Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Penny Rathburn, DO

Individual provider Internal Medicine Physician · NPI 1063555944

Penny Rathburn, DO practises Internal Medicine in Saint Joseph, Michigan. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1998, 28 years ago. Practices with Lakeland Medical Practices, a 287-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
28
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
Licensed in
MI
In the registry since
2007
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

1234 Napier Ave
Saint Joseph, MI 49085-2112
Phone: (269) 985-4632
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 601 John St, Kalamazoo, MI 49007-5341 — (269) 341-8481

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 5101013856 (MI)

Record details

NPI number1063555944
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 14, 2007
Last updated in NPPESOctober 14, 2024
Certification dateOctober 14, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 1998 (28 years in practice)
Group practice Lakeland Medical Practices — 287 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients216
Services billed 458 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Lakeland Medical Practices

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 287 clinicians in the practice; 12 are shown here.

Other providers in Saint Joseph