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

DR. NANCY WILLIAMS-HORAK MD
NPI 1215903166
Pediatrics - Neonatal-Perinatal Medicine in Washington, DC

Active since February 28, 2006
110 IRVING ST NW, ROOM 5B-17, WASHINGTON, DC 20010(202) 877-6527(202) 877-6565 Get Directions Write a Review

NPPES record last updated: March 15, 2012. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Nancy Williams-horak Md NPPES

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

DR. NANCY WILLIAMS-HORAK MD (NPI 1215903166) is an individual neonatal-perinatal medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (MD16650) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1215903166
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameDR. NANCY WILLIAMS-HORAKCredential: MD
Location Address110 IRVING ST NW, ROOM 5B-17Washington, DC 20010-2976
Mailing AddressPo Box 418498Boston, MA 02241-8498 · (703) 558-1544
Phone(202) 877-6527
Fax(202) 877-6565
Sole ProprietorNo
Enumeration DateFebruary 28, 2006
Last NPPES UpdateMarch 15, 2012
✔ NPI 1215903166 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in DC · MD16650
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License MD16650 (DC)
110 IRVING ST NW, Washington, DC 20010
Open in Google Maps ↗

Other Identifiers 5

Medicaid439881500DC
Medicaid006279479DC
Medicaid025611600DC
Medicare UPINE62687DC
Medicare ID-Type Unspecified017456W25DC · Trailblazer

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.

MS. JANET E JUMPER N.P.
Nurse Practitioner (Acute Care)
110 IRVING ST NW, 4B42
WASHINGTON, DC 20010
District of Columbia (202) 877-7462
EMILY JEAN SIEGEL MD
Student in an Organized Health Care Education/Training Program
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-8080
KIMBERLY SMITH
Radiology (Diagnostic Radiology)
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (301) 902-1073
MISS ORE-OLUWA ODULANA LIMA DA SILVA CRNA
Nurse Anesthetist, Certified Registered
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-7504
DR. FAY HORNG M.D.
Anesthesiology
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-7504
DR. MICHAEL B SHVARTS MD
Radiology (Diagnostic Radiology)
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-7000
DR. SCOTT THOMAS MARTYNA D.M.D.
Student in an Organized Health Care Education/Training Program
110 IRVING ST NW, DEPT. OF ORAL AND MAXILLOFACIAL SURGERY
WASHINGTON, DC 20010
District of Columbia (202) 877-7332
MS. NOOR-UL-HUDA AMER MEHDI M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
110 IRVING ST NW
WASHINGTON, DC 20010
District of Columbia (202) 877-7000

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 Nancy Williams-horak's NPI number?

The NPI number for Nancy Williams-horak is 1215903166. It was assigned to this individual provider in the NPPES registry on February 28, 2006.

Where is Nancy Williams-horak located?

Nancy Williams-horak practices at 110 Irving St NW Room 5b-17, Washington, DC 20010. The listed phone number is (202) 877-6527.

What is Nancy Williams-horak's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

When was this NPI record last updated?

The NPPES record for Nancy Williams-horak was last updated on March 15, 2012. NPI Profile syncs with the weekly NPPES data releases published by CMS.