Rena Mei, MD
NPI 1023571908 · Gastroenterology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rena Mei, MD is a Gastroenterology Physician provider in San Francisco, CA (NPI 1023571908).
Provider details
- NPI number
- 1023571908
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A178993 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$119 across 1 record (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 (1)
- 622 W 168th StNew York, NY 10032-3720Phone: (212) 305-6262
Registry dates
- Enumerated
- 2019-04-09
- Last updated
- 2025-06-12
- Certified
- 2025-06-12
Frequently asked questions
- What is Rena Mei's NPI number?
- Rena Mei's National Provider Identifier (NPI) is 1023571908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rena Mei's specialty?
- Rena Mei is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Rena Mei located?
- Rena Mei's practice location on file with NPPES is 1001 Potrero Avenue, San Francisco, CA 94110.
- What is Rena Mei's phone number?
- The practice phone number listed in the NPPES registry for Rena Mei is (628) 206-8823.
- Does Rena Mei accept Medicare?
- Rena Mei is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rena Mei's NPI active?
- Yes — Rena Mei's NPI (1023571908) is active in the NPPES registry as of the last update on 2025-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.