William Gramley, MD
NPI 1720072150 · Gastroenterology Physician · Wilmington, NC
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1720072150
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9300480 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
854 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 121 | $77 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 79 | $230 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 79 | $118 |
| Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378 | 66 | $158 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 63 | $154 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 58 | 26 |
| Pantoprazole Sodium | 58 | 24 |
| Vedolizumabbrand: Entyvio | 49 | — |
| Linaclotidebrand: Linzess | 46 | 11 |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 30 | — |
| Colestipol Hcl | 29 | — |
| Dicyclomine Hcl | 28 | — |
Practice location
Mailing address
Additional practice locations (4)
- 5145 S College RdWilmington, NC 28412-2207Phone: (910) 763-5182
- 1960 S 16th StWilmington, NC 28401-6676Phone: (910) 763-5182
- 7420 Market StWilmington, NC 28411-9453Phone: (910) 763-5182
- 1520 Physicians DrWilmington, NC 28401-7356Phone: (910) 763-5182
Registry dates
- Enumerated
- 2005-08-31
- Last updated
- 2021-05-26
- Certified
- 2021-05-26
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.