Daniel H. Ahn, D.O.
NPI 1669633897ActiveIndividual· Internal Medicine, Hematology & Oncology· Scottsdale, AZ
Internal Medicine, Hematology & Oncology (D.O.) in Scottsdale, Arizona, trained at University of North Texas Hsc, College of Osteopathic Med (class of 2008). In 2024 Medicare paid $2,046,002 for 680 patients, and Part D covered 388 of their prescriptions, 76% of them generic. Exelixis Inc. was the largest of 5 companies reporting payments in 2025, $8,707 in all, mostly consulting fees.
Overview
| NPI | 1669633897 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 20, 2008 |
| Last updated in NPPES | Sep 8, 2020 |
| Certified by provider | Sep 8, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 006924 | AZ |
| Internal Medicine, Hematology & Oncology | 207RH0003X | N9156 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (AZ); Practitioner - Medical Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 680 |
|---|---|
| Services billed | 94,216 across 141 procedure codes |
| Paid by Medicare | $2,046,002 |
Part D prescriptions in 2024
| Prescriptions (claims) | 388 · 415 30-day fills |
|---|---|
| Patients | 84 |
| Total drug cost | $553,235 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of North Texas Hsc, College of Osteopathic Med |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Mayo Clinic ArizonaScottsdale, AZ · 1,626 clinicians
Hospital affiliation
- Mayo Clinic HospitalPhoenix, AZ
Industry payments (Open Payments)
- 2025$8,707 · 13 payments from 5 companies
- 2024$20,017 · 24 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exelixis Inc. | $4,827 | 9 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $2,538 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $1,082 | 1 |
| Incyte Corporation | $133.09 | 1 |
| Tempus Ai, Inc | $127.25 | 1 |
What the 2025 payments were for
- Consulting Fee$7,579 · 3 payments
- Food and Beverage$1,128 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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