Summer Ziegler

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

59161 Issued in CA

Practice address

1401 S Grand Ave
Los Angeles, CA 90015-3010

Phone

(213) 748-2411

NPI assigned

Jan 14, 2021

Sex

Female

Sole proprietor

Yes

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 CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Alameda Health SystemGroup PAC ID 3779494521, 597 clinicians

Emergency Physicians Associates San Jose PCGroup PAC ID 8921344292, 131 clinicians

County of Santa ClaraGroup PAC ID 1254244973, 1,000 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Santa Clara Valley Medical Center Hospital, San Jose, CA, CCN 050038

Merit-based Incentive Payment System (MIPS)

Final score

97.92 of 100Reported as group

Quality

87.42

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: sziegler628375@hisp.ehr.sutterhealth.org
• Direct secure messaging: sziegler187425@santaclaravalley.direct-ci.net

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.

• Alameda Health System

  • Surgery Physician
  • Oakland, CA
  • NPI 1740332931
  Medicare reassignment Care Compare group NPD
• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • San Jose, CA
  • NPI 1629301346
  Medicare reassignment Care Compare group NPD
• Emergency Physicians Associates San Jose PC

  • Emergency Medicine Physician
  • San Jose, CA
  • NPI 1306311576
  Medicare reassignment Care Compare group
• Stanford Health Care

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1437292927
  Medicare reassignment NPD
• County of Santa Clara

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • San Jose, CA
  • NPI 1699885079
  Medicare reassignment
• Golden State Emergency Physicians Inc

  • Emergency Medicine Physician
  • Los Angeles, CA
  • NPI 1770886558
  Medicare reassignment
• LPCH Medical Group Div of Lucile

  • Children's Hospital
  • Palo Alto, CA
  • NPI 1417907940
  Medicare reassignment
• Vallejo Emergency Physicians Medical Group Inc.

  • Emergency Medicine Physician
  • Vallejo, CA
  • NPI 1083916373
  Medicare reassignment
• Alameda Health System

  • Clinic/Center
  • Alameda, CA
  • NPI 1124446158
  NPD
• Alameda Health System

  • Federally Qualified Health Center (FQHC)
  • Newark, CA
  • NPI 1497956288
  NPD
• County of Santa Clara

  • Clinic/Center
  • Morgan Hill, CA
  • NPI 1114676251
  NPD
• County of Santa Clara

  • Pharmacy
  • San Jose, CA
  • NPI 1891871919
  NPD

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

• County of Santa Clara

  • General Acute Care Hospital
  • San Jose, CA
  • NPI 1063406551
  Care Compare affiliation

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

{
    "created_epoch": "1610582400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760486400000",
    "number": "1285223297",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 83",
            "city": "GROVELAND",
            "state": "IL",
            "postal_code": "615350083",
            "telephone_number": "309-678-2044"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1401 S GRAND AVE",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900153010",
            "telephone_number": "213-748-2411"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZIEGLER",
        "first_name": "SUMMER",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-01-14",
        "last_updated": "2025-10-15",
        "certification_date": "2025-10-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "59161",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brianna L Ziegler, M.S.W.
• John Steven Ziegler, MD
• Kenneth Richard Ziegler, M.D.
• Michael Ziegler
• Peter Ziegler, D.C
• Victor Allen Ziegler, ASW
• Lauren Ziel, LCSW
• Jeffery John Zielinski, MD
• Jane M Zierhut
• Jillian Ziesmer

• Physician Assistant in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 15, 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.