Active NPI
Jonathan Randall Willms, D.O.
- Obstetrics & Gynecology Physician
- Casa Grande, AZ
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- 006349
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| ZFQ31815 | Other | AZ | MEDICARE |
| Z165308 | Other | AZ | MEDICARE |
| 031815 | Other | AZ | MEDICARE |
| 031916 | Other | AZ | MEDICARE |
| 006349 | Other | AZ | MEDICAL LICENSE |
| 901786 | Medicaid | AZ |
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
Enrollment records 1
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
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
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Sun Life Family Health Center, Inc. | Current | Accepting new patients | |
| Sun Life Family Health Center, Inc | Current | Accepting new patients | |
| Obhg Arizona, P.C. | Obstetrics & Gynecology | Current | Accepting new patients |
| Sun Life Family Health Center, Inc. | Current | 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.
-
- Federally Qualified Health Center (FQHC)
- Casa Grande, AZ
- NPI 1891913166
-
- Obstetrics & Gynecology Physician
- Chandler, AZ
- NPI 1902188642
-
- Federally Qualified Health Center (FQHC)
- Casa Grande, AZ
- NPI 1417286568
-
- Community/Retail Pharmacy
- Casa Grande, AZ
- NPI 1275693947
-
- General Acute Care Hospital
- Casa Grande, AZ
- NPI 1003232976
-
- General Acute Care Hospital
- Chandler, AZ
- NPI 1972139004
-
- Federally Qualified Health Center (FQHC)
- Casa Grande, AZ
- NPI 1639831985
-
- Federally Qualified Health Center (FQHC)
- Mesa, AZ
- NPI 1508276940
-
- Federally Qualified Health Center (FQHC)
- Eloy, AZ
- NPI 1588876429
-
- Federally Qualified Health Center (FQHC)
- Maricopa, AZ
- NPI 1881073443
-
- Federally Qualified Health Center (FQHC)
- Florence, AZ
- NPI 1902278252
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 21, 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.