NPPES file of Aug 9, 2026

Gregory C. Mayo, D.D.S.

General Practice Dentistry · Leesburg, VA

Gregory C. Mayo, D.D.S. is a general practice dentistry with a practice address in Leesburg, Virginia, and NPI 1811096779, issued on Sep 21, 2006. Check the license with the Virginia 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
1811096779
Name
Gregory C. Mayo
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
Practice location
22 Davis Ave SW, Leesburg, VA 20175
Phone
(703) 777-3510
Enumerated
Sep 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
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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8 nearest general practice dentistry records → All 3,365 in Virginia → Look up another NPI →

Also registered at 22 Davis Ave SW

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

  1. Ryan Mayo, D.D.S.General Practice Dentistry1053410902
  2. Stephen Mayo, D.D.S.General Practice Dentistry1609974534

Verify Gregory C. Mayo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Virginia board licenses this professionCheck 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 Virginia license search

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63% fewer Medicare Part D claims than the average general practice dentistry in 2024

31 Medicare Part D claims for 19 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gregory Mayo31
  2. Specialty average83

Most prescribed

  1. Amoxicillin14 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.

Gregory C. Mayo among 3,365 general practice dentistry records in Virginia

Gregory C. Mayo, D.D.S. is one of 3,365 general practice dentistry records with a practice address in Virginia. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 70% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 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 Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 general practice dentistry records list a practice address in Leesburg

They are 39 of the 1,759 NPPES records with a practice address in Leesburg, and 3,365 general practice dentistry records in Virginia.

All 3,365 in Virginia → Every provider in Leesburg → General Practice Dentistry nationwide →

The 8 general practice dentistry records with the nearest ZIP codes

  1. Cary Birkitt, DDSLeesburg, VA 201751881830305
  2. Amanda Brown, D.D.S.Leesburg, VA 201751710188560
  3. Alice Chiu, DMDLeesburg, VA 201751285021642
  4. Brian Cochran, D.D.S.Leesburg, VA 201751063626422
  5. Walter Collazo, D.D.S.Leesburg, VA 201751780774299
  6. Arezou Daneshvar, DDSLeesburg, VA 201751326025263
  7. David Groy, D.D.SLeesburg, VA 201751932121266
  8. Edward Kean, DDSLeesburg, VA 201751710164546

Common questions

What is Gregory C. Mayo, D.D.S.'s NPI number?

Gregory C. Mayo, D.D.S.'s National Provider Identifier (NPI) is 1811096779, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory C. Mayo, D.D.S. located?

The NPPES record lists a practice address at 22 Davis Ave SW, Leesburg, VA, 20175. Phone: (703) 777-3510. Providers update this record themselves, so call before visiting.

How can I verify Gregory C. Mayo, D.D.S.'s license?

Search the Virginia board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory C. Mayo, D.D.S. prescribe under Medicare Part D?

In 2024, Gregory C. Mayo, D.D.S. had 31 Medicare Part D claims for 19 beneficiaries; the average among general practice dentistry prescribers was 83. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.