NPPES file of Aug 9, 2026

Peter Brynan Leff, M.D.

Gastroenterology Physician · Hilton Head Island, SC

Peter Brynan Leff, M.D. is a gastroenterology physician with a practice address in Hilton Head Island, South Carolina, and NPI 1740510072, issued on Jan 8, 2010. Check the license (South Carolina 6597, as entered in NPPES) on the South Carolina Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1740510072
Name
Peter Brynan Leff
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
6597 SC
Self-reported in NPPES; status is on the state search
Practice location
15 Northridge Dr, Hilton Head Island, SC 29926
Phone
(843) 681-6612
Enumerated
Jan 8, 2010
Record last updated
Jan 8, 2010 (not updated in 16 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 gastroenterology physician records → All 303 in South Carolina → Look up another NPI →

Also registered at 15 Northridge Dr

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

  1. Doris Beatty, M.D.Internal Medicine Physician1679818470
  2. Kelly Bouthillet, APRN, ACNP-BCFamily Nurse Practitioner1881939031
  3. Richard Chalson, M.D.Obstetrics & Gynecology Physician1558697128
  4. Albert Palatchi, M.D.Surgery Physician1396235628
  5. Harry Pinkus, MDDiagnostic Radiology Physician1619985314
  6. Steven Wiersma, MDPublic Health & General Preventive Medicine Physician1447079249

Verify Peter Brynan Leff 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 6597    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.

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Peter Brynan Leff among 303 gastroenterology physician records in South Carolina

Peter Brynan Leff, M.D. is one of 303 gastroenterology physician records with a practice address in South Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2010, is newer than 69% of them.

  • NPI issued2010 · 69% of these records are older, 29% newer
  • In a Medicare fileNo · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 72% of these records are
  • Record last updated2010 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in South Carolina

There are 303 gastroenterology physician records in South Carolina. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 303 in South Carolina → Every provider in Hilton Head Island → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Louis Bell, MDHilton Head, SC 299261932101656
  2. Michael Gilbreath, MDHilton Head, SC 299261760513162
  3. Glenn Gwozdz, MDHilton Head, SC 299261487785879
  4. Howard Freilich, MDHardeeville, SC 299271558426361
  5. Madeline Russell, M.D.Hardeeville, SC 299271326304478
  6. Patrick Lazarczyk, DOOkatie, SC 299091437774213
  7. John Crisologo, M.D.Beaufort, SC 299061720158843
  8. Richard Stewart, D.O.Beaufort, SC 299061932279197

Common questions

What is Peter Brynan Leff, M.D.'s NPI number?

Peter Brynan Leff, M.D.'s National Provider Identifier (NPI) is 1740510072, issued on Jan 8, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Peter Brynan Leff, M.D. located?

The NPPES record lists a practice address at 15 Northridge Dr, Hilton Head Island, SC, 29926. Phone: (843) 681-6612. Providers update this record themselves, so call before visiting.

How can I verify Peter Brynan Leff, M.D.'s license?

NPPES lists South Carolina license number 6597, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.