NPIMap

Organization Active NPI

Northwest Rheumatology PLLC

  • Rheumatology Physician
  • Tucson, AZ
National Provider Identifier
1083669949
Registry record updated Jun 25, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Rheumatology PhysicianTaxonomy code 207RR0500X
License
30725 Issued in AZ
Legal business name
NORTHWEST RHEUMATOLOGY PLLC
Practice address
403 W Cool Dr Ste 107
Tucson, AZ 85704-6551
Phone
(520) 792-2199
NPI assigned
May 22, 2006
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jun 25, 2025

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

Authorized official

Name
Ulker Tok, MDNPI 1073580924
Title
Owner/President
Phone
(520) 792-2199

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Rheumatology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207RR0500X 30725 AZ Primary

Addresses

Primary practice location

403 W Cool Dr Ste 107
Tucson, AZ 85704-6551

Mailing address

403 W Cool Dr Ste 107
Tucson, AZ 85704-6551
Phone (520) 792-2199

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20060731000457 AZ Part B Supplier - Clinic/Group Practice 9335152743 Receives reassigned benefits from 2 practitioners
Practice locations: Tucson, AZ

National Provider Directory

National Provider Directory

Locations

13 N San Francisco St
Ste 6
Flagstaff, AZ 86001
Phone (928) 405-0173

155 Calle Portal
Ste 700
Sierra Vista, AZ 85635
Phone (520) 459-0203

13101 N Oracle Rd
Ste 175
Tucson, AZ 85739
Phone (520) 792-2199

Practitioners & affiliated clinicians

Practitioners 15

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

View all 15

NPI Registry JSON

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

{
    "created_epoch": "1148256000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1750809600000",
    "number": "1083669949",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "403 W COOL DR STE 107",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857046551",
            "telephone_number": "520-792-2199"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "403 W COOL DR STE 107",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857046551",
            "telephone_number": "520-792-2199"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "NORTHWEST RHEUMATOLOGY PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-05-22",
        "last_updated": "2025-06-25",
        "certification_date": "2025-06-25",
        "status": "A",
        "authorized_official_last_name": "TOK",
        "authorized_official_first_name": "ULKER",
        "authorized_official_title_or_position": "OWNER/PRESIDENT",
        "authorized_official_telephone_number": "520-792-2199",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Rheumatology",
            "state": "AZ",
            "license": "30725",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Tucson, AZ

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 25, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.