tel: 2534031043)

👤

Provider Name / Credentials Updated July 07, 2014

Recorded as WILLIAM SIMONSON, MD PHD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 07, 2014

Pathology (License #MD60295980 in WA)

🟢

Initial NPI Registration & Enumeration April 22, 2009

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

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NPI Administrative Meta

NPI Number: 1306080262

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: April 22, 2009

Last Update: February 27, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

315 Martin Luther King Jr Way, Western Washington Pathology

Tacoma, WA 984054234

Phone: 2534031043

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.