Mimi Lin, M.D.
NPI 1659588457 · Gastroenterology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mimi Lin, M.D. is a Gastroenterology Physician provider in San Francisco, CA (NPI 1659588457).
Provider details
- NPI number
- 1659588457
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A85457 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
802 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 110 | $102 |
| Monitoring and Recording of Esophageal Function Through Nasal Tube With Electrode91037 | 66 | $55 |
| Study of Esophagus to Assess Movement91010 | 65 | $73 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 64 | $127 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 59 | $208 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 115 | 110 |
| Omeprazole | 68 | 25 |
| Linaclotidebrand: Linzess | 48 | 18 |
| Pantoprazole Sodium | 47 | 19 |
| Metoclopramide Hcl | 31 | 11 |
| Ondansetronbrand: Ondansetron Odt | 28 | 11 |
| Pyridostigmine Bromide | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,569 across 26 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 900 Welch RdSuite 202Palo Alto, CA 94304-1805Phone: (650) 324-8878
- 899 Valencia StSan Francisco, CA 94110-1736Phone: (415) 600-1138Fax: (415) 600-1122
Registry dates
- Enumerated
- 2007-05-17
- Last updated
- 2025-11-10
- Certified
- 2025-11-10
Frequently asked questions
- What is Mimi Lin's NPI number?
- Mimi Lin's National Provider Identifier (NPI) is 1659588457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mimi Lin's specialty?
- Mimi Lin is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mimi Lin located?
- Mimi Lin's practice location on file with NPPES is 1100 Van Ness Ave Fl 5, San Francisco, CA 94109.
- What is Mimi Lin's phone number?
- The practice phone number listed in the NPPES registry for Mimi Lin is (415) 600-1000.
- Does Mimi Lin accept Medicare?
- Mimi Lin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mimi Lin's NPI active?
- Yes — Mimi Lin's NPI (1659588457) is active in the NPPES registry as of the last update on 2025-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.