NPPES file of Aug 9, 2026

Gregory Arthur May, M.D.

Interventional Cardiology Physician · Florence, SC

Gregory Arthur May, M.D. is an interventional cardiology physician with a practice address in Florence, South Carolina, and NPI 1366436990, issued on Sep 9, 2005. Check the license (South Carolina 29666, as entered in NPPES) on the South Carolina Board of Medical Examiners; 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
1366436990
Name
Gregory Arthur May
Credential
M.D.
Primary taxonomy
Interventional Cardiology Physician 207RI0011X
License numbers
29666 SC
ME61344 FL
71152 WI
Self-reported in NPPES; status is on the state search
Practice location
1594 Freedom Blvd Ste 100, Florence, SC 29505
Phone
(843) 674-4787
Enumerated
Sep 9, 2005
Record last updated
Dec 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
GP0965 SC
Medicare enrollment
Enrolled (PECOS I20070430000098); accepts Medicare assignment
Medical or professional school
University Of Miami, Lm Miller School Of Medicine, 1985
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.
Download card Updates feed

Also registered at 1594 Freedom Blvd Ste 100

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

  1. Hatem Abdallah, M.DSurgery Physician1205276052
  2. Mohamad Bourji, M.D.Cardiovascular Disease Physician1336300045
  3. Parinita Dherange, M.D.Clinical Cardiac Electrophysiology Physician1164863171
  4. Abdullah Pervaiz, M.D.Interventional Cardiology Physician1609308691

Verify Gregory Arthur May in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 29666
    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 South 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

88% more Medicare Part D claims than the average interventional cardiology physician in 2024

5,964 Medicare Part D claims for 677 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Gregory May5,964
  2. Specialty average3,179

Most prescribed

  1. Clopidogrel509 claims
  2. Isosorbide Mononitrate Er506 claims
  3. Atorvastatin Calcium474 claims
  4. Amlodipine Besylate454 claims
  5. Metoprolol Succinate412 claims
  6. Rosuvastatin Calcium370 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: $98.26

3 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory May$98.26
  2. Specialty average$7,062.29

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

Bills Medicare through one group practice

  1. Musc Community PhysiciansFlorence, SC

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

Gregory Arthur May among 122 interventional cardiology physician records in South Carolina

Gregory Arthur May, M.D. is one of 122 interventional cardiology physician records with a practice address in South Carolina. 96% 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, 86% newer
  • In a Medicare fileYes · 96% of these records are
  • In the CMS Doctors and Clinicians fileYes · 92% of these records are
  • Graduated1985 · median 2001 among the 112 with a school on file
  • Record last updated2020 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Interventional Cardiology Physician providers in South Carolina

There are 122 interventional cardiology physician records in South Carolina.

The 8 interventional cardiology physician records with the nearest ZIP codes

  1. Abdallah Kamouh, M.D.Florence, SC 295051942456132
  2. Abdullah Pervaiz, M.D.Florence, SC 295051609308691
  3. Ossama Rahman, MDFlorence, SC 295051972517860
  4. Kazim Aykent, MDFlorence, SC 295061568856482
  5. Alan Blaker, M.D.Florence, SC 295061255399069
  6. Evans Holland,, M.D.Florence, SC 295061649237900
  7. James Lee, M.D.Florence, SC 295061376501106
  8. Billy Mullinax, MDFlorence, SC 295061144789447

Common questions

What is Gregory Arthur May, M.D.'s NPI number?

Gregory Arthur May, M.D.'s National Provider Identifier (NPI) is 1366436990, issued on Sep 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Arthur May, M.D. located?

The NPPES record lists a practice address at 1594 Freedom Blvd Ste 100, Florence, SC, 29505. Phone: (843) 674-4787. Providers update this record themselves, so call before visiting.

How can I verify Gregory Arthur May, M.D.'s license?

NPPES lists South Carolina license number 29666, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory Arthur May, M.D. prescribe under Medicare Part D?

In 2024, Gregory Arthur May, M.D. had 5,964 Medicare Part D claims for 677 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. 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.