Donald W. Northfelt, M.D.
NPI 1316922008ActiveIndividual· Internal Medicine, Hematology & Oncology· Phoenix, AZ
Internal Medicine, Hematology & Oncology (M.D.) in Phoenix, Arizona, trained at University of Minnesota Medical School (class of 1985). In 2024 Medicare paid $1,488,997 for 682 patients, and Part D covered 403 of their prescriptions, 67% of them generic. Beone Medicines USA, Inc. was the largest of 3 companies reporting payments in 2025, $81.24 in all, mostly food and beverage.
Overview
| NPI | 1316922008 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 14, 2005 |
| Last updated in NPPES | Sep 10, 2020 |
| Certified by provider | Sep 10, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 30026 | AZ |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 54262 | CO |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 59022 | CA |
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 - Hematology/Oncology (AZ); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 682 |
|---|---|
| Services billed | 69,513 across 141 procedure codes |
| Paid by Medicare | $1,488,997 |
Part D prescriptions in 2024
| Prescriptions (claims) | 403 · 600 30-day fills |
|---|---|
| Patients | 102 |
| Total drug cost | $1,319,781 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Hematology |
| Telehealth | Offers telehealth |
Medical groups
- Mayo Clinic ArizonaScottsdale, AZ · 1,626 clinicians
- Gila River Health Care CorporationSacaton, AZ · 247 clinicians
- Dhew Ind Hlth Sv Hlth Svs and Mntl Hlth AdmPhoenix, AZ · 227 clinicians
Hospital affiliations
- Huhu Kam Memorial HospitalSacaton, AZ
- Mayo Clinic HospitalPhoenix, AZ
- Phoenix Indian Medical CenterPhoenix, AZ
Industry payments (Open Payments)
- 2025$81.24 · 3 payments from 3 companies
- 2024$155.79 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Beone Medicines USA, Inc. | $32.45 | 1 |
| Stemline Therapeutics Inc. | $30.03 | 1 |
| Springworks Therapeutics, Inc. | $18.76 | 1 |
What the 2025 payments were for
- Food and Beverage$81.24 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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