NPPES file of Aug 9, 2026

Diane M. Williams, MD

Gastroenterology Physician · Pinehurst, NC

Diane M. Williams, MD is a gastroenterology physician with a practice address in Pinehurst, North Carolina, and NPI 1598700767, issued on Jun 19, 2006. Check the license (North Carolina 38656, as entered in NPPES) on the North Carolina Medical Board; 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
1598700767
Name
Diane M. Williams
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
38656 NC
Self-reported in NPPES; status is on the state search
Practice location
15 Regional Dr, Pinehurst, NC 28374
Phone
(910) 295-9207
Enumerated
Jun 19, 2006
Record last updated
Jan 25, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(910) 235-3432
Medicare enrollment
Enrolled (PECOS I20100329000891); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 1987
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.
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Also registered at 15 Regional Dr

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

  1. Maritza Abonza, PA-CPhysician Assistant1386251981
  2. Lynsi Beers, RD, LDNRegistered Dietitian1376207639
  3. Ebonee Bethea, FNP-CFamily Nurse Practitioner1437856622
  4. Jeffrey Binney, MDInternal Medicine Physician1760424204
  5. Greg Blakely, MDInternal Medicine Physician1962442723
  6. Joy Bradford, RD, LDNRegistered Dietitian1922308360

Verify Diane M. Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 38656
    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.

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23% more Medicare Part D claims than the average gastroenterology physician in 2024

994 Medicare Part D claims for 504 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.

  1. Diane Williams994
  2. Specialty average811

Most prescribed

  1. Peg 3350-Electrolyte249 claims
  2. Esomeprazole Magnesium87 claims
  3. Pantoprazole Sodium57 claims
  4. Rabeprazole Sodium49 claims
  5. Sod Sulf-Potass Sulf-Mag Sulf47 claims
  6. Omeprazole44 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: $1,079.43

43 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diane Williams$1,079.43
  2. Specialty average$5,015.95

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. Pinehurst Medical Clinic IncPinehurst, NC

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

Diane M. Williams among 681 gastroenterology physician records in North Carolina

Diane M. Williams, MD is one of 681 gastroenterology physician records with a practice address in North Carolina. 83% 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 13% of them.

  • NPI issued2006 · 13% of these records are older, 47% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1987 · median 2002 among the 498 with a school on file
  • Record last updated2018 · 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 North 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 North Carolina

There are 681 gastroenterology physician records in North Carolina.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Vito Cirigliano, DOPinehurst, NC 283741043451966
  2. Eric Frizzell, M.D.Pinehurst, NC 283741144284803
  3. Diana Lech, MDPinehurst, NC 283741386140267
  4. Wayne Lucas, MDPinehurst, NC 283741932141223
  5. David Martin, MDPinehurst, NC 283741063456069
  6. Thomas Swantkowski, MDPinehurst, NC 283741144265109
  7. Ravikant Varanasi, MDPinehurst, NC 283741467494021
  8. Farra Wilson, D.O.Pinehurst, NC 283741659667210

Common questions

What is Diane M. Williams, MD's NPI number?

Diane M. Williams, MD's National Provider Identifier (NPI) is 1598700767, issued on Jun 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diane M. Williams, MD located?

The NPPES record lists a practice address at 15 Regional Dr, Pinehurst, NC, 28374. Phone: (910) 295-9207. Providers update this record themselves, so call before visiting.

How can I verify Diane M. Williams, MD's license?

NPPES lists North Carolina license number 38656, 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 Diane M. Williams, MD prescribe under Medicare Part D?

In 2024, Diane M. Williams, MD had 994 Medicare Part D claims for 504 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.