Individual provider Active NPI

William A. Sia, NP-C

  • Family Nurse Practitioner
  • Upland, CA
National Provider Identifier
1679063945
Registry record updated Sep 12, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
F03180293 Issued in CA
Practice address
1382 E Foothill Blvd
Upland, CA 91786-4014
Phone
(909) 982-6500
Fax
(909) 920-0406
NPI assigned
May 13, 2018
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 12, 2019

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X F03180293 CA Primary

Addresses

Primary practice location

1382 E Foothill Blvd
Upland, CA 91786-4014

Mailing address

1365 Wickham CT
San Dimas, CA 91773-3862
Phone (626) 261-3175

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20190103002723 CA Practitioner - Nurse Practitioner 8022354539 Reassigns benefits to 3 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
F03180293CAMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Beverly Community Clinic CurrentSince Nov 17, 2025 Accepting new patients
Clinica Medica Dr Juan Escobar Inc CurrentSince Dec 24, 2025 Accepting new patients

Locations

2252 Beverly Blvd
Ste 103
Los Angeles, CA 90057
Phone (213) 674-7124

1711 W Temple St
Ste 3695
Los Angeles, CA 90026
Phone (213) 989-0700

3755 Beverly Blvd
Ste 200
Los Angeles, CA 90004
Phone (213) 370-1050

1711 W Temple St
Ste 3600
Los Angeles, CA 90026
Phone (213) 989-0700

Interoperability endpoints

  • FHIR API: https://fhir.meditouchehr.com/api/fhir/r4/

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1526169600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1568246400000",
    "number": "1679063945",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1365 WICKHAM CT",
            "city": "SAN DIMAS",
            "state": "CA",
            "postal_code": "917733862",
            "telephone_number": "626-261-3175"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1382 E FOOTHILL BLVD",
            "city": "UPLAND",
            "state": "CA",
            "postal_code": "917864014",
            "telephone_number": "909-982-6500",
            "fax_number": "909-920-0406"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIA",
        "first_name": "WILLIAM",
        "middle_name": "A.",
        "credential": "NP-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-05-13",
        "last_updated": "2019-09-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "F03180293",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Upland, CA

Sources for this page

Verify at the official NPI Registry.