Yen Cheng Hsia, MD

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

A133168 Issued in CA

Practice address

350 N Wiget LN Ste 200
Walnut Creek, CA 94598-2448

Phone

(925) 934-7800

NPI assigned

Apr 25, 2014

Last updated

Jan 14, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Joey Hsia Other name

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

Ophthalmology

Education

Clvlnd Clinic Lerner College of Med of Case WSTN RSV University, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

David D Gilbert MD IncGroup PAC ID 6103212907, 4 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180

Merit-based Incentive Payment System (MIPS)

Final score

75 of 100Reported as group

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• David D. Gilbert, MD, Inc

  dba Diablo Eye Associates

  • Ophthalmology Physician
  • Walnut Creek, CA
  • NPI 1780271908
  Medicare reassignment Care Compare group NPD
• John Muir Trauma Physicians Billing Service

  • Hospitalist Physician
  • Walnut Creek, CA
  • NPI 1093864837
  Medicare reassignment NPD
• Regents of the University of California

  dba UCSF Dept of Medicine General Medicine

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1760552343
  Medicare reassignment NPD
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104

  Ophthalmology

  Medicare reassignment NPD
• University of California San Francisco

  dba UCSF Pediatrics Group

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment NPD
• University of California SFGH Medical Group

  dba UCSF SFGH Medical Group Dept of Anesthesia

  • Anesthesiology Physician
  • San Francisco, CA
  • NPI 1366417420
  Medicare reassignment NPD
• John Muir Trauma Physicians Billing Service

  • Trauma Surgery Physician
  • Walnut Creek, CA
  • NPI 1962551861

  Ophthalmology

  NPD
• UCSF Medical Group Business Services

  dba UCSF Orthotic and Prosthetic Center - Gateway Medical Building

  • Health Service Clinic/Center
  • San Francisco, CA
  • NPI 1194115246
  NPD
• University of California San Francisco

  dba UCSF Medical Center

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1164512851
  NPD
• University of California San Francisco

  dba UCSF Outpatient Pharmacy at Parnassus

  • Community/Retail Pharmacy
  • San Francisco, CA
  • NPI 1659141711
  NPD
• University of California SFGH Medical Group

  dba UCSF SFGH Medical Group Division of Vascular Surgery

  • Vascular Surgery Physician
  • San Francisco, CA
  • NPI 1033913959
  NPD
• University of California SFGH Medical Group

  dba UCSF SFGH Medical Group Dept of Ophthalmology

  • Ophthalmology Physician
  • San Francisco, CA
  • NPI 1770558827
  NPD

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

• John Muir Health

  dba John Muir Health, Walnut Creek Medical Center

  • General Acute Care Hospital
  • Walnut Creek, CA
  • NPI 1740215219
  Care Compare affiliation

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

{
    "created_epoch": "1398384000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768348800000",
    "number": "1326468661",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "350 N WIGET LN STE 200",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982448",
            "telephone_number": "925-934-7800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "350 N WIGET LN STE 200",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982448",
            "telephone_number": "925-934-7800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HSIA",
        "first_name": "YEN",
        "middle_name": "CHENG",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-04-25",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CA",
            "license": "A133168",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JOEY",
            "last_name": "HSIA",
            "credential": "M.D.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Linda S Howard, RPH
• Tori Howard
• Ashleigh Nicole Howick
• Sheryl Marie Hoye, LCSW
• Karen Camille Hoyt, LMFT
• Kenneth C Hsiao, MD
• Abraham G Hsieh, MD
• Hongji Hu
• Jianfei Hu, MD
• Chau Bao Hua, PHARM.D.

• Ophthalmology Physician in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Ophthalmology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 14, 2026; 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.