Doctor profile · Federal record
Dr. Sara Lewin, M.D.
Internal Medicine Physician (CMS: Gastroenterology) · San Francisco, CA
- NPI 1558627059
- Accepts Medicare
- 14 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
513 Parnassus Ave, MED Sci Room S357
San Francisco, CA 941432205
(415) 476-3134
Credentials & registration
- NPI registered
- April 2012 — 14 yrs on file
- Profile last updated
- June 26, 2015
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A127107
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558627059. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
393
Distinct HCPCS
10
Medicare allowed
$56,244
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 101 | 73 | $160 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 54 | 54 | $276 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 49 | 47 | $106 | |
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 | 48 | 47 | $6 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 29 | 29 | $168 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 23 | 23 | $150 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 17 | 17 | $204 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 17 | 11 | $89 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 16 | 16 | $146 | |
99421 |
Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes | 14 | 12 | $15 |
In context: peer comparison
Among 236 peers in this city , average services per provider: 93. This provider delivers 4.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
180
Patients
58
Total drug cost
$71,338
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 43 | 18 | $1,814 |
| Dicyclomine Hcl | Generic | 28 | 16 | $677 |
| Budesonide Dr (Budesonide) | Brand | 22 | 11 | $6,647 |
| Famotidine | Generic | 19 | 13 | $396 |
| Linzess (Linaclotide) | Brand | 17 | 0 | $16,161 |
| Pantoprazole Sodium | Generic | 15 | 0 | $457 |
| Creon (Lipase/Protease/Amylase) | Brand | 14 | 0 | $44,518 |
| Mirtazapine | Generic | 11 | 0 | $216 |
| Neomycin Sulfate | Generic | 11 | 0 | $452 |
Hospital affiliations
Frequently asked questions
What is Dr. Sara Lewin's medical specialty?
Dr. Sara Lewin practices Internal Medicine Physician in San Francisco, CA.
Where does Dr. Sara Lewin practice?
Dr. Sara Lewin practices at 513 Parnassus Ave, San Francisco, CA 941432205. Office phone: 4154763134.
What is Dr. Sara Lewin's NPI?
Dr. Sara Lewin's National Provider Identifier (NPI) is 1558627059, issued by NPPES.
Does Dr. Sara Lewin accept Medicare assignment?
Yes. Dr. Sara Lewin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sara Lewin commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.