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

Luke James Marcus, DO

Individual provider Internal Medicine Physician · NPI 1972746105

Luke James Marcus, DO is an Internal Medicine in Pontiac, Michigan. Qualified in 2009, 17 years ago. Practices with Mercy Hospitalists, PLLC, a 26-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
17
Licensed in
MI
In the registry since
2009
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

50 N Perry St
Pontiac, MI 48342-2217
Phone: (248) 338-5516
Fax: (248) 338-5547
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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 5101018125 (MI)

Record details

NPI number1972746105
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 17, 2009
Last updated in NPPESJune 27, 2012
Mailing address50 N Perry St, Pontiac, MI 48342-2217

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Mercy Hospitalists, Pllc — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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