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MARIANNA W. HORN MD
NPI 1083692057
Pediatrics - Pediatric Hematology-Oncology in Washington, DC

Active since January 09, 2006
700 2ND ST NE, WASHINGTON, DC 20002(202) 346-3000 Get Directions Write a Review

NPPES record last updated: January 11, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Marianna W. Horn Md NPPES

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

MARIANNA W. HORN MD (NPI 1083692057) is an individual pediatric hematology-oncology provider in Washington, District Of Columbia, licensed in Virginia (0101054079) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1083692057
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameMARIANNA W. HORNCredential: MD
Location Address700 2ND ST NEWashington, DC 20002-8100
Mailing Address6565 Arlington Blvd., Ste. 200Falls Church, VA 22042 · (703) 531-3627 · Fax (703) 531-1591
Phone(202) 346-3000
Sole ProprietorNo
Enumeration DateJanuary 9, 2006
Last NPPES UpdateJanuary 11, 2013
✔ NPI 1083692057 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in VA · 0101054079
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
700 2ND ST NE, Washington, DC 20002
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Other Identifiers 2

Medicare UPINC34081
Medicaid006718159VA

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. KEITH MICHAEL EGAN D.O.
Family Medicine
700 2ND ST NE
WASHINGTON, DC 20002
District of Columbia (202) 346-3000
SHERI X QI M.D.
Internal Medicine
700 2ND ST NE, KAISER PERMANENTE
WASHINGTON, DC 20002
District of Columbia (202) 346-3000
DR. CHARLES S LEVY MD
Internal Medicine (Infectious Disease)
700 2ND ST NE
WASHINGTON, DC 20002
District of Columbia (301) 618-5859
DR. PIYAPONG VONGKOVIT MD
Internal Medicine (Hematology & Oncology)
700 2ND ST NE
WASHINGTON, DC 20002
District of Columbia (202) 346-3700
DR. AINSLEY V. MACLEAN M.D.
Radiology (Diagnostic Radiology)
700 2ND ST NE, CAPITOL HILL MEDICAL CENTER
WASHINGTON, DC 20002
District of Columbia (202) 346-3000
DR. IVAN Y LIM MD
Internal Medicine (Rheumatology)
700 2ND ST NE
WASHINGTON, DC 20002
District of Columbia (202) 346-3125
ELDRIGE FLORES PINEDA M.D.
Internal Medicine (Pulmonary Disease)
700 2ND ST NE, KAISER PERMANENTE CAPITOL HILL MEDICAL CENTER
WASHINGTON, DC 20002
District of Columbia (202) 346-3000
DR. DOCK GREGORY WINSTON M.D., M.P.H.
Urology
700 2ND ST NE
WASHINGTON, DC 20002
District of Columbia (202) 346-3784

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 Marianna Horn's NPI number?

The NPI number for Marianna Horn is 1083692057. It was assigned to this individual provider in the NPPES registry on January 9, 2006.

Where is Marianna Horn located?

Marianna Horn practices at 700 2nd St NE, Washington, DC 20002. The listed phone number is (202) 346-3000.

What is Marianna Horn's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

When was this NPI record last updated?

The NPPES record for Marianna Horn was last updated on January 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.