William Patrick Mannion Jr., D.D.S.

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

40850 Issued in CA

Practice address

1091 S Dora St
Ukiah, CA 95482-5736

Phone

(707) 462-1540

Fax

(707) 462-7601

NPI assigned

Mar 17, 2006

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

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: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

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 and National Provider Directory roles.

• William Vainer Inc.

  • General Practice Dentistry
  • Ukiah, CA
  • NPI 1881314623
  NPD (past)

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

{
    "created_epoch": "1142553600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1972572162",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1414 CHRISTOPHER CT",
            "city": "UKIAH",
            "state": "CA",
            "postal_code": "954823674",
            "telephone_number": "707-462-1914"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1091 S DORA ST",
            "city": "UKIAH",
            "state": "CA",
            "postal_code": "954825736",
            "telephone_number": "707-462-1540",
            "fax_number": "707-462-7601"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MANNION",
        "first_name": "WILLIAM",
        "middle_name": "PATRICK",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "D.D.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-17",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CA",
            "license": "40850",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Daniel P Mandelbaum, M.D.
• Breanna Manfredini
• Jeremy S Mann, M.D.
• Pamela Mann, MSW, ACSW
• Carrie Jean Manning
• Navneet Mansukhani, DDS
• Manzanita Services Inc.
• Sandra Marcell
• Ilona Marcello
• Schuyler Marcier

• General Practice Dentistry in Ukiah, CA
• Providers in Ukiah, CA by specialty
• General Practice Dentistry in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.