David M. Weiss, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

G77999 Issued in CA

Practice address

23560 Madison St Ste 103
Torrance, CA 90505-4709

Phone

(310) 325-9200

Fax

(310) 325-9201

NPI assigned

Oct 20, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

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

University of Michigan Medical School, 1992

Medicare assignment

May accept Medicare assignment

Telehealth

Offers telehealth services

Group practices

Cynthia Williams MD IncGroup PAC ID 4880690809, 2 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Torrance Memorial Medical Center Hospital, Torrance, CA, CCN 050351

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/JIAGAA

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.

• Cynthia Williams M.D. Inc.

  • Endocrinology, Diabetes & Metabolism Physician
  • Torrance, CA
  • NPI 1205947686
  Medicare reassignment Care Compare group NPD
• Westchester Medical Group

  • Internal Medicine Physician
  • Torrance, CA
  • NPI 1578645180
  Medicare reassignment

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

• Torrance Memorial Medical Center

  • General Acute Care Hospital
  • Torrance, CA
  • NPI 1467459776
  Care Compare affiliation

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

{
    "created_epoch": "1161302400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762819200000",
    "number": "1609958289",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "23560 MADISON ST STE 103",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905054709",
            "telephone_number": "310-325-9200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23560 MADISON ST STE 103",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905054709",
            "telephone_number": "310-325-9200",
            "fax_number": "310-325-9201"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WEISS",
        "first_name": "DAVID",
        "middle_name": "M.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-20",
        "last_updated": "2025-11-11",
        "certification_date": "2025-11-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G77999",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STAT LIC #",
            "identifier": "G77999",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Steven Weinstock, M.D.
• Aaron Weis
• Madeline Weisberg
• Maisie Weishoff
• Weiss Chiropractic Inc
• Marc Dana Weiss, DC
• Mariya Weiss
• Adam M Weitzman, MD
• Terri Lynn Welby-Zajec, P.T.
• Anithea Latanya Welch, CMT

• Internal Medicine Physician in Torrance, CA
• Providers in Torrance, 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 Nov 11, 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.