Rena Mei, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

A178993 Issued in CA

Practice address

1001 Potrero Avenue
Building 5, 3Rd Floor, Suite 3D
San Francisco, CA 94110

Phone

(628) 206-8823

NPI assigned

Apr 9, 2019

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

Icahn School of Medicine at Mount Sinai, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of California SFGH Medical GroupGroup PAC ID 5496668410, 566 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Zuckerberg San Francisco General Hosp & Trauma Ctr Hospital, San Francisco, CA, CCN 050228

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• University of California SFGH Medical Group

  • Gastroenterology Physician
  • San Francisco, CA
  • NPI 1578538609
  Medicare reassignment Care Compare group NPD
• City & County of San Francisco

  • Clinical Medical Laboratory
  • San Francisco, CA
  • NPI 1982737524
  Medicare reassignment NPD
• City & County of San Francisco

  • Community Health/Public Health Clinical Nurse Specialist
  • San Francisco, CA
  • NPI 1609041060
  NPD
• City and County of San Francisco

  • Methadone Clinic
  • San Francisco, CA
  • NPI 1578787925
  NPD
• University of California SFGH Medical Group

  • Vascular Surgery Physician
  • San Francisco, CA
  • NPI 1033913959
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• City & County of San Francisco

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1083648810
  Care Compare affiliation
• City & County of San Francisco

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1164609962
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1554768000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749686400000",
    "number": "1023571908",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1001 POTRERO AVE, NH 3D",
            "address_2": "INTER-CAMPUS BOX #0862",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941103518",
            "telephone_number": "628-206-8823"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 POTRERO AVENUE",
            "address_2": "BUILDING 5, 3RD FLOOR, SUITE 3D",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "94110",
            "telephone_number": "628-206-8823"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "622 W 168th St",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100323720",
            "country_code": "US",
            "telephone_number": "212-305-6262",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MEI",
        "first_name": "RENA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-09",
        "last_updated": "2025-06-12",
        "certification_date": "2025-06-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "A178993",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hsaio Lan Mei
• Karen Mei, D.M.D.
• Kathy Mei, FNP
• Lillian Mei, PHARM D
• Michelle Yin Mei
• Yuh-Jang Mei
• Yunzhu Nona Mei, M.D.
• Jarrell Collin Meier, M.D.
• Kathryn Beaufort Meier, MD
• Leslie Yan Meier, PH.D.

• Gastroenterology Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Gastroenterology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 12, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.