Doctor profile · Federal record
Dr. Mark Gloger, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Rockville, MD
- NPI 1295723146
- Accepts Medicare
- 43 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9711 Medical Center Dr, Suite 308
Rockville, MD 208503323
(301) 251-1244
fax (301) 340-9360 - Mailing address
-
12510 Prosperity Dr, Suite 200
Silver Spring, MD 209041663
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- July 11, 2016
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Maryland #D0044580
- Medicaid
- MD #358651100
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1295723146. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
866
Distinct HCPCS
9
Medicare allowed
$118,540
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 188 | 188 | $95 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 175 | 161 | $134 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 168 | 168 | $60 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 106 | 106 | $258 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 103 | 103 | $176 | |
43251 |
Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare | 60 | 60 | $173 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 31 | 31 | $183 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 22 | 22 | $194 | |
46221 |
Removal of external hemorrhoids by rubber banding | 13 | 13 | $108 |
In context: peer comparison
Among 13 peers in Rockville Gastroenterology Physician, average services per provider: 222. This provider delivers 3.9× the peer median.Open Payments
Industry payments received
All-time total
$860
Transactions
44
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 12 | $205.49 | |
| Takeda Pharmaceuticals U.S.A., INC. | 6 | $117.67 | |
| Daiichi Sankyo INC. | 3 | $77.59 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 4 | $76.75 | |
| Qol Medical, LLC | 2 | $63.93 | |
| Pfizer INC. | 2 | $47.28 | |
| Genzyme Corporation | 2 | $43.39 | |
| Fresenius Kabi USA, LLC | 2 | $38.59 | |
| Celltrion USA INC. | 2 | $35.34 | |
| Intercept Pharmaceuticals, INC. | 2 | $33.39 | |
| Mauna Kea Technologies, INC. | 3 | $31.00 | |
| Janssen Biotech, INC. | 1 | $23.61 | |
| Ferring Pharmaceuticals INC. | 1 | $20.44 | |
| Regeneron Healthcare Solutions, INC. | 1 | $16.29 | |
| Ironwood Pharmaceuticals, INC | 1 | $15.89 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
711
Patients
279
Total drug cost
$43,565
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 166 | 65 | $4,324 |
| Famotidine | Generic | 135 | 54 | $2,441 |
| Omeprazole | Generic | 107 | 37 | $2,232 |
| Esomeprazole Magnesium | Generic | 73 | 26 | $5,430 |
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 46 | 44 | $7,920 |
| Lansoprazole | Generic | 36 | 12 | $958 |
| Dicyclomine Hcl | Generic | 30 | 13 | $634 |
| Colestipol Hcl | Generic | 20 | 0 | $2,239 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 18 | 0 | $586 |
| Promethazine Hcl | Generic | 16 | 0 | $337 |
Frequently asked questions
What is Dr. Mark Gloger's medical specialty?
Dr. Mark Gloger practices Gastroenterology Physician in Rockville, MD.
Where does Dr. Mark Gloger practice?
Dr. Mark Gloger practices at 9711 Medical Center Dr, Rockville, MD 208503323. Office phone: 3012511244.
What is Dr. Mark Gloger's NPI?
Dr. Mark Gloger's National Provider Identifier (NPI) is 1295723146, issued by NPPES.
Does Dr. Mark Gloger accept Medicare assignment?
Yes. Dr. Mark Gloger accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Gloger commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.