Joanna Ai Wan Tan, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A109279 Issued in CA

Practice address

2801 Atlantic Ave
Long Beach, CA 90806-1701

Phone

(714) 436-4444

NPI assigned

Apr 16, 2010

Last updated

Jan 12, 2026By the provider in NPPES

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: jtan263371@oc.providencedirect.org

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

• Healthcare Partners Affiliates Medical Group

  dba Optum

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1659312593
  Medicare reassignment NPD
• Healthcare Partners Affiliates Medical Group

  dba Optum

  • Durable Medical Equipment & Medical Supplies
  • Murrieta, CA
  • NPI 1760057269
  NPD
• Providence Medical Institute

  dba Providence Little Company of Mary Medical Institute

  • Family Medicine Physician
  • Torrance, CA
  • NPI 1235182569

  Internal Medicine

  NPD (past)
• Talbert Medical Group, P.C.

  dba Talbert Medical Group

  • Internal Medicine Physician
  • Fountain Valley, CA
  • NPI 1528069176
  NPD (past)
• Memorial Medical Group Inc

  • Durable Medical Equipment & Medical Supplies
  • Phoenix, AZ
  • NPI 1255523643
  NPD (past)

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

{
    "created_epoch": "1271376000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768176000000",
    "number": "1053637959",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35380",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891335380",
            "telephone_number": "702-579-3203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2801 ATLANTIC AVE",
            "city": "LONG BEACH",
            "state": "CA",
            "postal_code": "908061701",
            "telephone_number": "714-436-4444"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2699 Atlantic Ave",
            "address_purpose": "LOCATION",
            "city": "Long Beach",
            "state": "CA",
            "postal_code": "908062710",
            "country_code": "US",
            "telephone_number": "562-988-7000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TAN",
        "first_name": "JOANNA",
        "middle_name": "AI WAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-04-16",
        "last_updated": "2026-01-12",
        "certification_date": "2026-01-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A109279",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amy Phuongque Tan, PHARM.D
• Bunthay Chorn Tan, O.D.
• Christopher Adi Tan, MD
• Jesse William Tan, MD
• Jesus King Tan, MD
• Jofel Tan, OTD, OTR/L
• Mony Chan Tan, NP
• Song N Tan, M.D.
• Katherine Mariko Tanaka, M.D.
• Leslie Tanaka

• Internal Medicine Physician in Long Beach, CA
• Providers in Long Beach, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 12, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.