Doctor profile · Federal record
Dr. John Gilliam, MD
Gastroenterology Physician · Winston Salem, NC
- NPI 1992780126
- 21 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Medical Center Blvd
Winston Salem, NC 271570001
(336) 716-2255 - Mailing address
-
Po Box 344
Winston Salem, NC 271020344
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- May 8, 2008
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- North Carolina #22918
- Medicaid (4)
- WV #186131000 · VA #6057900 · NC #8935552 · SC #Q22918
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1992780126. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
64
Distinct HCPCS
3
Medicare allowed
$6,656
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 29 | 16 | $93 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 22 | 12 | $63 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 13 | 13 | $198 |
In context: peer comparison
Among 23 peers in Winston Salem Gastroenterology Physician, average services per provider: 72. This provider delivers 0.9× the peer median.Open Payments
Industry payments received
All-time total
$242
Transactions
10
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abiomed | 7 | $149.08 | |
| Pentax of America, INC. | 3 | $93.02 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
223
Patients
0
Total drug cost
$79,374
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Alprazolam | Generic | 25 | 0 | $28 |
| Omeprazole | Generic | 24 | 0 | $717 |
| Pantoprazole Sodium | Generic | 22 | 0 | $220 |
| Azathioprine | Generic | 19 | 0 | $2,193 |
| Ondansetron Odt (Ondansetron) | Brand | 18 | 0 | $897 |
| Mesalamine | Generic | 16 | 0 | $9,653 |
| Prednisone | Generic | 16 | 0 | $125 |
| Ciprofloxacin Hcl | Generic | 15 | 0 | $84 |
| Creon (Lipase/Protease/Amylase) | Brand | 15 | 0 | $11,261 |
| Xifaxan (Rifaximin) | Brand | 15 | 0 | $52,788 |
Frequently asked questions
What is Dr. John Gilliam's medical specialty?
Dr. John Gilliam practices Gastroenterology Physician in Winston Salem, NC.
Where does Dr. John Gilliam practice?
Dr. John Gilliam practices at Medical Center Blvd, Winston Salem, NC 271570001. Office phone: 3367162255.
What is Dr. John Gilliam's NPI?
Dr. John Gilliam's National Provider Identifier (NPI) is 1992780126, issued by NPPES.
What procedures does Dr. John Gilliam commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.