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

Dr. James Michael Bartz Jr., MD

Individual provider Internal Medicine Physician · NPI 1801917372

Dr. James Michael Bartz Jr., MD is a Hospitalist in Boston, Massachusetts. Graduated from Emory University School of Medicine in 2005, 21 years ago. Practices with Mass General Brigham Medical Group Suburban Massachusetts Inc, a 532-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
21
Trained at
Emory University School of Medicine
Licensed in
MA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Partly verified

Some contact details are missing from the federal record.

Massachusetts General Hospital 55 Fruit St
Boston, MA 02114
Phone: (617) 726-2066
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Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 234624 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence L-224875 (MA)

Record details

NPI number1801917372
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2007
Last updated in NPPESDecember 9, 2009
Mailing address2014 Washington Street, Newton Weilesley Hospital, Hospitalist Office, Newton, MA 02462

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolEMORY UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Mass General Brigham Medical Group Suburban Massachusetts Inc — 532 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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