NPPES file of Aug 9, 2026

Gregory Warren Martin, DDS

General Practice Dentistry · Chevy Chase, MD

Gregory Warren Martin, DDS is a general practice dentistry with a practice address in Chevy Chase, Maryland, and NPI 1295203172, issued on Nov 8, 2018. Check the license (Maryland 16622, as entered in NPPES) with the Maryland board that licenses this profession; 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
1295203172
Name
Gregory Warren Martin
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License numbers
16622 MD
1001895 DC
Self-reported in NPPES; status is on the state search
Practice location
5454 Wisconsin Ave Ste 1465, Chevy Chase, MD 20815
Phone
(301) 652-1039
Enumerated
Nov 8, 2018
Record last updated
Oct 17, 2023
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.
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Verify Gregory Warren Martin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 16622
    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
Find 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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Industry payments in 2024: $418.08

13 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Martin$418.08
  2. Specialty average$597.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Gregory Warren Martin among 2,408 general practice dentistry records in Maryland

Gregory Warren Martin, DDS is one of 2,408 general practice dentistry records with a practice address in Maryland. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.

  • NPI issued2018 · 82% of these records are older, 16% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2023 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 general practice dentistry 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 2,408 general practice dentistry records in Maryland.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Mehran Armani, D.D.SChevy Chase, MD 208151891783395
  2. Alona Bauer, DMDChevy Chase, MD 208151306027354
  3. Hilary Chung, D.M.D.Chevy Chase, MD 208151013182401
  4. Neil Cohen, DDSChevy Chase, MD 208151184762734
  5. Vincent Greco, DDSChevy Chase, MD 208151588870810
  6. Larry Greenbaum, DDSChevy Chase, MD 208151508930306
  7. David Greenberg, DMDChevy Chase, MD 208151699817627
  8. Anne Gunn, DDSChevy Chase, MD 208151659415784

Common questions

What is Gregory Warren Martin, DDS's NPI number?

Gregory Warren Martin, DDS's National Provider Identifier (NPI) is 1295203172, issued on Nov 8, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Warren Martin, DDS located?

The NPPES record lists a practice address at 5454 Wisconsin Ave Ste 1465, Chevy Chase, MD, 20815. Phone: (301) 652-1039. Providers update this record themselves, so call before visiting.

How can I verify Gregory Warren Martin, DDS's license?

NPPES lists Maryland license number 16622, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity 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.