Active NPI 1215082169 Individual Practitioner Male Practitioner

Dr. Steven Michael Vanderwerf , MD

Pathology - Anatomic Pathology & Clinical Pathology • Willmar, MN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Steven Vanderwerf, MD is a certified Pathology - Anatomic Pathology & Clinical Pathology practicing in Willmar, MN. With approximately 21 years of clinical experience since graduating from University Of Minnesota Medical School in 2005, Dr. Vanderwerf delivers high-quality medical care to the local community at 301 BECKER AVE SW.

Dr. Vanderwerf maintains professional affiliations with Minnesota Pathologists Chartered, Alomere Health and accepts Medicare assignment.

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

Practice Location & Contact Primary Location

Practice Address

301 Becker Ave Sw

Willmar, MN 562013302

Telephone 3202314500

Associated Practice Facility / Clinic

🏢 Rice Memorial Hospital Facility NPI 1619064193

Medicare Profile & Education

Medical School

University Of Minnesota Medical School

Graduation Year

2005

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

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

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

21 Yrs +2.3 yrs vs City Avg

City Avg: 18.7 Yrs

State Avg: 23.7 Yrs

Regional Practice Density

6 Specialists

Practicing in Willmar, MN (384 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

75.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Vanderwerf (21 Years) 21 Yrs

Willmar Specialty Average (18.7 Years) 18.7 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	911	436	$156.00	$35.00
88341 Special stained specimen slides to examine tissue	176	52	$72.00	$26.44
88342 Special stained specimen slides to examine tissue, initial procedure	135	119	$120.00	$32.62
84165 Protein measurement, serum	114	91	$64.00	$16.87
88312 Special stained specimen slides to identify organisms including interpretation and report	95	67	$69.00	$24.76
86334 Immunologic analysis technique on serum (immunofixation)	34	32	$51.00	$16.86
88307 Pathology examination of tissue using a microscope, moderately high complexity	34	27	$301.00	$77.45
88304 Pathology examination of tissue using a microscope, moderately low complexity	33	29	$120.00	$10.64
80503 Pathology clinical consultation for clinical problem, 5-20 minutes	32	31	$70.00	$20.92
88108 Cell examination of specimen, concentration technique	31	30	$121.00	$21.10
88360 Microscopic genetic analysis of tumor	26	12	$155.00	$39.23
88313 Special stained specimen slides to examine tissue including interpretation and report	26	13	$53.00	$11.24
85060 Blood smear interpretation by physician with written report	18	18	$88.00	$22.32
88311 Preparation of tissue for examination by removing any calcium present	16	16	$78.00	$11.26
80504 Pathology clinical consultation for moderately complex clinical problem, 21-40 minutes	15	15	$125.00	$42.80
88187 Flow cytometry technique for DNA or cell analysis	12	12	$190.00	$33.80
G0124 Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician	12	11	$94.00	$23.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	851	434	$155.98	$35.77
84165 Protein measurement, serum	128	105	$64.00	$17.20
88341 Special stained specimen slides to examine tissue	127	45	$72.00	$27.29
88342 Special stained specimen slides to examine tissue, initial procedure	101	89	$120.13	$33.65
88305 Pathology examination of tissue using a microscope, intermediate complexity	91	77	$156.00	$36.03
88312 Special stained specimen slides to identify organisms including interpretation and report	75	49	$69.28	$25.59
88360 Microscopic genetic analysis of tumor	55	14	$155.00	$40.34
88304 Pathology examination of tissue using a microscope, moderately low complexity	43	38	$120.00	$10.85
80503 Pathology clinical consultation for clinical problem, 5-20 minutes	34	34	$70.00	$21.36
86334 Immunologic analysis technique on serum (immunofixation)	33	33	$51.00	$17.20
88307 Pathology examination of tissue using a microscope, moderately high complexity	31	24	$301.00	$79.28
88313 Special stained specimen slides to examine tissue including interpretation and report	29	13	$53.00	$11.51
88108 Cell examination of specimen, concentration technique	23	23	$121.00	$21.63
88108 Cell examination of specimen, concentration technique	21	21	$121.00	$21.58
85060 Blood smear interpretation by physician with written report	17	17	$86.94	$22.92
88312 Special stained specimen slides to identify organisms including interpretation and report	17	14	$69.00	$25.62
88342 Special stained specimen slides to examine tissue, initial procedure	16	13	$120.00	$33.64
80503 Pathology clinical consultation for clinical problem, 5-20 minutes	14	14	$70.00	$26.45
84166 Protein measurement, body fluid	12	12	$64.00	$17.20
88311 Preparation of tissue for examination by removing any calcium present	11	11	$78.00	$11.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	777	358	$158.59	$36.93
88341 Special stained specimen slides to examine tissue	160	43	$77.98	$27.67
84165 Protein measurement, serum	157	130	$64.00	$17.78
88342 Special stained specimen slides to examine tissue, initial procedure	109	98	$123.17	$34.16
88305 Pathology examination of tissue using a microscope, intermediate complexity	80	71	$155.93	$36.86
88312 Special stained specimen slides to identify organisms including interpretation and report	68	41	$70.58	$25.94
88360 Microscopic genetic analysis of tumor	45	21	$157.49	$41.03
88108 Cell examination of specimen, concentration technique	43	43	$121.00	$22.15
88313 Special stained specimen slides to examine tissue including interpretation and report	38	18	$53.44	$11.84
88307 Pathology examination of tissue using a microscope, moderately high complexity	34	25	$299.15	$80.93
86334 Immunologic analysis technique on serum (immunofixation)	33	33	$51.00	$17.82
88304 Pathology examination of tissue using a microscope, moderately low complexity	29	28	$126.53	$11.14
88108 Cell examination of specimen, concentration technique	26	26	$121.00	$22.18
88311 Preparation of tissue for examination by removing any calcium present	19	19	$77.24	$12.19
85060 Blood smear interpretation by physician with written report	17	17	$84.89	$23.51
88342 Special stained specimen slides to examine tissue, initial procedure	16	14	$120.56	$34.18
88312 Special stained specimen slides to identify organisms including interpretation and report	15	13	$69.00	$25.89
85097 Bone marrow, smear interpretation	13	13	$235.00	$47.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	1,032	440	$153.83	$37.57
88341 Special stained specimen slides to examine tissue	128	42	$72.83	$28.31
84165 Protein measurement, serum	116	99	$64.00	$18.11
88342 Special stained specimen slides to examine tissue, initial procedure	107	94	$120.23	$34.86
88312 Special stained specimen slides to identify organisms including interpretation and report	63	40	$70.67	$26.74
88305 Pathology examination of tissue using a microscope, intermediate complexity	58	58	$155.10	$37.60
88360 Microscopic genetic analysis of tumor	54	29	$156.83	$41.47
88313 Special stained specimen slides to examine tissue including interpretation and report	45	22	$52.91	$12.03
88304 Pathology examination of tissue using a microscope, moderately low complexity	41	34	$109.66	$11.33
88311 Preparation of tissue for examination by removing any calcium present	31	31	$78.00	$12.39
88108 Cell examination of specimen, concentration technique	28	27	$121.00	$22.55
85060 Blood smear interpretation by physician with written report	26	26	$88.00	$23.97
88307 Pathology examination of tissue using a microscope, moderately high complexity	23	19	$299.70	$82.84
85097 Bone marrow, smear interpretation	19	19	$235.00	$48.26
88108 Cell examination of specimen, concentration technique	17	17	$121.00	$22.55
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	15	14	$256.00	$61.93
86334 Immunologic analysis technique on serum (immunofixation)	13	13	$51.00	$18.11
88342 Special stained specimen slides to examine tissue, initial procedure	12	12	$120.00	$35.15
38222 Biopsy and aspiration of bone marrow sample for diagnosis	11	11	$250.00	$75.99
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	11	11	$260.00	$83.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	666	335	$154.24	$39.01
84165 Protein measurement, serum	109	98	$64.00	$18.63
88342 Special stained specimen slides to examine tissue, initial procedure	84	76	$120.01	$36.48
88341 Special stained specimen slides to examine tissue	84	35	$72.00	$29.36
88108 Cell examination of specimen, concentration technique	56	53	$121.00	$23.20
88313 Special stained specimen slides to examine tissue including interpretation and report	55	18	$53.00	$12.33
88360 Microscopic genetic analysis of tumor	46	16	$155.39	$43.64
88305 Pathology examination of tissue using a microscope, intermediate complexity	40	30	$155.25	$39.07
88304 Pathology examination of tissue using a microscope, moderately low complexity	38	32	$114.21	$11.43
86334 Immunologic analysis technique on serum (immunofixation)	32	30	$51.00	$18.61
88307 Pathology examination of tissue using a microscope, moderately high complexity	27	17	$296.78	$85.49
88311 Preparation of tissue for examination by removing any calcium present	24	23	$78.00	$12.71
88189 Flow cytometry technique for dna or cell analysis, 16 or more markers	21	21	$260.00	$86.85
88312 Special stained specimen slides to identify organisms including interpretation and report	17	13	$69.71	$27.47
88187 Flow cytometry technique for DNA or cell analysis	15	14	$190.00	$38.15
88173 Evaluation of fine needle aspirate with interpretation and report	15	12	$230.13	$73.09
85097 Bone marrow, smear interpretation	13	13	$235.00	$49.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	867	423	$154.04	$38.79
88341 Special stained specimen slides to examine tissue	165	62	$75.27	$29.54
88342 Special stained specimen slides to examine tissue, initial procedure	133	112	$119.84	$36.27
84165 Protein measurement, serum	91	82	$64.00	$18.40
88360 Microscopic genetic analysis of tumor	77	25	$155.04	$43.64
88108 Cell examination of specimen, concentration technique	57	56	$121.00	$23.06
88312 Special stained specimen slides to identify organisms including interpretation and report	56	41	$69.16	$27.37
88307 Pathology examination of tissue using a microscope, moderately high complexity	37	25	$299.76	$85.50
88313 Special stained specimen slides to examine tissue including interpretation and report	34	14	$53.00	$12.31
88304 Pathology examination of tissue using a microscope, moderately low complexity	33	28	$118.27	$11.60
86334 Immunologic analysis technique on serum (immunofixation)	27	26	$51.00	$18.40
88311 Preparation of tissue for examination by removing any calcium present	20	17	$78.00	$12.68
88187 Flow cytometry technique for DNA or cell analysis	15	14	$190.00	$38.01
88173 Evaluation of fine needle aspirate with interpretation and report	14	11	$227.14	$72.91
84166 Protein measurement, body fluid	13	13	$64.00	$18.41
88188 Flow cytometry technique for dna or cell analysis, 9 to 15 markers	11	11	$256.00	$64.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	825	415	$154.76	$38.91
88341 Special stained specimen slides to examine tissue	153	47	$72.80	$29.27
88342 Special stained specimen slides to examine tissue, initial procedure	111	95	$119.68	$36.52
88108 Cell examination of specimen, concentration technique	87	83	$121.00	$23.26
84165 Protein measurement, serum	67	66	$64.00	$18.28
88307 Pathology examination of tissue using a microscope, moderately high complexity	52	34	$296.85	$85.84
88360 Microscopic genetic analysis of tumor	46	19	$154.48	$45.77
88304 Pathology examination of tissue using a microscope, moderately low complexity	39	36	$115.46	$11.87
88312 Special stained specimen slides to identify organisms including interpretation and report	37	30	$69.00	$27.49
88313 Special stained specimen slides to examine tissue including interpretation and report	34	20	$53.00	$12.21
88311 Preparation of tissue for examination by removing any calcium present	20	17	$78.00	$12.93
86334 Immunologic analysis technique on serum (immunofixation)	18	18	$51.00	$18.30
G0124 Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician	17	17	$91.71	$32.19
89060 Crystal identification from tissue or body fluid	13	12	$44.38	$18.25
85097 Bone marrow, smear interpretation	11	11	$235.00	$49.70

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	951	471	$152.98	$38.63
88342 Special stained specimen slides to examine tissue, initial procedure	131	123	$118.85	$36.26
88341 Special stained specimen slides to examine tissue	118	38	$73.61	$29.20
88108 Cell examination of specimen, concentration technique	90	85	$121.00	$23.23
84165 Protein measurement, serum	80	72	$64.00	$18.23
88307 Pathology examination of tissue using a microscope, moderately high complexity	69	50	$300.12	$86.05
88313 Special stained specimen slides to examine tissue including interpretation and report	58	24	$52.69	$12.18
88304 Pathology examination of tissue using a microscope, moderately low complexity	55	52	$118.89	$11.85
88312 Special stained specimen slides to identify organisms including interpretation and report	48	42	$69.26	$27.80
88360 Microscopic genetic analysis of tumor	34	13	$155.00	$56.30
88311 Preparation of tissue for examination by removing any calcium present	17	17	$75.41	$12.89
86077 Blood bank physician services for cross match and/or evaluation and written report	16	14	$166.00	$51.74
G0124 Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician	12	12	$87.17	$32.05
84166 Protein measurement, body fluid	12	12	$64.00	$18.23
85097 Bone marrow, smear interpretation	11	11	$235.00	$49.58

Medical Specialties & State Licenses

Pathology - Anatomic Pathology & Clinical Pathology Primary Specialty

NUCC Taxonomy Code: 207ZP0102X

State License MN 18369

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.

Hospital & Practice Group Affiliations

Minnesota Pathologists Chartered

301 Becker Swave, Willmar, MN 562013395

Phone: 3202354543

Alomere Health

111 17th Ave E, Alexandria, MN 563085273

Phone: 3207621511

Practice Associates & Co-Workers

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

4 Associated Practitioners

Dr. Lee Cafferty , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1255349494

Doctor of Medicine (M.D.)

Dr. Kent Donelan , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1447442181

Doctor of Medicine (M.D.)

Dr. Patricia Hoeft , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1568488096

Doctor of Medicine (M.D.)

Dr. Sharon Banister , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1699783944

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 October 30, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location October 30, 2013

Registered at 301 BECKER AVE SW, WILLMAR, MN 562013302 (Tel: 3202314500)

📍

Updated Business Mailing Address October 30, 2013

Registered at 5700 SOUTHWYCK BLVD, TOLEDO, OH 436141509 (Tel: 8002888325)

👤

Provider Name / Credentials Updated October 30, 2013

Recorded as STEVEN VANDERWERF, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 30, 2013

Pathology (License #18369 in MN)

🟢

Initial NPI Registration & Enumeration January 23, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1215082169

Entity Type:

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

Enumeration Date: January 23, 2007

Last Update: October 30, 2013

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

5700 Southwyck Blvd

Toledo, OH 436141509

Phone: 8002888325

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.