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

Timothy J O'Rourke, MD

Individual provider Hematology & Oncology Physician · NPI 1215938303

Timothy J O'Rourke, MD is a Hematology & Oncology Physician in Grand Rapids, Michigan. Licensed in Michigan. Registered with an NPI since 2005.

Licensed in
MI
In the registry since
2005
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

145 Michigan St NE Ste 3100
Grand Rapids, MI 49503-2562
Phone: (616) 954-9800
Fax: (616) 954-2116
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 4301067043 (MI)

Record details

NPI number1215938303
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 10, 2005
Last updated in NPPESMarch 13, 2020
Certification dateMarch 13, 2020

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