Diane Williams, MD
NPI 1598700767 · Gastroenterology Physician · Pinehurst, NC
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Williams, MD is a Gastroenterology Physician provider in Pinehurst, NC (NPI 1598700767).
Provider details
- NPI number
- 1598700767
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 38656 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
813 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 132 | $230 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 93 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 86 | $120 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 59 | $9 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 58 | $108 |
| Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 249 | 240 |
| Esomeprazole Magnesium | 87 | 27 |
| Pantoprazole Sodium | 57 | 21 |
| Rabeprazole Sodium | 49 | 14 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 47 | 47 |
| Omeprazole | 44 | 16 |
| Adalimumab |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,079 across 43 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 15 Regional DrPinehurst, NC 28374-8850Phone: (910) 295-9207Fax: (910) 235-3432
Registry dates
- Enumerated
- 2006-06-19
- Last updated
- 2018-01-25
Frequently asked questions
- What is Diane Williams's NPI number?
- Diane Williams's National Provider Identifier (NPI) is 1598700767, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Williams's specialty?
- Diane Williams is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Williams located?
- Diane Williams's practice location on file with NPPES is 15 Regional Dr, Pinehurst, NC 28374-8850.
- What is Diane Williams's phone number?
- The practice phone number listed in the NPPES registry for Diane Williams is (910) 295-9207.
- Does Diane Williams accept Medicare?
- Diane Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Williams's NPI active?
- Yes — Diane Williams's NPI (1598700767) is active in the NPPES registry as of the last update on 2018-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.