NPIMap

Individual provider Active NPI

Phillip Alexander Williams, MD

  • Obstetrics & Gynecology Physician
  • Flagstaff, AZ
National Provider Identifier
1437143716
Registry record updated Jul 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
25398 Issued in AZ
Practice address
1895 N Jasper Dr Ste 3
Flagstaff, AZ 86001-1632
Phone
(928) 213-6385
NPI assigned
Sep 1, 2005
Last updated
Jul 15, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 15, 2026

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 25398 AZ Primary

Addresses

Primary practice location

1895 N Jasper Dr Ste 3
Flagstaff, AZ 86001-1632

Mailing address

1895 N Jasper Dr Ste 3
Flagstaff, AZ 86001-1632
Phone (928) 213-6386

Other identifiers 1

IdentifierTypeStateIssuer
386062MedicaidAZ

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20031219000741 AZ Practitioner - Obstetrics/Gynecology 6305743568 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
University of Utah School of Medicine, 1992
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Genesis OB GYN PLLCGroup PAC ID 4284724279, 109 clinicians

Practice addresses (Care Compare)

1215 N Beaver St
Suite 203
Flagstaff, AZ 86001-3126
Phone (928) 773-2249

174 S Coronado Dr
Suite a
Sierra Vista, AZ 85635-6356
Phone (520) 877-3800

1895 N Jasper Dr
Flagstaff, AZ 86001-1632

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Skin biopsy1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Genesis OB GYN PLLC Obstetrics & Gynecology CurrentSince Dec 1, 2023 Accepting new patients
Flagstaff OBGYN LLC Obstetrics & Gynecology PastSince Jul 1, 2003 Accepting new patients

Locations

1100 N San Francisco St
Ste B
Flagstaff, AZ 86001
Phone (928) 779-7851

1521 E Tangerine Rd
Ste 361
Oro Valley, AZ 85755
Phone (520) 545-0573

174 S Coronado Dr
Ste A
Sierra Vista, AZ 85635
Phone (520) 417-9920

2424 N Wyatt Dr
Fl 2
Tucson, AZ 85712
Phone (520) 545-0930

2424 N Wyatt Dr
Ste 260
Tucson, AZ 85712
Phone (520) 795-0549

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/19050/brand/1/csg/1/fhir/r4
  • Direct secure messaging: phillip.williams.1@19050.direct.athenahealth.com

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 6

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

NPI Registry JSON

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

{
    "created_epoch": "1125532800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784073600000",
    "number": "1437143716",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1895 N JASPER DR STE 3",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860011632",
            "telephone_number": "928-213-6386",
            "fax_number": "928-213-6386"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1895 N JASPER DR STE 3",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860011632",
            "telephone_number": "928-213-6385"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "PHILLIP",
        "middle_name": "ALEXANDER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-09-01",
        "last_updated": "2026-07-15",
        "certification_date": "2026-07-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "AZ",
            "license": "25398",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "386062",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Flagstaff, AZ

Sources for this page

Verify at the official NPI Registry.