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

Michael J Williamson, DO

Individual provider Hematology & Oncology Physician · NPI 1366581209

Michael J Williamson, DO is a Hematology/Oncology in Richmond, Indiana. Qualified in 2001, 25 years ago. Practices with Reid Physician Associates Inc, a 423-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
25
Licensed in
IN
In the registry since
2007
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1100 Reid Pkwy Reid Hospital & Health Care Services
Richmond, IN 47374-1157
Phone: (765) 935-8773
Fax: (765) 935-8774
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 02002568A (IN)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 02002568A (IN)

Record details

NPI number1366581209
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 6, 2007
Last updated in NPPESMay 19, 2021
Certification dateMay 19, 2021
Mailing address1100 Reid Pkwy, Reid Hospital & Health Care Services, Richmond, IN 47374-1157

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesMEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Reid Physician Associates Inc — 423 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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