Merlene Horan, M.D.
Family Medicine Physician · Chevy Chase, MD
Merlene Horan, M.D. is a family medicine physician with a practice address in Chevy Chase, Maryland, and NPI 1659361343, issued on Oct 25, 2005. Check the license (Maryland D0100933, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Merlene Horan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- D0100933 MD
Self-reported in NPPES; status is on the state search - Practice location
- 5454 Wisconsin Ave Ste 1265, Chevy Chase, MD 20815
- Phone
- (202) 545-4700
- Enumerated
- Oct 25, 2005
- Record last updated
- Sep 3, 2025
- Fax
- (202) 223-3050
- Medicare enrollment
- Enrolled (PECOS I20250226001252); accepts Medicare assignment
- Medical or professional school
- University Of South Florida College Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,912 in Maryland → Look up another NPI →
Verify Merlene Horan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0100933Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Medstar Medical Group II LLCWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Merlene Horan among 1,912 family medicine physician records in Maryland
Merlene Horan, M.D. is one of 1,912 family medicine physician records with a practice address in Maryland. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2002 · median 2004 among the 1,141 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 family medicine physician records list a practice address in Chevy Chase
They are 20 of the 1,118 NPPES records with a practice address in Chevy Chase, and 1,912 family medicine physician records in Maryland.
All 1,912 in Maryland → Every provider in Chevy Chase → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sandra Davis, M.D.Chevy Chase, MD 208151972712917
- Joanna Delaney, D.O.Chevy Chase, MD 208151548284995
- Mona Ellis, M.D.Chevy Chase, MD 208151689601999
- Jeffrey Elting, MD MPHChevy Chase, MD 208151669585048
- Seth Garber, M.D.Chevy Chase, MD 208151366588535
- Uma Jayaraman, M.D.Chevy Chase, MD 208151184822611
- Tiffini Lucas, M.D.Chevy Chase, MD 208151871509737
- Iliana Neumann, MDChevy Chase, MD 208151508075185
Common questions
What is Merlene Horan, M.D.'s NPI number?
Merlene Horan, M.D.'s National Provider Identifier (NPI) is 1659361343, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Merlene Horan, M.D. located?
The NPPES record lists a practice address at 5454 Wisconsin Ave Ste 1265, Chevy Chase, MD, 20815. Phone: (202) 545-4700. Providers update this record themselves, so call before visiting.
How can I verify Merlene Horan, M.D.'s license?
NPPES lists Maryland license number D0100933, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. 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. Medicare files from data.cms.gov. 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.