Individual provider Active NPI

Stephen A Williams, M.D.

  • Obstetrics & Gynecology Physician
  • Pleasanton, CA
National Provider Identifier
1881613461
Registry record updated Jul 9, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
A31965 Issued in CA
Practice address
5575 W Las Positas Blvd
#330
Pleasanton, CA 94588-5801
Phone
(925) 734-6655
Fax
(925) 734-9294
NPI assigned
Jul 18, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 9, 2007

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X A31965 CA Primary

Addresses

Primary practice location

5575 W Las Positas Blvd
#330
Pleasanton, CA 94588-5801

Mailing address

5575 W Las Positas Blvd
#330
Pleasanton, CA 94588-5801
Phone (925) 734-6655

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A31965CAMDObstetrics & Gynecology Physician

NPI Registry JSON

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

{
    "created_epoch": "1153180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183939200000",
    "number": "1881613461",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5575 W LAS POSITAS BLVD",
            "address_2": "#330",
            "city": "PLEASANTON",
            "state": "CA",
            "postal_code": "945885801",
            "telephone_number": "925-734-6655",
            "fax_number": "925-734-9294"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5575 W LAS POSITAS BLVD",
            "address_2": "#330",
            "city": "PLEASANTON",
            "state": "CA",
            "postal_code": "945885801",
            "telephone_number": "925-734-6655",
            "fax_number": "925-734-9294"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "STEPHEN",
        "middle_name": "A",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-18",
        "last_updated": "2007-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "A31965",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Pleasanton, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 2007; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.