1. Home
  2. Directory
  3. District Of Columbia
  4. Washington
  5. Obstetrics Gynecology
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN HENRY GROSSMAN III MD
NPI 1548232200
Obstetrics & Gynecology in Washington, DC

Active since February 06, 2006
2150 PENNSYLVANIA AVE NW, MEDICAL FACULTY ASSOCIATES INC, WASHINGTON, DC 20037(202) 741-2500(202) 741-2550 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. John Henry Grossman Iii Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN HENRY GROSSMAN III MD (NPI 1548232200) is an individual obstetrics & gynecology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD9135) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1548232200
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. JOHN HENRY GROSSMAN IIICredential: MD
Location Address2150 PENNSYLVANIA AVE NW, MEDICAL FACULTY ASSOCIATES INCWashington, DC 20037
Mailing Address2150 Pennsylvania Ave Nw, Ste 10-409aWashington, DC 20037 · (202) 741-3398 · Fax (202) 741-3396
Phone(202) 741-2500
Fax(202) 741-2550
Sole ProprietorNo
Enumeration DateFebruary 6, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1548232200 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in DC · MD9135
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2150 PENNSYLVANIA AVE NW, Washington, DC 20037
Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LEI DU LYNN M.D.
Internal Medicine
2150 PENNSYLVANIA AVE NW, SUITE 5-416
WASHINGTON, DC 20037
District of Columbia (202) 741-2574
NIRAJ RAJU GOWDA MD
Student in an Organized Health Care Education/Training Program
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3000
DR. ELLEN CURTIN MURPHY MD
Obstetrics & Gynecology (Obstetrics)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-2500
DR. CHRISTOPHER DAVID BADGER MD
Student in an Organized Health Care Education/Training Program
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3000
DR. MONICA MARIA MANRIQUE CASTRILLON MD
Student in an Organized Health Care Education/Training Program
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3000
DR. STEVEN JOSEPH RALSTON MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-2500
ROBERT STEVEN SIEGEL M.D.
Internal Medicine (Hematology & Oncology)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3333
JAMES DAVID KATZ M.D.
Internal Medicine (Rheumatology)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-2222

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Grossman's NPI number?

The NPI number for John Grossman is 1548232200. It was assigned to this individual provider in the NPPES registry on February 6, 2006.

Where is John Grossman located?

John Grossman practices at 2150 Pennsylvania Ave NW Medical Faculty Associates Inc, Washington, DC 20037. The listed phone number is (202) 741-2500.

What is John Grossman's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

When was this NPI record last updated?

The NPPES record for John Grossman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.