Ulker Tok, M.D.
NPI 1073580924ActiveIndividual· Internal Medicine, Rheumatology· Tucson, AZ
Internal Medicine, Rheumatology (M.D.) with Northwest Rheumatology PLLC, practicing in Tucson, Arizona. Their prescriptions cost Medicare Part D more than their services did: $9,322,039 for 7,244 claims, against $60,434 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $2,000 in all, mostly food and beverage.
Overview
| NPI | 1073580924 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 28, 2006 |
| Last updated in NPPES | Jun 25, 2025 |
| Certified by provider | Jun 25, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 30725 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 249 |
|---|---|
| Services billed | 1,809 across 23 procedure codes |
| Paid by Medicare | $60,434 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,244 · 10,915 30-day fills |
|---|---|
| Patients | 859 |
| Total drug cost | $9,322,039 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Rheumatology |
Medical group
- Northwest Rheumatology PLLCTucson, AZ · 2 clinicians
Industry payments (Open Payments)
- 2025$2,000 · 119 payments from 18 companies
- 2024$2,903 · 157 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $607.93 | 37 |
| Pfizer Inc. | $309.69 | 21 |
| Amgen Inc. | $307.32 | 20 |
| Glaxosmithkline, LLC. | $148.85 | 11 |
| Organon LLC | $124.17 | 6 |
What the 2025 payments were for
- Food and Beverage$2,000 · 119 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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