Registry data as of Aug 27, 2026

Gregory O'Leary, MD

Family Medicine Physician · Gastonia, NC

Gregory O'Leary, MD is a family medicine physician with a practice address in Gastonia, North Carolina, and NPI 1306866579, issued on Jul 20, 2006. Check the license (North Carolina 2001-01107, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1306866579
Name
Gregory O'Leary
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
2001-01107 NC
Self-reported in NPPES; status is on the state search
Practice location
924 Cox RD, Gastonia, NC 28054
Phone
(704) 495-6334
Enumerated
Jul 20, 2006
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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Also registered at 924 Cox RD

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

  1. Katie Green, DNP, FNP-BCPrimary Care Nurse Practitioner1790492916
  2. Michael McCartney, M.D.Sports Medicine (Family Medicine) Physician1164541637
  3. Megan Okuda, PA-CPhysician Assistant1275165607
  4. Samantha Stowe, PA-CPhysician Assistant1922673094
  5. Robert Waterhouse, M.D.Urology Physician1508852104
  6. Jacqueline Watson, MDFamily Medicine Physician1922538503

Verify Gregory O'Leary in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 2001-01107
    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 North Carolina 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.

2.7 times the Medicare Part D claims of the average family medicine physician in 2024

9,655 Medicare Part D claims for 676 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 15 claims were for opioids.

  1. Gregory O'Leary9,655
  2. Specialty average3,519

Most prescribed

  1. Losartan Potassium516 claims
  2. Amlodipine Besylate385 claims
  3. Atorvastatin Calcium375 claims
  4. Levothyroxine Sodium310 claims
  5. Rosuvastatin Calcium310 claims
  6. Pantoprazole Sodium303 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.

Industry payments in 2024: $346.75

20 payments, mostly food and beverage; the largest payer was Novo Nordisk Inc. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory O'Leary$346.75
  2. Specialty average$861.30

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

One hospital or facility affiliation

  1. Tryon Medical Partners, PLLCCharlotte, NC

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

45 family medicine physician records list a Gastonia practice address

They are 45 of the 2,833 NPPES records with a Gastonia practice address, and 4,736 family medicine physician records in North Carolina.

Other family medicine physician records in North Carolina

  1. Alvin Abaqueta, M.D.Charlotte, NC1235102187
  2. Atif Abbasi, M.DGreenville, NC1972958973
  3. Jennifer Abbott, MDAsheville, NC1144312604
  4. Linda Abbott, FNPEdenton, NC1306839832
  5. Thomas Abbott, MDWinston Salem, NC1659359875
  6. Mark Abel, M.D.Rocky Mount, NC1225180961
  7. Alain Michael Abellada, M.D.Fort Bragg, NC1649582685
  8. David Abernethy, MDHudson, NC1790785798
  9. Aya Abou-Jaoude, MDAsheville, NC1568222131
  10. Seymore Abrons, M.D.Wilmington, NC1942205307

Common questions

What is Gregory O'Leary, MD's NPI number?

Gregory O'Leary, MD's National Provider Identifier (NPI) is 1306866579, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory O'Leary, MD located?

The NPPES record lists a practice address at 924 Cox RD, Gastonia, NC, 28054. Phone: (704) 495-6334. Providers update this record themselves, so call before visiting.

How can I verify Gregory O'Leary, MD's license?

NPPES lists North Carolina license number 2001-01107, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory O'Leary, MD prescribe under Medicare Part D?

In 2024, Gregory O'Leary, MD had 9,655 Medicare Part D claims for 676 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.