1. Home
  2. Directory
  3. District Of Columbia
  4. Washington
  5. Internal Medicine
  6. NPI Profile

DR. ANN LB WILLIAMS MD
NPI 1265526164
Internal Medicine - Gastroenterology in Washington, DC

Active since October 03, 2006
1145 19TH ST NW, SUITE 313, WASHINGTON, DC 20036(202) 466-4619(202) 466-5773 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Ann Lb Williams Md NPPES

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

DR. ANN LB WILLIAMS MD (NPI 1265526164) is an individual gastroenterology provider in Washington, District Of Columbia, licensed in District Of Columbia (5822) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1265526164
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ANN LB WILLIAMSCredential: MD
Location Address1145 19TH ST NW, SUITE 313Washington, DC 20036
Mailing Address1145 19th St Nw, Suite 313Washington, DC 20036 · (202) 466-4619 · Fax (202) 466-5773
Phone(202) 466-4619
Fax(202) 466-5773
Sole ProprietorNo
Enumeration DateOctober 3, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1265526164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in DC · 5822
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1145 19TH ST NW, Washington, DC 20036
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINC89023
Medicare ID-Type UnspecifiedW1437693

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.

NICOLE V LANG MD
Pediatrics
1145 19TH ST NW, STE 708
WASHINGTON, DC 20036
District of Columbia (202) 955-5625
MARY MELODY ABRAHAM MD
Obstetrics & Gynecology
1145 19TH ST NW, SUITE 410
WASHINGTON, DC 20036
District of Columbia (202) 331-1740
LISA CLAIRE KAUFMAN M.D.
Internal Medicine
1145 19TH ST NW, #800
WASHINGTON, DC 20036
District of Columbia (202) 833-7051
DR. BRYAN A DEFRANCO M.D.
Radiology (Diagnostic Radiology)
1145 19TH ST NW, SUITE 205
WASHINGTON, DC 20036
District of Columbia (301) 279-4490
DR. AROUSHA JAHANGIRI D.D.S.
Dentist
1145 19TH ST NW, SUITE 512
WASHINGTON, DC 20036
District of Columbia (202) 331-1640
NANAKO BROUGHTON MD LLC
Clinic/Center (Primary Care)
1145 19TH ST NW, 510
WASHINGTON, DC 20036
District of Columbia (202) 296-7722
STEPHEN I BARSKY DDS
Dentist
1145 19TH ST NW, SUITE 512
WASHINGTON, DC 20036
District of Columbia (202) 331-1644
HUIJUNG HANNAH KIM MD
Radiology (Diagnostic Radiology)
1145 19TH ST NW, SUITE 205
WASHINGTON, DC 20036
District of Columbia (301) 279-4490

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 Williams's NPI number?

The NPI number for Ann Williams is 1265526164. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Ann Williams located?

Ann Williams practices at 1145 19th St NW Suite 313, Washington, DC 20036. The listed phone number is (202) 466-4619.

What is Ann Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Ann Williams was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.