Gillian Lee Hsieh, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

A134657 Issued in CA

Practice address

2490 Hospital Dr Ste 111
Mountain View, CA 94040-4126

Phone

(650) 934-7520

NPI assigned

Oct 22, 2012

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

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

Gynecological OncologyAlso: Obstetrics/Gynecology

Education

Baylor College of Medicine, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Sutter Bay Medical FoundationGroup PAC ID 4284538778, shared by 16 NPIs, 3,783 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• El Camino Health Hospital, Mountain View, CA, CCN 050308
• Community Hospital of the Monterey Peninsula Hospital, Monterey, CA, CCN 050145
• Sutter Maternity & Surgery Center of Santa Cruz Hospital, Santa Cruz, CA, CCN 050714
• Peninsula Medical Center Hospital, Burlingame, CA, CCN 050007

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ghsieh410622@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 NPD
• Sutter Bay Medical Foundation

  • Ambulatory Surgical Clinic/Center
  • Palo Alto, CA
  • NPI 1104067115
  Medicare reassignment NPD
• Sutter Bay Medical Foundation

  • Ambulatory Surgical Clinic/Center
  • Fremont, CA
  • NPI 1497996524
  Medicare reassignment NPD
• Sutter Bay Medical Foundation

  • Ambulatory Surgical Clinic/Center
  • Los Altos, CA
  • NPI 1568851327
  Medicare reassignment NPD
• Sutter Bay Medical Foundation

  • Ambulatory Surgical Clinic/Center
  • Mountain View, CA
  • NPI 1982845186
  Medicare reassignment NPD
• Sutter Bay Medical Foundation

  • Multi-Specialty Clinic/Center
  • Sacramento, CA
  • NPI 1003267196

  Obstetrics & Gynecology

  NPD
• Sutter Bay Medical Foundation

  • Ambulatory Surgical Clinic/Center
  • San Jose, CA
  • NPI 1043654486
  NPD
• Sutter Bay Medical Foundation

  • Ambulatory Surgical Clinic/Center
  • San Carlos, CA
  • NPI 1164840088
  NPD
• Sutter Bay Medical Foundation

  • Ambulatory Surgical Clinic/Center
  • Fremont, CA
  • NPI 1306241534
  NPD
• Sutter Bay Medical Foundation

  • Clinical Medical Laboratory
  • Santa Clara, CA
  • NPI 1669287033
  NPD
• Community Hospital of the Monterey Peninsula

  • General Acute Care Hospital
  • Monterey, CA
  • NPI 1932197258
  NPD (past)
• Dignity Health

  • General Acute Care Hospital
  • Santa Cruz, CA
  • NPI 1427181007
  NPD (past)

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

• Community Hospital of the Monterey Peninsula

  • Psychiatric Hospital Unit
  • Monterey, CA
  • NPI 1679562169
  Care Compare affiliation
• Community Hospital of the Monterey Peninsula

  • General Acute Care Hospital
  • Monterey, CA
  • NPI 1932197258
  Care Compare affiliation
• El Camino Hospital

  • General Acute Care Hospital
  • Mountain View, CA
  • NPI 1093712374
  Care Compare affiliation
• El Camino Hospital

  • General Acute Care Hospital
  • Los Gatos, CA
  • NPI 1417199340
  Care Compare affiliation
• El Camino Hospital

  • General Acute Care Hospital
  • Los Gatos, CA
  • NPI 1457594087
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Burlingame, CA
  • NPI 1043670334
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Menlo Park, CA
  • NPI 1295199701
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Santa Cruz, CA
  • NPI 1689035628
  Care Compare affiliation

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

{
    "created_epoch": "1350864000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1063765576",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2350 W EL CAMINO REAL FL 2",
            "city": "MOUNTAIN VIEW",
            "state": "CA",
            "postal_code": "940406203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2490 HOSPITAL DR STE 111",
            "city": "MOUNTAIN VIEW",
            "state": "CA",
            "postal_code": "940404126",
            "telephone_number": "650-934-7520"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HSIEH",
        "first_name": "GILLIAN",
        "middle_name": "LEE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-10-22",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "A134657",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TEXAS PHYSICIAN IN TRAINING",
            "identifier": "BP10039750",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Dominique Horton, MSW, LCSW
• Hospital Drive Pediatrics Inc
• Hospital Drive Surgery Center, LLC
• Lindsey Houseman
• Rachel Howard, LMFT
• Jean W Hsu, O.D.
• Annabelle Hu
• Serena Hu, DDS
• Jennifer Chia-Ruey Hua, O.D.
• Jenny-Jean Hua, MD

• Obstetrics & Gynecology Physician in Mountain View, CA
• Providers in Mountain View, CA by specialty
• Obstetrics & Gynecology Physician in California

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