Kwok Internal Medicine a Medical Corporation

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Legal business name

KWOK INTERNAL MEDICINE A MEDICAL CORPORATION

Practice address

895 Sir Francis Drake Blvd
San Anselmo, CA 94960-1916

Phone

(415) 925-3617

Fax

(415) 925-3597

NPI assigned

Apr 23, 2015

Organization subpart

No

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

Authorized official

Name

Dr. Michael K. Kwok, MDNPI 1124119235

Title

Owner

Phone

(415) 925-3617

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Michael Kam-Hong Kwok, M.D.

  • Internal Medicine Physician
  • Novato, CA
  • NPI 1124119235
  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1429747200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1750032000000",
    "number": "1649667072",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 6671",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954060671",
            "telephone_number": "415-925-3617",
            "fax_number": "415-925-3597"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "895 SIR FRANCIS DRAKE BLVD",
            "city": "SAN ANSELMO",
            "state": "CA",
            "postal_code": "949601916",
            "telephone_number": "415-925-3617",
            "fax_number": "415-925-3597"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "KWOK INTERNAL MEDICINE A MEDICAL CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2015-04-23",
        "last_updated": "2025-06-16",
        "certification_date": "2025-06-16",
        "status": "A",
        "authorized_official_last_name": "KWOK",
        "authorized_official_first_name": "MICHAEL",
        "authorized_official_middle_name": "K.",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "415-925-3617",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Shu Rong Koo
• Neil Kraus, D.C.
• Susan Shaffer Krebs
• Maxwell Kreger, RADT
• Margaret Kuffel, OTR/L
• David M. Lakes, MD
• Elisa Landauro-Johnston, B.A. LAW AND STUDIES
• Lois Lane, LCSW
• Lassa J. Frank, OD, Inc
• Shai Lavie

• Internal Medicine Physician in San Anselmo, CA
• Providers in San Anselmo, 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 Jun 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.