Lilly Frawley Hammack, DO, RDN

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

21928 Issued in CA

Practice address

7520 Arroyo Cir
Gilroy, CA 95020-7303

Phone

(408) 848-4600

NPI assigned

Nov 4, 2013

Last updated

Aug 4, 2025By 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 2

Addresses

Electronic endpoints 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 North Texas HSC, College of Osteopathic Med, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Permanente Medical Group IncGroup PAC ID 8921910225, 10,928 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Kaiser Foundation Hospital-San Jose Hospital, San Jose, CA, CCN 050604

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Permanente Medical Group Inc

  • Internal Medicine Physician
  • Santa Clara, CA
  • NPI 1073606299
  Medicare reassignment Care Compare group NPD
• Permanente Medical Group Inc

  • Internal Medicine Physician
  • Stockton, CA
  • NPI 1548343510
  NPD
• Permanente Medical Group, Inc

  • Clinical Medical Laboratory
  • San Jose, CA
  • NPI 1497971584
  NPD

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

• Kaiser Foundation Hospitals

  dba Kaiser Foundation Hospital San Jose

  • General Acute Care Hospital
  • San Jose, CA
  • NPI 1063582989
  Care Compare affiliation

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

{
    "created_epoch": "1383523200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754265600000",
    "number": "1972932523",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "18045 HILLWOOD LN",
            "city": "MORGAN HILL",
            "state": "CA",
            "postal_code": "950373526",
            "telephone_number": "623-866-3574"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7520 ARROYO CIR",
            "city": "GILROY",
            "state": "CA",
            "postal_code": "950207303",
            "telephone_number": "408-848-4600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAMMACK",
        "first_name": "LILLY",
        "middle_name": "FRAWLEY",
        "name_prefix": "Dr.",
        "credential": "DO, RDN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-11-04",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "TX",
            "license": "DT81915",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "21928",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "7520 Arroyo Cir",
            "city": "Gilroy",
            "state": "CA",
            "country_code": "US",
            "postal_code": "950207303",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Yen Ha
• Bailey Dawn Hall
• Allyson Hamada
• Christina Hamilton
• Jennifer Hamilton, P.T.
• Ryen Hampton
• Mason Han
• Mary Elizabeth Haney
• Dawn Hansen, SLP
• Richard J. Harper, MD

• Internal Medicine Physician in Gilroy, CA
• Providers in Gilroy, 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 Aug 4, 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.