Doctor profile · Federal record
Dr. Jennifer Roost, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Stanford, CA
- NPI 1790796449
- Accepts Medicare
- 26 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000 - Additional location
-
795 El Camino Real
Palo Alto, CA 943012302
(650) 853-2972
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- April 16, 2024
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A75552
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790796449. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
468
Distinct HCPCS
9
Medicare allowed
$57,025
| 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 | 143 | 141 | $6 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 110 | 110 | $151 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 52 | 52 | $290 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 38 | 38 | $120 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 36 | 33 | $156 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 35 | 35 | $111 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 26 | 24 | $218 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 15 | 15 | $136 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 13 | 13 | $211 |
In context: peer comparison
Among 18 peers in Stanford Gastroenterology Physician, average services per provider: 46. This provider delivers 10× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
268
Patients
147
Total drug cost
$19,680
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 99 | 98 | $7,782 |
| Omeprazole | Generic | 51 | 17 | $786 |
| Pantoprazole Sodium | Generic | 35 | 15 | $1,083 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 18 | 17 | $362 |
| Azathioprine | Generic | 16 | 0 | $1,067 |
| Famotidine | Generic | 15 | 0 | $249 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 12 | 0 | $705 |
| Creon (Lipase/Protease/Amylase) | Brand | 11 | 0 | $7,233 |
| Esomeprazole Magnesium | Generic | 11 | 0 | $413 |
Hospital affiliations
Frequently asked questions
What is Dr. Jennifer Roost's medical specialty?
Dr. Jennifer Roost practices Gastroenterology Physician in Stanford, CA.
Where does Dr. Jennifer Roost practice?
Dr. Jennifer Roost practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Jennifer Roost's NPI?
Dr. Jennifer Roost's National Provider Identifier (NPI) is 1790796449, issued by NPPES.
Does Dr. Jennifer Roost accept Medicare assignment?
Yes. Dr. Jennifer Roost accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jennifer Roost 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); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.