Gretl CHI-Wing Lam, M.D.

Primary specialty

Hospice and Palliative Medicine (Internal Medicine) PhysicianTaxonomy code 207RH0002X

License

A203145 Issued in CA

Practice address

301 Old San Francisco Rd
Sunnyvale, CA 94086-6386

Phone

(408) 730-2860

NPI assigned

Apr 26, 2017

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 OR, CA2 enrollments

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 2

Specialty

Hospice/Palliative Care

Education

New York University School of Medicine, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sutter Care at Home Home health agency, Saratoga, CA, CCN 757662

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: glam748725@hisp.ehr.sutterhealth.org

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.

• Sutter Bay Medical Foundation

  • Multi-Specialty Clinic/Center
  • Palo Alto, CA
  • NPI 1013950807
  Medicare reassignment Care Compare group NPD
• Salem Health

  • General Acute Care Hospital
  • Salem, OR
  • NPI 1265431829
  Medicare reassignment NPD
• Sutter Bay Medical Foundation

  • Clinical Medical Laboratory
  • Santa Clara, CA
  • NPI 1669287033
  NPD
• Salem Health

  • Durable Medical Equipment & Medical Supplies
  • Keizer, OR
  • NPI 1487434775
  NPD
• Sutter East Bay Medical Foundation

  • Family Medicine Physician
  • Orinda, CA
  • NPI 1871538769
  NPD (past)

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

• Sutter Visiting Nurse Association and Hospice

  • Home Health Agency
  • Saratoga, CA
  • NPI 1558029876
  Care Compare affiliation

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

{
    "created_epoch": "1493164800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758499200000",
    "number": "1184159253",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 276950",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958276950",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "301 OLD SAN FRANCISCO RD",
            "city": "SUNNYVALE",
            "state": "CA",
            "postal_code": "940866386",
            "telephone_number": "408-730-2860"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LAM",
        "first_name": "GRETL",
        "middle_name": "CHI-WING",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-04-26",
        "last_updated": "2025-09-22",
        "certification_date": "2025-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0002X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hospice and Palliative Medicine",
            "state": "CA",
            "license": "A203145",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Frances Lai, ED.S., NCSP, LEP
• Jerry Lai, M.D.
• Francesca Lalli
• Bryan Lam
• Christopher Lam
• Jeffrey Lam, PA-C
• Kannika Lam
• Kit Lam, NP
• Maynard Lam, PHARMD
• Marlene Anne Lamar, O.T.R.,C.H.T.

• Hospice and Palliative Medicine (Internal Medicine) Physician in Sunnyvale, CA
• Providers in Sunnyvale, CA by specialty
• Hospice and Palliative Medicine (Internal Medicine) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 22, 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.