JAMES B FAHNER (MD) – Pediatric Hematology & Oncology Physician, NPI 1245201383

JAMES B FAHNER (MD) is a healthcare provider. based in Grand rapids, Michigan. specializing in Pediatric Hematology & Oncology Physician. They hold the professional credentials MD. They hold a License No. 4301049486 (MI). The NPI Number for JAMES B FAHNER (MD) is 1245201383

Main info

Male
43 Years Of Experience
Accepts Medicare Assignment
Name
JAMES B FAHNER (MD)
NPI
1245201383
Phone
Not provided
Address
100 MICHIGAN ST NE
Enumeration Date
27 January 2006
Last Update Date
8 January 2026

Doctor Profile

Medical School Name
UNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Secondary Phone
6163911774
Graduation Year
1983 (43 years ago)
PAC ID
9931196557
Group Practice PAC ID
8921904764
Professional Enrollment ID
I20040427000590

Contacts

Secure Messaging
jfahner2032@epic00.shdirect.org
FHIR Endpoint
https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness95
Years active:20State licenses:1Other names

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Provider Addresses for JAMES B FAHNER (MD)

  • Spectrum Health Butterworth Hospital, 100, Michigan Street Northeast, Grand Rapids, Kent County, Michigan, 49503, United States

    MC 85

    GRAND RAPIDS, MI 495032560

    Phone:

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 49503)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8921904764View full group profile
NameSpecialtyState
STEPHANIE F WILLIAMS (MD)
-MI
GABY A P ISKANDER (MD)
General Surgery, Critical Care (Intensivists)MI
DR. LINDA BARBARA PAULIKS (MD)
Pediatric MedicineMI
COURTNEY TAMBURELLO HILBERT (CNM)
-MI
YASSER AL KHATIB (MD)
-MI
DR. MATTHEW PETER FAHRENKOPF (M.D.)
Hand SurgeryMN
ROBERT P JR. ROBERTS (MD)
-MI
DR. DAVID R ALFONSO (M.D.)
-MI
CRYSTAL RITSEMA (M.D.)
Internal MedicineMI
LISA W MILLER (MA)
-MI

Reviews

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Frequently asked questions

What is JAMES B FAHNER (MD)'s NPI number?
JAMES B FAHNER (MD)'s NPI is 1245201383 — the number used across U.S. healthcare to identify this provider.
Is there an active status for JAMES B FAHNER (MD)?
For scheduling context, JAMES B FAHNER (MD) is shown as active in the registry.
How would a patient describe JAMES B FAHNER (MD)'s focus?
For JAMES B FAHNER (MD), the primary taxonomy reads as Pediatric Hematology & Oncology Physician. Clinical services aligned with this taxonomy classification.
Where in Michigan is JAMES B FAHNER (MD) registered?
Use Grand Rapids, Michigan as the headline location for JAMES B FAHNER (MD) here.
Can I trust this NPI listing for JAMES B FAHNER (MD)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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