Doctor profile · Federal record
Dr. Marcum Gillis, MD
Gastroenterology Physician (CMS: Gastroenterology) · Winston Salem, NC
- NPI 1053571620
- Accepts Medicare
- MIPS 86.5 / 100 · 2023
- 18 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
195 Kimel Park Dr Ste 200
Winston Salem, NC 271036967
(336) 768-6211
fax (336) 768-6869 - Mailing address
-
2025 Frontis Plaza Blvd, Suite 200
Winston Salem, NC 271035663
Credentials & registration
- NPI registered
- June 2008 — 18 yrs on file
- Profile last updated
- August 8, 2024
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- North Carolina #2011-01846
- Medicaid
- NC #1053571620
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1053571620. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,911
Distinct HCPCS
10
Medicare allowed
$107,894
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1745 |
Injection, infliximab, excludes biosimilar, 10 mg | 1,410 | 15 | $33 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 80 | 67 | $122 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 63 | 63 | $110 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 61 | 61 | $242 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 58 | 57 | $87 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 55 | 55 | $158 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 43 | 43 | $100 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 30 | 17 | $123 | |
96415 |
Administration of chemotherapy into vein, each additional hour | 26 | 15 | $27 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 18 | 18 | $110 |
In context: peer comparison
Among 23 peers in Winston Salem Gastroenterology Physician, average services per provider: 72. This provider delivers 27× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,816
Patients
566
Total drug cost
$168,080
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 787 | 251 | $12,703 |
| Omeprazole | Generic | 260 | 88 | $4,722 |
| Dicyclomine Hcl | Generic | 112 | 50 | $1,483 |
| Linzess (Linaclotide) | Brand | 104 | 29 | $77,878 |
| Famotidine | Generic | 93 | 26 | $1,299 |
| Sucralfate | Generic | 81 | 38 | $3,929 |
| Nortriptyline Hcl | Generic | 69 | 13 | $687 |
| Colestipol Hcl | Generic | 54 | 29 | $5,148 |
| Esomeprazole Magnesium | Generic | 50 | 12 | $2,216 |
| Lubiprostone | Generic | 42 | 14 | $13,250 |
Frequently asked questions
What is Dr. Marcum Gillis's medical specialty?
Dr. Marcum Gillis practices Gastroenterology Physician in Winston Salem, NC.
Where does Dr. Marcum Gillis practice?
Dr. Marcum Gillis practices at 195 Kimel Park Dr Ste 200, Winston Salem, NC 271036967. Office phone: 3367686211.
What is Dr. Marcum Gillis's NPI?
Dr. Marcum Gillis's National Provider Identifier (NPI) is 1053571620, issued by NPPES.
Does Dr. Marcum Gillis accept Medicare assignment?
Yes. Dr. Marcum Gillis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marcum Gillis commonly perform?
Top Medicare-reported procedures in 2023: Injection, infliximab, excludes biosimilar, 10 mg (HCPCS J1745); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.