NPPES file of Aug 9, 2026

Sean Michael Dwyer, M.D.

Cardiovascular Disease Physician · Chevy Chase, MD

Sean Michael Dwyer, M.D. is a cardiovascular disease physician with a practice address in Chevy Chase, Maryland, and NPI 1346248044, issued on Jul 7, 2005. Check the license (Maryland D25818, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346248044
Name
Sean Michael Dwyer
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
D25818 MD
Self-reported in NPPES; status is on the state search
Practice location
5454 Wisconsin Ave, Chevy Chase, MD 20815
Phone
(301) 657-1682
Enumerated
Jul 7, 2005
Record last updated
Oct 26, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(301) 951-8036
Medicare enrollment
Enrolled (PECOS I20240201003738); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1976
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5454 Wisconsin Ave

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

  1. Marwa Adi, MDSpecialist1104820190
  2. Nabil Altememi, M.D.Sleep Medicine (Psychiatry & Neurology) Physician1699096529
  3. Trevor Andrews, DDSDentist1336263094
  4. Jennifer Arapian, PA-CSurgical Physician Assistant1780911362
  5. Augusto Araujo, D.M.D.Periodontics1457565384
  6. Edison Au, PTSpecialist1104922509

Verify Sean Michael Dwyer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D25818
    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 Maryland 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.

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83% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

520 Medicare Part D claims for 161 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.

  1. Sean Dwyer520
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate68 claims
  2. Eliquis50 claims
  3. Amlodipine Besylate37 claims
  4. Ezetimibe32 claims
  5. Metoprolol Tartrate30 claims
  6. Diltiazem 24hr Er (Cd)26 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Southwestern Vermont Medical Center, IncBennington, VT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sean Michael Dwyer among 613 cardiovascular disease physician records in Maryland

Sean Michael Dwyer, M.D. is one of 613 cardiovascular disease physician records with a practice address in Maryland. 76% 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, 78% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1976 · median 1997 among the 389 with a school on file
  • Record last updated2007 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 cardiovascular disease physician records list a practice address in Chevy Chase

They are 21 of the 1,118 NPPES records with a practice address in Chevy Chase, and 613 cardiovascular disease physician records in Maryland.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Deborah Barbour, M.D.Chevy Chase, MD 208151326045220
  2. William Battle, M.D.Chevy Chase, MD 208151972578748
  3. Edward Bodurian, M.D.Chevy Chase, MD 208151922042241
  4. Gary Fisher, M.D.Chevy Chase, MD 208151144296757
  5. Jack Flyer, M.D.Chevy Chase, MD 208151871569483
  6. Martin Kanovsky, M.D.Chevy Chase, MD 208151568437333
  7. Morton Kavalier, M.D.Chevy Chase, MD 208151508863440
  8. Robert Marshall, M.D.Chevy Chase, MD 208151053365189

Common questions

What is Sean Michael Dwyer, M.D.'s NPI number?

Sean Michael Dwyer, M.D.'s National Provider Identifier (NPI) is 1346248044, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Sean Michael Dwyer, M.D. located?

The NPPES record lists a practice address at 5454 Wisconsin Ave, Chevy Chase, MD, 20815. Phone: (301) 657-1682. Providers update this record themselves, so call before visiting.

How can I verify Sean Michael Dwyer, M.D.'s license?

NPPES lists Maryland license number D25818, 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.

How much does Sean Michael Dwyer, M.D. prescribe under Medicare Part D?

In 2024, Sean Michael Dwyer, M.D. had 520 Medicare Part D claims for 161 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

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.