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

Muhammad Janisar, MD

Individual provider Internal Medicine Physician · NPI 1972883197

Muhammad Janisar, MD is a Hospitalist in Cambridge, Massachusetts. Qualified in 2005, 21 years ago. Practices with Emerson Practice Associates, Inc, a 247-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
21
Licensed in
MA
In the registry since
2011
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

330 Mount Auburn St Dept OF Medicine
Cambridge, MA 02138-5502 Not confirmed with CMS for 10 years — call before visiting
Phone: (617) 492-3500
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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 257858 (MA)

Record details

NPI number1972883197
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 18, 2011
Last updated in NPPESNovember 5, 2015

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Emerson Practice Associates, Inc — 247 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 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 patients412
Services billed 534 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

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. Those with a page here are linked.

Colleagues at Emerson Practice Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 247 clinicians in the practice; 12 are shown here.

Other providers in Cambridge