NPPES file of Aug 9, 2026

Carole Elizabeth Horn, MD

Internal Medicine Physician · Washington, DC

Carole Elizabeth Horn, MD is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1659445351, issued on Nov 17, 2006. Check the license (District of Columbia MD11853, as entered in NPPES) on the District of Columbia Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659445351
Name
Carole Elizabeth Horn
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD11853 DC
Self-reported in NPPES; status is on the state search
Practice location
1120 19TH Street NW, Washington, DC 20036
Phone
(202) 296-0670
Enumerated
Nov 17, 2006
Record last updated
Jun 21, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(202) 331-8924
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1120 19TH Street NW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lucy Chang, MDInternal Medicine Physician1629137872
  2. Gilbert Eisner, MDInternal Medicine Physician1023182722
  3. Richard Kaufman, MDHematology (Internal Medicine) Physician1568521714
  4. James Ramey, MDEndocrinology, Diabetes & Metabolism Physician1558435255
  5. Donald Vafides, DDSDentist1043394687

Verify Carole Elizabeth Horn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD11853
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the District of Columbia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

891 internal medicine physician records list a practice address in Washington

They are 891 of the 45,857 NPPES records with a practice address in Washington, and 901 internal medicine physician records in District of Columbia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other internal medicine physician records in District of Columbia

  1. Kathleen AbalosWashington, DC1831451764
  2. Mohamed Abdelfattah, M.DWashington, DC1164155818
  3. Diena AbdelmagedWashington, DC1598226391
  4. Ahmed Abdulameer, MDWashington, DC1295264166
  5. Fozia Abdulwahabe, M.DWashington, DC1386763373
  6. Syed Hasan Raza Abidi, MBBSWashington, DC1265127906
  7. Davis Abongwa, MDWashington, DC1780267559
  8. Randi Abramson, MDWashington, DC1841379252
  9. Khadega Abuelgasim Ahmed, M.DWashington, DC1801070297
  10. Ahmed AbughabanWashington, DC1205100518

Common questions

What is Carole Elizabeth Horn, MD's NPI number?

Carole Elizabeth Horn, MD's National Provider Identifier (NPI) is 1659445351, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carole Elizabeth Horn, MD located?

The NPPES record lists a practice address at 1120 19TH Street NW, Washington, DC, 20036. Phone: (202) 296-0670. Providers update this record themselves, so call before visiting.

How can I verify Carole Elizabeth Horn, MD's license?

NPPES lists District of Columbia license number MD11853, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.