Nathan K. Hatfield, D.O.
NPI 1053846105ActiveIndividual· Internal Medicine· Mesa, AZ
Internal Medicine (D.O.) in Mesa, Arizona, trained at Edward Via Col of Osteo Medicine-Virginia Campus (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $370,937 for 4,014 claims, against $48,499 paid for services in 2024. Tempus Ai, Inc was the largest of 2 companies reporting payments in 2025, $135.49 in all, mostly food and beverage.
Overview
| NPI | 1053846105 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Apr 26, 2017 |
| Last updated in NPPES | Sep 25, 2020 |
| Certified by provider | Sep 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 008505 | AZ |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | 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 - Internal Medicine (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 192 |
|---|---|
| Services billed | 1,050 across 58 procedure codes |
| Paid by Medicare | $48,499 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,014 · 9,364 30-day fills |
|---|---|
| Patients | 451 |
| Total drug cost | $370,937 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Edward Via Col of Osteo Medicine-Virginia Campus |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Honorhealth Medical Group, LLCScottsdale, AZ · 332 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$135.49 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tempus Ai, Inc | $115.29 | 1 |
| Exact Sciences Corporation | $20.20 | 1 |
What the 2025 payments were for
- Food and Beverage$135.49 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 259 internal medicine physicians in Mesa · All internal medicine physicians in Arizona