Individual provider Active NPI

Jonathan Randall Willms, D.O.

  • Obstetrics & Gynecology Physician
  • Casa Grande, AZ
National Provider Identifier
1891010658
Registry record updated Aug 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
006349 Issued in AZ
Practice address
1863 East Florence Blvd
Casa Grande, AZ 85122
Phone
(520) 836-3446
NPI assigned
Apr 5, 2010
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 21, 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 006349 AZ Primary

Addresses

Primary practice location

1863 East Florence Blvd
Casa Grande, AZ 85122

Mailing address

PO Box 96395
Phoenix, AZ 85072-6395

Other practice location 1

580 N Camino Mercado Ste 8
Casa Grande, AZ 85122-5757
Phone (520) 381-0380

Other identifiers 6

IdentifierTypeStateIssuer
ZFQ31815OtherAZMEDICARE
Z165308OtherAZMEDICARE
031815OtherAZMEDICARE
031916OtherAZMEDICARE
006349OtherAZMEDICAL LICENSE
901786MedicaidAZ

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ
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

Enrollment IDStateProvider typePAC IDDetails
I20140728002044 AZ Practitioner - Obstetrics/Gynecology 3072739044 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Sun Life Family Health Center IncGroup PAC ID 9335032275, 46 clinicians

Practice addresses (Care Compare)

1856 E Florence Blvd
Casa Grande, AZ 85122-5303
Phone (520) 836-5036

580 N Camino Mercado
Suite 8
Casa Grande, AZ 85122-5757
Phone (520) 381-0381

655 S Dobson Rd
Suite 201
Chandler, AZ 85224-5669
Phone (480) 307-9471

865 N Arizola Rd
Casa Grande, AZ 85122-6011
Phone (520) 836-3446

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Sun Life Family Health Center, Inc. Current Accepting new patients
Sun Life Family Health Center, Inc CurrentSince Nov 12, 2015 Accepting new patients
Obhg Arizona, P.C. Obstetrics & Gynecology CurrentSince Feb 6, 2025 Accepting new patients
Sun Life Family Health Center, Inc. CurrentSince Nov 12, 2015 Accepting new patients
Sun Life Family Health Center, Inc. Past Accepting new patients
Sun Life Family Health Center, Inc. Past Accepting new patients
Sun Life Family Health Center Inc Past Accepting new patients
Sun Life Family Health Center, Inc. Past Accepting new patients
Banner Health Past Accepting new patients
Sun Life Family Health Center, Inc. Past Accepting new patients
Banner Health Past Accepting new patients

Locations

2080 W Southern Ave
Bldg B10
Apache Junction, AZ 85120
Phone (480) 351-2850

865 N Arizola Rd
Casa Grande, AZ 85122
Phone (520) 381-0363

1863 E Florence Blvd
Casa Grande, AZ 85122

1864 E Florence Blvd
Ste 2
Casa Grande, AZ 85122
Phone (520) 381-0320

1856 E Florence Blvd
Casa Grande, AZ 85122
Phone (520) 381-0380

1864 E Florence Blvd
Casa Grande, AZ 85122
Phone (520) 350-7560

580 N Camino Mercado
Ste 8
Casa Grande, AZ 85122
Phone (520) 381-0380

655 S Dobson Rd
Ste 201
Chandler, AZ 85224
Phone (480) 307-9471

1284 N Arizona Blvd
Coolidge, AZ 85128
Phone (520) 723-9131

205 N Stuart Blvd
Eloy, AZ 85131
Phone (520) 466-7883

174 W Highway 287
Florence, AZ 85132
Phone (520) 868-5811

1870 W American Ave
Oracle, AZ 85623
Phone (520) 573-0966

23 S McNab Pkwy
San Manuel, AZ 85631
Phone (520) 385-2234

14502 W Meeker Blvd
Sun City West, AZ 85375
Phone (623) 214-4000

350 N Wilmot Rd
Tucson, AZ 85711
Phone (520) 873-3000

Organizations & group practices 11

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": "1270425600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787270400000",
    "number": "1891010658",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 96395",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850726395"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1863 EAST FLORENCE BLVD",
            "city": "CASA GRANDE",
            "state": "AZ",
            "postal_code": "85122",
            "telephone_number": "520-836-3446"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "580 N Camino Mercado Ste 8",
            "address_purpose": "LOCATION",
            "city": "Casa Grande",
            "state": "AZ",
            "postal_code": "851225757",
            "country_code": "US",
            "telephone_number": "520-381-0380",
            "fax_number": "520-836-1826",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLMS",
        "first_name": "JONATHAN",
        "middle_name": "RANDALL",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-04-05",
        "last_updated": "2026-08-21",
        "certification_date": "2026-08-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "AZ",
            "license": "006349",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "ZFQ31815",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "Z165308",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "031815",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "031916",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENSE",
            "identifier": "006349",
            "state": "AZ"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "901786",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Casa Grande, AZ

Sources for this page

Verify at the official NPI Registry.