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

Nikhilesh Ray Mazumder, MD

Individual provider Hospitalist Physician · NPI 1538439096

Nikhilesh Ray Mazumder, MD is a Gastroenterology in Ann Arbor, Michigan. Graduated from Johns Hopkins University School of Medicine in 2014, 12 years ago. Practices with Regents of the University of Michigan, a 3,271-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Michigan.

Years since qualifying
12
Trained at
Johns Hopkins University School of Medicine
Licensed in
IL, MI
In the registry since
2011
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone: (734) 936-4000
Show map & directions

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

Specialties & licences

Transplant Hepatology Physician (primary) Taxonomy 207RT0003X · Licence 4301504839 (MI)
Hospitalist Physician Taxonomy 208M00000X · Licence 036.143595 (IL)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 4301504839 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036.143595 (IL)

Record details

NPI number1538439096
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 30, 2011
Last updated in NPPESDecember 12, 2025
Certification dateDecember 12, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Regents Of The University Of Michigan — 3271 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations14 on file with Medicare

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