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

David R Ziehr, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1447631874

David R Ziehr, MD is an Internal Medicine in Boston, Massachusetts. Graduated from Harvard Medical School in 2015, 11 years ago. Practices with The General Hospital Corporation, a 1,276-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
11
Trained at
Harvard Medical School
Licensed in
MA
In the registry since
2015
Specialties on file
3
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) 726-2674
Show map & directions

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

Additional practice locations (4)

  • 55 Fruit St, Boston, MA 02114-2621 — (617) 726-2674
  • 75 Francis St, Boston, MA 02115-6110 — (617) 732-5500
  • 2014 Washington St, Newton, MA 02462-1699 — (617) 243-6000
  • 789 Central Ave, Dover, NH 03820-2526 — (603) 742-5252

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 273801 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence L-263982 (MA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 273801 (MA)

Record details

NPI number1447631874
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 11, 2015
Last updated in NPPESOctober 31, 2025
Certification dateOctober 31, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2015 (11 years in practice)
Group practice The General Hospital Corporation — 1276 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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