Doctor profile · Federal record
Dr. Justin Sewell, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · San Francisco, CA
- NPI 1831212158
- Accepts Medicare
- MIPS 85.5 / 100 · 2023
- 21 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1001 Potrero Ave
San Francisco, CA 941103518
(415) 206-4575
fax (415) 641-0745
Credentials & registration
- NPI registered
- April 2007 — 19 yrs on file
- Profile last updated
- April 7, 2014
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A98102
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831212158. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
250
Distinct HCPCS
8
Medicare allowed
$29,002
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 83 | 80 | $6 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 37 | 37 | $285 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 31 | 31 | $119 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 30 | 30 | $108 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 26 | 26 | $197 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 16 | 16 | $191 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 16 | 12 | $90 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 11 | 11 | $133 |
In context: peer comparison
Among 24 peers in San Francisco Gastroenterology Physician, average services per provider: 42. This provider delivers 6.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
167
Patients
80
Total drug cost
$143,999
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 57 | 55 | $1,038 |
| Pantoprazole Sodium | Generic | 30 | 12 | $846 |
| Omeprazole | Generic | 17 | 0 | $506 |
| Famotidine | Generic | 14 | 0 | $397 |
| Rinvoq (Upadacitinib) | Brand | 13 | 0 | $122,121 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 13 | 13 | $1,071 |
| Mesalamine | Generic | 12 | 0 | $17,765 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 11 | 0 | $255 |
Hospital affiliations
Frequently asked questions
What is Dr. Justin Sewell's medical specialty?
Dr. Justin Sewell practices Gastroenterology Physician in San Francisco, CA.
Where does Dr. Justin Sewell practice?
Dr. Justin Sewell practices at 1001 Potrero Ave, San Francisco, CA 941103518. Office phone: 4152064575.
What is Dr. Justin Sewell's NPI?
Dr. Justin Sewell's National Provider Identifier (NPI) is 1831212158, issued by NPPES.
Does Dr. Justin Sewell accept Medicare assignment?
Yes. Dr. Justin Sewell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Justin Sewell commonly perform?
Top Medicare-reported procedures in 2023: Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.