Active NPI
John P Karis, M.D.
- Neuroradiology Physician
- Phoenix, AZ
National Provider Identifier
1609841790
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Neuroradiology Physician
- License
- 22185
- Practice address
- 350 W Thomas Rd
Phoenix, AZ 85013-4409 - Phone
- (602) 406-3000
- NPI assigned
- Feb 22, 2006
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Diagnostic Radiology Physician | 2085R0202X | 22185 | AZ | |
| Neuroradiology Physician | 2085N0700X | 22185 | AZ | Primary |
Addresses
Primary practice location
350 W Thomas Rd
Phoenix, AZ 85013-4409
Mailing address
PO Box 44037
Phoenix, AZ 85064-4037
Phone (602) 954-6228
Other identifiers 4
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1Z7046 | Other | AZ | HEALTH NET OF AZ |
| 163725 | Medicaid | AZ | |
| XPY189520 | Other | AZ | MEDI-CAL MEDICAID |
| AZ0382300 | Other | AZ | BCBSAZ |
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
- Diagnostic Radiology
- Education
- Duke University School of Medicine, 1987
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
350 W Thomas Rd
Phoenix, AZ 85013-4409
Phone (602) 954-6228
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 86.25 of 100
- Quality
- 75
- Promoting interoperability
- 100
- Improvement activities
- 40
Merit-based Incentive Payment System (MIPS)
- Final score
- 77.86 of 100
- Quality
- 52.79
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Simonmed Imaging, Incorporated | Diagnostic Radiology | Past | Accepting new patients |
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 and National Provider Directory roles.
-
- Neuroradiology Physician
- Phoenix, AZ
- NPI 1679549190
-
- Diagnostic Radiology Physician
- Scottsdale, AZ
- NPI 1164460077
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Phoenix, AZ
- NPI 1982733655
-
- General Acute Care Hospital
- Glendale, AZ
- NPI 1992131734
-
- General Acute Care Hospital
- Prescott, AZ
- NPI 1902897820
-
- General Acute Care Hospital
- Yuma, AZ
- NPI 1194706655
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1140566400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1759795200000",
"number": "1609841790",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 44037",
"city": "PHOENIX",
"state": "AZ",
"postal_code": "850644037",
"telephone_number": "602-954-6228",
"fax_number": "602-957-6142"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "350 W THOMAS RD",
"city": "PHOENIX",
"state": "AZ",
"postal_code": "850134409",
"telephone_number": "602-406-3000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KARIS",
"first_name": "JOHN",
"middle_name": "P",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-22",
"last_updated": "2025-10-07",
"certification_date": "2025-10-07",
"status": "A"
},
"taxonomies": [
{
"code": "2085R0202X",
"taxonomy_group": "",
"desc": "Radiology, Diagnostic Radiology",
"state": "AZ",
"license": "22185",
"primary": false
},
{
"code": "2085N0700X",
"taxonomy_group": "",
"desc": "Radiology, Neuroradiology",
"state": "AZ",
"license": "22185",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "HEALTH NET OF AZ",
"identifier": "1Z7046",
"state": "AZ"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "163725",
"state": "AZ"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "MEDI-CAL MEDICAID",
"identifier": "XPY189520",
"state": "AZ"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BCBSAZ",
"identifier": "AZ0382300",
"state": "AZ"
}
],
"endpoints": [],
"other_names": []
}Other providers in Phoenix, AZ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 2025; 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.