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

Michael Jack Rehr, DO

Individual provider Internal Medicine Physician · NPI 1770842064

Michael Jack Rehr, DO is a Hospitalist in Philadelphia, Pennsylvania. Graduated from Philadelphia College of Osteopathic Medicine in 2012, 14 years ago. Practices with Clinical Care Associates of the University of Pennsylvania Health, a 593-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
14
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
PA
In the registry since
2012
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

800 Spruce St
Philadelphia, PA 19107-6130 Not confirmed with CMS for 14 years — call before visiting
Phone: (215) 829-5410
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OT014660 (PA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence OT014660 (PA)

Record details

NPI number1770842064
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 8, 2012
Last updated in NPPESMay 8, 2012

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2012 (14 years in practice)
Group practice Clinical Care Associates Of The University Of Pennsylvania Health. — 593 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients133
Services billed 383 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Clinical Care Associates of the University of Pennsylvania Health

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 593 clinicians in the practice; 12 are shown here.

Other providers in Philadelphia