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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHN R FISCHER MD
NPI 1801841507
Pathology - Anatomic Pathology & Clinical Pathology in Pontiac, MI

Active since May 23, 2006
44405 WOODWARD AVENUE, ST JOSEPH MERCY HOSPITAL, PONTIAC, MI 48341(248) 858-3190(248) 858-3148 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John R Fischer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN R FISCHER MD (NPI 1801841507) is an individual anatomic pathology & clinical pathology provider in Pontiac, Michigan, licensed in Michigan (054499) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1801841507
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameJOHN R FISCHERCredential: MD
Location Address44405 WOODWARD AVENUE, ST JOSEPH MERCY HOSPITALPontiac, MI 48341-2985
Mailing AddressPo Box 55114Detroit, MI 48255 · (248) 858-3197 · Fax (248) 858-3148
Phone(248) 858-3190
Fax(248) 858-3148
Sole ProprietorNo
Enumeration DateMay 23, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1801841507 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in MI · 054499
Definition
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.
44405 WOODWARD AVENUE, Pontiac, MI 48341
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Other Identifiers 1

Medicaid3018161MI

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RISHAB RAJENDRA PRABHU M.D.
Student in an Organized Health Care Education/Training Program
44405 WOODWARD AVENUE, H-23
PONTIAC, MI 48341
Oakland County (248) 858-6233
VIVEK MITTAL MD
Student in an Organized Health Care Education/Training Program
44405 WOODWARD AVENUE, SUITE NUMBER; H-23
PONTIAC, MI 48341
Oakland County (248) 858-6233
DIPAM KIRAN SHAH MD
Internal Medicine
44405 WOODWARD AVENUE
PONTIAC, MI 48341
Oakland County (248) 858-6233
CLAUDIA KASSOUF DO
Obstetrics & Gynecology
44405 WOODWARD AVENUE, GRADUATE MEDICAL EDUCATION DEPT
PONTIAC, MI 48341
Oakland County (248) 858-3231
SRI BHARATHI YADLAPALLI MD
Internal Medicine (Medical Oncology)
44405 WOODWARD AVENUE, SUITE 202
PONTIAC, MI 48341
Oakland County (248) 858-2270
MR. NIHAR KANTA JENA M.D.
Internal Medicine (Cardiovascular Disease)
44405 WOODWARD AVENUE, MEDICAL EDUCATION, H-23
PONTIAC, MI 48341
Oakland County (248) 858-6233
IBRAHIM AZAR MD
Internal Medicine (Medical Oncology)
44405 WOODWARD AVENUE, SUITE 202
PONTIAC, MI 48341
Oakland County (248) 858-2270
QUANG DAT HA
Internal Medicine
44405 WOODWARD AVENUE
PONTIAC, MI 48341
Oakland County (248) 858-6233

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Fischer's NPI number?

The NPI number for John Fischer is 1801841507. It was assigned to this individual provider in the NPPES registry on May 23, 2006.

Where is John Fischer located?

John Fischer practices at 44405 Woodward Avenue St Joseph Mercy Hospital, Pontiac, MI 48341. The listed phone number is (248) 858-3190.

What is John Fischer's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

When was this NPI record last updated?

The NPPES record for John Fischer was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.