Individual provider Active NPI

James Christopher Linhoff, PA-C

  • Physician Assistant
  • Phoenix, AZ
National Provider Identifier
1649259482
Registry record updated Aug 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
8735 Issued in AZ
Practice address
18444 N 25TH Ave Ste 210
Phoenix, AZ 85023-1264
Phone
(866) 974-2673
Fax
(866) 939-2673
NPI assigned
Jan 11, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 13, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA10004151 WA
Physician Assistant 363A00000X 8735 AZ Primary

Addresses

Primary practice location

18444 N 25TH Ave Ste 210
Phoenix, AZ 85023-1264

Mailing address

18444 N 25TH Ave Ste 310
Phoenix, AZ 85023-1266
Phone (866) 974-2673

Other identifiers 2

IdentifierTypeStateIssuer
109260MedicaidAZ
263929OtherWAL&I

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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20211221002861 AZ Practitioner - Physician Assistant 8224161328 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Center for Orthopedic Research and Education LLCGroup PAC ID 0345287322, 247 clinicians

Practice addresses (Care Compare)

10494 W Thunderbird Blvd
Sun City, AZ 85351-6122
Phone (866) 974-2673

18444 N 25TH Ave
Phoenix, AZ 85023-1264
Phone (866) 974-2673

Hospital & facility affiliations

  • Banner Desert Medical Center Hospital, Mesa, AZ, CCN 030065

Merit-based Incentive Payment System (MIPS)

Final score
85.65 of 100Reported as group
Quality
76.23
Promoting interoperability
100
Improvement activities
40
Cost
75.95

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Center for Orthopedic Research and Education, LLC Physician Assistant CurrentSince Dec 16, 2021 Accepting new patients

Locations

18444 N 25th Ave
Ste 210
Phoenix, AZ 85023
Phone (669) 742-6738

18444 N 25th Ave
Ste 310
Phoenix, AZ 85023
Phone (623) 241-8706

10494 W Thunderbird Blvd
Ste 102
Sun City, AZ 85351
Phone (623) 975-8311

Interoperability endpoints

  • Direct secure messaging: james.linhoff.1@22724.direct.athenahealth.com

Organizations & group practices 1

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.

Hospital & facility affiliations 1

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": "1136937600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755043200000",
    "number": "1649259482",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "18444 N 25TH AVE STE 310",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850231266",
            "telephone_number": "866-974-2673"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18444 N 25TH AVE STE 210",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850231264",
            "telephone_number": "866-974-2673",
            "fax_number": "866-939-2673"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LINHOFF",
        "first_name": "JAMES",
        "middle_name": "CHRISTOPHER",
        "name_prefix": "Mr.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-11",
        "last_updated": "2025-08-13",
        "certification_date": "2025-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WA",
            "license": "PA10004151",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "AZ",
            "license": "8735",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "109260",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "L&I",
            "identifier": "263929",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Phoenix, AZ

Sources for this page

Verify at the official NPI Registry.