Doctor profile · Federal record

Dr. James Niewenhuis, M.D.

Anatomic Pathology & Clinical Pathology Physician · Grand Haven, MI

  • NPI 1356367924
  • MIPS 82.7 / 100 · 2023
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1309 Sheldon RD
Grand Haven, MI 494172404
(616) 847-5257
fax (419) 866-5453
Mailing address
5700 Southwyck Blvd
Toledo, OH 436141509

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
June 16, 2014
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Michigan #4301055088
Medicaid
MI #4197568

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356367924. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
364
Distinct HCPCS
2
Medicare allowed
$14,541
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 321 180 $35
88307 Pathology examination of tissue using a microscope, moderately high complexity 43 19 $78

In context: peer comparison

Among 1 peers in this city , average services per provider: 182. This provider delivers 2.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. James Niewenhuis's medical specialty?
Dr. James Niewenhuis practices Anatomic Pathology & Clinical Pathology Physician in Grand Haven, MI.
Where does Dr. James Niewenhuis practice?
Dr. James Niewenhuis practices at 1309 Sheldon RD, Grand Haven, MI 494172404. Office phone: 6168475257.
What is Dr. James Niewenhuis's NPI?
Dr. James Niewenhuis's National Provider Identifier (NPI) is 1356367924, issued by NPPES.
What procedures does Dr. James Niewenhuis commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Pathology examination of tissue using a microscope, moderately high complexity (HCPCS 88307). Source: CMS Medicare Physician & Other Practitioners file.