Sara Lewin, M.D.
NPI 1558627059 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sara Lewin, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1558627059).
Provider details
- NPI number
- 1558627059
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A127107 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
564 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 137 | $162 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 74 | $19 |
| 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 MonitoG0500 | 72 | $6 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 71 | $275 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 54 | 23 |
| Dicyclomine Hcl | 26 | 15 |
| Famotidine | 20 | 11 |
| Colesevelam Hcl | 19 | — |
| Fluconazole | 18 | — |
| Rifaximinbrand: Xifaxan | 18 | 16 |
| Mesalamine | 13 | — |
| Mirtazapine | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-09
- Last updated
- 2015-06-26
Frequently asked questions
- What is Sara Lewin's NPI number?
- Sara Lewin's National Provider Identifier (NPI) is 1558627059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sara Lewin's specialty?
- Sara Lewin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sara Lewin located?
- Sara Lewin's practice location on file with NPPES is 513 Parnassus Ave, San Francisco, CA 94143-2205.
- What is Sara Lewin's phone number?
- The practice phone number listed in the NPPES registry for Sara Lewin is (415) 476-3134.
- Does Sara Lewin accept Medicare?
- Sara Lewin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sara Lewin's NPI active?
- Yes — Sara Lewin's NPI (1558627059) is active in the NPPES registry as of the last update on 2015-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.