Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

James B Fahner, MD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1245201383

James B Fahner, MD is a Pediatric Hematology & Oncology Physician in Grand Rapids, Michigan. Licensed in Michigan. Registered with an NPI since 2006.

Licensed in
MI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

100 Michigan St NE Mc 85
Grand Rapids, MI 49503-2560
Phone: (616) 391-2653
Fax: (616) 391-8873
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence 4301049486 (MI)

Record details

NPI number1245201383
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 27, 2006
Last updated in NPPESJanuary 8, 2026
Certification dateJanuary 8, 2026
Mailing address100 Michigan St Ne, Mc 85, Grand Rapids, MI 49503-2560

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