1. Home
  2. Directory
  3. District Of Columbia
  4. Washington
  5. Pathology
  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. ANN MARIE NELSON M.D.
NPI 1699759977
Pathology - Anatomic Pathology in Washington, DC

Active since December 01, 2005
6825 16TH ST NW, WASHINGTON, DC 20306(202) 782-2260(202) 782-9160 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Ann Marie Nelson M.d. NPPES

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

DR. ANN MARIE NELSON M.D. (NPI 1699759977) is an individual anatomic pathology provider in Washington, District Of Columbia, licensed in California (A36309) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1699759977
Entity TypeIndividualFemale
Primary Taxonomy207ZP0101X
Provider Legal NameDR. ANN MARIE NELSONCredential: M.D.
Location Address6825 16TH ST NWWashington, DC 20306-0003
Mailing Address1330 Floral St NwWashington, DC 20012-1766 · (202) 882-4704
Phone(202) 782-2260
Fax(202) 782-9160
Sole ProprietorNo
Enumeration DateDecember 1, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1699759977 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0101X
License✔ Licensed in CA · A36309
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
6825 16TH ST NW, Washington, DC 20306
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.

DR. ISABELL AM SESTERHENN M.D.
Pathology (Anatomic Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-2756
DR. VICTOR FRANK KALASINSKY PH.D.
Specialist/Technologist, Pathology (Chemistry)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-2835
DR. FRANCIS MICHAEL CHIRICOSTA MD
Pathology (Anatomic Pathology & Clinical Pathology)
6825 16TH ST NW, BUILDING 54, ROOM 1029
WASHINGTON, DC 20306
District of Columbia (202) 782-2260
DR. JACQUELINE ANN WIENEKE M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-2783
PETER MCEVOY
Pathology (Anatomic Pathology & Clinical Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-1827
DR. DANIEL GEORGE STRUM M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-2855
DR. DZUY TAN NGUYEN M.D.
Pathology (Forensic Pathology)
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (301) 319-0000
DR. DOUGLAS JONATHAN WEAR M.D.
Specialist
6825 16TH ST NW
WASHINGTON, DC 20306
District of Columbia (202) 782-1849

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 Ann Nelson's NPI number?

The NPI number for Ann Nelson is 1699759977. It was assigned to this individual provider in the NPPES registry on December 1, 2005.

Where is Ann Nelson located?

Ann Nelson practices at 6825 16th St NW, Washington, DC 20306. The listed phone number is (202) 782-2260.

What is Ann Nelson's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology, with taxonomy code 207ZP0101X.

When was this NPI record last updated?

The NPPES record for Ann Nelson 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 31 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.