Doctor profile · Federal record
Dr. William Gramley, MD
Gastroenterology Physician (CMS: Gastroenterology) · Wilmington, NC
- NPI 1720072150
- Accepts Medicare
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
1520 Physicians Dr, Ste B
Wilmington, NC 284017356
(910) 662-8300 - Additional location
-
1960 S 16Th St
Wilmington, NC 284016676
(910) 763-5182 - Additional location
-
5145 S College RD
Wilmington, NC 284122207
(910) 763-5182 - Additional location
-
7420 Market St
Wilmington, NC 284119453
(910) 763-5182 - Mailing address
-
Po Box 936857
Atlanta, GA 311936857
Show 1 more location
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- May 26, 2021
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- North Carolina #9300480
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720072150. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,047
Distinct HCPCS
10
Medicare allowed
$127,473
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 100 | 99 | $69 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 90 | 90 | $238 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 82 | 82 | $175 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 77 | 76 | $122 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 73 | 73 | $150 | |
43248 |
Insertion of guide wire with dilation of esophagus using a flexible endoscope | 66 | 65 | $133 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 65 | 61 | $86 | |
36415 |
Insertion of needle into vein for collection of blood sample | 63 | 47 | $8 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 61 | 60 | $169 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 55 | 55 | $90 |
In context: peer comparison
Among 10 peers in Wilmington Gastroenterology Physician, average services per provider: 250. This provider delivers 4.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
520
Patients
107
Total drug cost
$1,034,738
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 107 | 41 | $1,761 |
| Pantoprazole Sodium | Generic | 54 | 30 | $1,069 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 53 | 0 | $1,331 |
| Entyvio (Vedolizumab) | Brand | 49 | 0 | $434,749 |
| Linzess (Linaclotide) | Brand | 39 | 0 | $28,257 |
| Famotidine | Generic | 37 | 14 | $456 |
| Esomeprazole Magnesium | Generic | 25 | 0 | $938 |
| Mercaptopurine | Generic | 24 | 0 | $1,685 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 23 | 22 | $370 |
| Dicyclomine Hcl | Generic | 22 | 0 | $720 |
Hospital affiliations
Frequently asked questions
What is Dr. William Gramley's medical specialty?
Dr. William Gramley practices Gastroenterology Physician in Wilmington, NC.
Where does Dr. William Gramley practice?
Dr. William Gramley practices at 1520 Physicians Dr, Wilmington, NC 284017356. Office phone: 9106628300.
What is Dr. William Gramley's NPI?
Dr. William Gramley's National Provider Identifier (NPI) is 1720072150, issued by NPPES.
Does Dr. William Gramley accept Medicare assignment?
Yes. Dr. William Gramley accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Gramley commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Colorectal cancer screening; colonoscopy on individual at high risk (HCPCS G0105). Source: CMS Medicare Physician & Other Practitioners file.