William Sierra, M.D.

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

G32593 Issued in CA

Practice address

4754 E Cesar E Chavez Ave
Los Angeles, CA 90022-1234

Phone

(323) 909-0041

Fax

(323) 909-0042

NPI assigned

Jul 18, 2006

Last updated

Aug 23, 2016By 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 identifiers 2

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Saint Anthony Medical Corporation

  • General Practice Physician
  • Lennox, CA
  • NPI 1952512279
  NPD (past)
• San Antonio Lennox

  • General Practice Physician
  • Lennox, CA
  • NPI 1033303920
  NPD (past)
• Santa Teresita Medical Clinic Group Inc

  dba Santa Teresita Medical Clinic

  • Specialist
  • Los Angeles, CA
  • NPI 1932425899
  NPD (past)

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

{
    "created_epoch": "1153180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1471910400000",
    "number": "1275552796",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4754 E CESAR E CHAVEZ AVE",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900221234",
            "telephone_number": "323-909-0041",
            "fax_number": "323-909-0042"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4754 E CESAR E CHAVEZ AVE",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900221234",
            "telephone_number": "323-909-0041",
            "fax_number": "323-909-0042"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIERRA",
        "first_name": "WILLIAM",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-18",
        "last_updated": "2016-08-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CA",
            "license": "G32593",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G325931",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE NUMBER",
            "identifier": "G32593A",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Darlene Sierra
• Lizeth Sierra
• Maria Esther Sierra
• Morena Guadalupe Sierra
• Tiffany Rae Sierra, LVN
• Kenneth Scott Siers, LCSW
• Matthew Christopher Sies, M.D.
• Theodore Martens Sievers, PHARM.D.
• Diana Ann Siew
• Hector Sifontes

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 23, 2016; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.