Active NPI 1972537215 Individual Practitioner Male Practitioner

Patrick Andrew Twomey

Pathology - Anatomic Pathology & Clinical Pathology • Duluth, MN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Patrick Twomey is a certified Pathology - Anatomic Pathology & Clinical Pathology practicing in Duluth, MN. With approximately 35 years of clinical experience since graduating from University Of Minnesota Medical School in 1991, Patrick Twomey delivers high-quality medical care to the local community at 400 E 3RD ST.

Patrick Twomey is affiliated with The Duluth Clinic Ltd and accepts Medicare assignment.

Frequently performed procedures and clinical services include pathology examination of tissue using a microscope, intermediate complexity, protein measurement, serum, special stained specimen slides to examine tissue. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

400 E 3rd St

Duluth, MN 558051951

Telephone 2187868364

Associated Practice Facility / Clinic

🏢 The Duluth Clinic, Ltd Facility NPI 1245278209

Medicare Profile & Education

Medical School

University Of Minnesota Medical School

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Pathology - Anatomic Pathology & Clinical Pathology in Duluth, MN

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs +5.5 yrs vs City Avg

City Avg: 29.5 Yrs

State Avg: 23.7 Yrs

Regional Practice Density

18 Specialists

Practicing in Duluth, MN (384 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

80.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Twomey (35 Years) 35 Yrs

Duluth Specialty Average (29.5 Years) 29.5 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
88305 Pathology examination of tissue using a microscope, intermediate complexity	805	448	$211.84	$35.38
84165 Protein measurement, serum	285	220	$89.81	$16.90
88341 Special stained specimen slides to examine tissue	194	38	$159.77	$26.43
86334 Immunologic analysis technique on serum (immunofixation)	164	126	$90.55	$16.89
88112 Cell examination of specimen, selective cellular enhancement technique	75	71	$224.00	$26.13
88342 Special stained specimen slides to examine tissue, initial procedure	66	57	$179.68	$33.03
88307 Pathology examination of tissue using a microscope, moderately high complexity	59	39	$426.92	$77.40
88173 Evaluation of fine needle aspirate with interpretation and report	49	33	$364.55	$66.15
88304 Pathology examination of tissue using a microscope, moderately low complexity	40	38	$61.65	$10.53
88360 Microscopic genetic analysis of tumor	37	23	$271.00	$39.28
88331 Pathology examination of specimen during surgery, first tissue block	30	24	$321.00	$58.46
84166 Protein measurement, body fluid	30	29	$91.33	$16.91
88344 Special stained specimen slides to examine tissue	24	20	$198.96	$36.30
88363 Examination of archival tissue for genetic analysis	16	16	$125.25	$22.37
88311 Preparation of tissue for examination by removing any calcium present	12	11	$65.00	$11.29
88300 Pathology examination of tissue using a microscope, limited examination	12	12	$23.00	$4.06
88141 Pap test (Pap smear)	11	11	$156.00	$23.79
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	11	11	$504.91	$167.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	732	403	$203.28	$36.01
84165 Protein measurement, serum	237	199	$85.00	$17.23
88341 Special stained specimen slides to examine tissue	178	47	$165.37	$27.29
86334 Immunologic analysis technique on serum (immunofixation)	121	106	$85.00	$17.22
88342 Special stained specimen slides to examine tissue, initial procedure	73	65	$176.00	$33.64
88112 Cell examination of specimen, selective cellular enhancement technique	66	64	$224.00	$26.62
88307 Pathology examination of tissue using a microscope, moderately high complexity	63	42	$416.00	$79.28
88304 Pathology examination of tissue using a microscope, moderately low complexity	33	32	$60.00	$10.85
88173 Evaluation of fine needle aspirate with interpretation and report	33	24	$350.00	$67.73
84166 Protein measurement, body fluid	31	31	$85.00	$17.20
88360 Microscopic genetic analysis of tumor	30	22	$271.00	$40.39
88331 Pathology examination of specimen during surgery, first tissue block	28	18	$312.00	$59.98
88300 Pathology examination of tissue using a microscope, limited examination	24	24	$22.00	$4.13
86335 Immunologic analysis technique on body fluid, other fluids with concentration	19	19	$91.00	$17.24
88363 Examination of archival tissue for genetic analysis	16	16	$124.00	$22.41
88311 Preparation of tissue for examination by removing any calcium present	16	15	$63.00	$11.85
88141 Pap test (Pap smear)	14	14	$156.00	$22.79
88309 Pathology examination of tissue using a microscope, high complexity	13	13	$734.00	$140.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	650	370	$193.63	$36.70
84165 Protein measurement, serum	237	205	$85.00	$17.78
88341 Special stained specimen slides to examine tissue	154	42	$145.00	$27.67
86334 Immunologic analysis technique on serum (immunofixation)	128	118	$85.00	$17.77
88307 Pathology examination of tissue using a microscope, moderately high complexity	94	67	$416.00	$80.80
88342 Special stained specimen slides to examine tissue, initial procedure	81	71	$176.00	$33.84
88112 Cell examination of specimen, selective cellular enhancement technique	46	43	$224.00	$27.30
88304 Pathology examination of tissue using a microscope, moderately low complexity	45	42	$60.00	$11.14
88313 Special stained specimen slides to examine tissue including interpretation and report	38	14	$58.00	$11.83
88360 Microscopic genetic analysis of tumor	35	29	$271.00	$41.05
84166 Protein measurement, body fluid	25	23	$85.00	$17.78
88173 Evaluation of fine needle aspirate with interpretation and report	24	19	$341.00	$68.99
88312 Special stained specimen slides to identify organisms including interpretation and report	24	14	$138.00	$25.86
86335 Immunologic analysis technique on body fluid, other fluids with concentration	23	22	$91.00	$17.81
88331 Pathology examination of specimen during surgery, first tissue block	22	18	$312.00	$61.11
88311 Preparation of tissue for examination by removing any calcium present	21	18	$63.00	$12.18
88300 Pathology examination of tissue using a microscope, limited examination	18	17	$22.00	$4.26
88363 Examination of archival tissue for genetic analysis	13	13	$124.00	$22.63
88333 Pathology cytologic examination of specimen during surgery, initial site	11	11	$295.00	$60.87
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	11	11	$489.00	$174.82

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	818	430	$188.36	$37.53
84165 Protein measurement, serum	235	196	$85.00	$18.07
88341 Special stained specimen slides to examine tissue	135	44	$145.00	$28.50
86334 Immunologic analysis technique on serum (immunofixation)	135	121	$85.00	$18.05
88307 Pathology examination of tissue using a microscope, moderately high complexity	104	76	$416.00	$82.84
88342 Special stained specimen slides to examine tissue, initial procedure	78	67	$176.00	$35.15
88360 Microscopic genetic analysis of tumor	57	34	$271.00	$42.15
88304 Pathology examination of tissue using a microscope, moderately low complexity	48	45	$60.00	$11.33
88112 Cell examination of specimen, selective cellular enhancement technique	42	42	$224.00	$27.79
88331 Pathology examination of specimen during surgery, first tissue block	34	23	$312.00	$62.27
88312 Special stained specimen slides to identify organisms including interpretation and report	28	11	$138.00	$26.43
88173 Evaluation of fine needle aspirate with interpretation and report	28	20	$332.00	$70.56
88332 Pathology examination of specimen during surgery, each additional tissue block	25	13	$159.00	$30.96
88311 Preparation of tissue for examination by removing any calcium present	23	22	$63.00	$12.39
88300 Pathology examination of tissue using a microscope, limited examination	23	23	$22.00	$4.33
84166 Protein measurement, body fluid	21	19	$85.00	$18.11
88344 Special stained specimen slides to examine tissue	21	13	$193.00	$38.30
88309 Pathology examination of tissue using a microscope, high complexity	16	16	$734.00	$146.39
86335 Immunologic analysis technique on body fluid, other fluids with concentration	14	13	$91.00	$18.11
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	13	13	$489.00	$170.95
88333 Pathology cytologic examination of specimen during surgery, initial site	13	12	$295.00	$62.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	593	331	$188.50	$39.10
84165 Protein measurement, serum	253	190	$83.15	$18.64
88341 Special stained specimen slides to examine tissue	143	36	$145.00	$29.34
86334 Immunologic analysis technique on serum (immunofixation)	139	119	$83.36	$18.65
88307 Pathology examination of tissue using a microscope, moderately high complexity	78	51	$416.00	$85.96
88342 Special stained specimen slides to examine tissue, initial procedure	54	51	$176.00	$36.49
88331 Pathology examination of specimen during surgery, first tissue block	38	25	$312.00	$64.96
88360 Microscopic genetic analysis of tumor	35	22	$271.00	$43.63
88304 Pathology examination of tissue using a microscope, moderately low complexity	31	30	$59.16	$11.65
88112 Cell examination of specimen, selective cellular enhancement technique	31	30	$224.00	$28.58
88173 Evaluation of fine needle aspirate with interpretation and report	25	19	$323.16	$73.09
88311 Preparation of tissue for examination by removing any calcium present	22	21	$62.36	$12.76
88312 Special stained specimen slides to identify organisms including interpretation and report	22	17	$136.36	$27.53
88333 Pathology cytologic examination of specimen during surgery, initial site	18	18	$287.67	$64.61
84166 Protein measurement, body fluid	18	18	$83.22	$18.64
86335 Immunologic analysis technique on body fluid, other fluids with concentration	12	12	$90.25	$18.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	736	379	$178.72	$38.59
84165 Protein measurement, serum	311	247	$80.11	$18.28
86334 Immunologic analysis technique on serum (immunofixation)	165	138	$79.99	$18.28
88341 Special stained specimen slides to examine tissue	131	28	$145.00	$29.31
88342 Special stained specimen slides to examine tissue, initial procedure	84	65	$166.95	$35.91
88307 Pathology examination of tissue using a microscope, moderately high complexity	79	50	$392.80	$84.86
88331 Pathology examination of specimen during surgery, first tissue block	51	25	$296.90	$62.44
88360 Microscopic genetic analysis of tumor	45	26	$259.00	$43.31
88304 Pathology examination of tissue using a microscope, moderately low complexity	36	34	$55.00	$11.51
88112 Cell examination of specimen, selective cellular enhancement technique	32	29	$224.00	$28.61
88173 Evaluation of fine needle aspirate with interpretation and report	30	21	$315.03	$72.26
88332 Pathology examination of specimen during surgery, each additional tissue block	25	13	$148.28	$30.15
86335 Immunologic analysis technique on body fluid, other fluids with concentration	23	22	$80.96	$18.28
84166 Protein measurement, body fluid	22	20	$81.00	$18.27
88311 Preparation of tissue for examination by removing any calcium present	20	16	$61.00	$12.59
88312 Special stained specimen slides to identify organisms including interpretation and report	14	12	$126.50	$27.20
88333 Pathology cytologic examination of specimen during surgery, initial site	11	11	$280.82	$64.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	796	418	$155.01	$39.01
84165 Protein measurement, serum	279	223	$76.04	$18.28
86334 Immunologic analysis technique on serum (immunofixation)	184	155	$75.35	$18.28
88341 Special stained specimen slides to examine tissue	75	22	$145.00	$29.03
88342 Special stained specimen slides to examine tissue, initial procedure	44	37	$149.91	$35.96
88307 Pathology examination of tissue using a microscope, moderately high complexity	42	30	$344.57	$84.49
88304 Pathology examination of tissue using a microscope, moderately low complexity	40	35	$48.70	$11.86
88331 Pathology examination of specimen during surgery, first tissue block	35	22	$255.40	$65.10
86335 Immunologic analysis technique on body fluid, other fluids with concentration	33	31	$77.64	$18.29
88112 Cell examination of specimen, selective cellular enhancement technique	30	28	$224.00	$28.97
88360 Microscopic genetic analysis of tumor	26	14	$220.81	$45.77
84166 Protein measurement, body fluid	25	24	$81.00	$18.27
88173 Evaluation of fine needle aspirate with interpretation and report	21	17	$294.00	$73.32
88312 Special stained specimen slides to identify organisms including interpretation and report	20	15	$111.20	$27.54

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	887	467	$144.01	$38.80
84165 Protein measurement, serum	280	225	$74.00	$18.21
86334 Immunologic analysis technique on serum (immunofixation)	207	177	$73.00	$18.19
88341 Special stained specimen slides to examine tissue	127	32	$159.84	$29.22
88342 Special stained specimen slides to examine tissue, initial procedure	72	64	$145.00	$35.71
88307 Pathology examination of tissue using a microscope, moderately high complexity	65	45	$313.52	$86.05
88304 Pathology examination of tissue using a microscope, moderately low complexity	57	51	$45.16	$11.84
88112 Cell examination of specimen, selective cellular enhancement technique	43	37	$224.00	$28.52
88173 Evaluation of fine needle aspirate with interpretation and report	31	24	$267.97	$71.85
86335 Immunologic analysis technique on body fluid, other fluids with concentration	29	27	$74.45	$18.21
88331 Pathology examination of specimen during surgery, first tissue block	28	21	$234.29	$64.63
88360 Microscopic genetic analysis of tumor	27	14	$204.74	$54.95
88312 Special stained specimen slides to identify organisms including interpretation and report	21	11	$104.52	$27.80
84166 Protein measurement, body fluid	21	20	$79.71	$18.21
88333 Pathology cytologic examination of specimen during surgery, initial site	14	13	$237.86	$64.98

Medical Specialties & State Licenses

Pathology - Anatomic Pathology & Clinical Pathology Primary Specialty

NUCC Taxonomy Code: 207ZP0102X

State License MN 40433

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

205539200 (MN)

Medicaid State Provider ID

32585200 (WI)

Hospital & Practice Group Affiliations

The Duluth Clinic Ltd

400 E 3rd St, Duluth, MN 558051951

Phone: 2187868364

Practice Associates & Co-Workers

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

40 Associated Practitioners

Molly Dwyer , APRN, CNP

Nurse Practitioner - Psychiatric/Mental Health

NPI 1003468760

Advanced Practice Registered Nurse, Certified Nurse Practitioner

Dr. Amy Larson , MD

Hospitalist

NPI 1003565292

Doctor of Medicine (M.D.)

Kelsey O'neil , APRN, CNP

Nurse Practitioner - Family

NPI 1003677303

Advanced Practice Registered Nurse, Certified Nurse Practitioner

Annette Barker

Nurse Practitioner - Family

NPI 1003845595

Bruce Derauf

Radiology - Diagnostic Radiology

NPI 1003847385

Nizar Saleh

Internal Medicine - Cardiovascular Disease

NPI 1003857889

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active May 19, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location May 19, 2011

Registered at 400 E 3RD ST, DULUTH, MN 558051951 (Tel: 2187868364)

📍

Updated Business Mailing Address May 19, 2011

Registered at 400 E 3RD ST, DULUTH, MN 558051951 (Tel: 2187868364)

👤

Provider Name / Credentials Updated May 19, 2011

Recorded as PATRICK TWOMEY

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 19, 2011

Pathology (License #40433 in MN)

🟢

Initial NPI Registration & Enumeration July 11, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1972537215

Entity Type:

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

Enumeration Date: July 11, 2006

Last Update: May 19, 2011

Sole Proprietor: No

Update or Correct Profile

Mailing Address

400 E 3rd St

Duluth, MN 558051951

Phone: 2187868364

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.