John R Fischer, MD

Primary specialty

Anatomic Pathology & Clinical Pathology PhysicianTaxonomy code 207ZP0102X

License

054499 Issued in MI

Practice address

44405 Woodward Avenue
St Joseph Mercy Hospital
Pontiac, MI 48341-2985

Phone

(248) 858-3190

Fax

(248) 858-3148

NPI assigned

May 23, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• St. Joseph Mercy Hospital Crna Group

  • Certified Registered Nurse Anesthetist
  • Pontiac, MI
  • NPI 1568493047
  NPD
• Northwest Pathology Consultants PC

  • Oral and Maxillofacial Pathology Dentistry
  • Pontiac, MI
  • NPI 1659082402

  Anatomic Pathology & Clinical Pathology

  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1148342400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1801841507",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 55114",
            "city": "DETROIT",
            "state": "MI",
            "postal_code": "48255",
            "telephone_number": "248-858-3197",
            "fax_number": "248-858-3148"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "44405 WOODWARD AVENUE",
            "address_2": "ST JOSEPH MERCY HOSPITAL",
            "city": "PONTIAC",
            "state": "MI",
            "postal_code": "483412985",
            "telephone_number": "248-858-3190",
            "fax_number": "248-858-3148"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FISCHER",
        "first_name": "JOHN",
        "middle_name": "R",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-23",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "MI",
            "license": "054499",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3018161",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Sheran Fernando, M.D
• Paul Ira Ferrell II, B.A
• Laura Fields
• Chelsea Fink
• Brittany Marie Fischer, DNAP, CRNA
• Erica Joy Fisher, D.O.
• Jessica Davida Fisher, MSW
• Sharthea Monique Nicole Fitzhugh, MS, LPC
• Alyssa Marie Fitzpatrick, LLMSW
• Tammy Fletcher, NP

• Anatomic Pathology & Clinical Pathology Physician in Pontiac, MI
• Providers in Pontiac, MI by specialty
• Anatomic Pathology & Clinical Pathology Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.