Holli Ann Horak, M.D.
NPI 1578592036ActiveIndividual· Psychiatry & Neurology, Neurology· Tucson, AZ
Psychiatry & Neurology, Neurology (M.D.) in Tucson, Arizona, trained at Ohio State University College of Medicine (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $6,281,551 for 1,258 claims, against $35,512 paid for services in 2024. Biogen, Inc. was the largest of 3 companies reporting payments in 2025, $338.31 in all, mostly education.
Overview
| NPI | 1578592036 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 30, 2006 |
| Last updated in NPPES | Dec 5, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | MD42553 | AZ |
| Psychiatry & Neurology, Neurology | 2084N0400X | 35069379 | OH |
| Psychiatry & Neurology, Neurology | 2084N0400X | IN01049956A | IN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 274 |
|---|---|
| Services billed | 596 across 23 procedure codes |
| Paid by Medicare | $35,512 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,258 · 2,540 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $6,281,551 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Neurology |
Medical group
- Banner-University Medical GroupTucson, AZ · 1,072 clinicians
Hospital affiliations
- Banner - University Medical Center Tucson CampusTucson, AZ
- Banner-University Medical Center South CampusTucson, AZ
Other facilities
- Bayada Home Health Care, IncHome health agency · Tucson, AZ
- Bayada Home Health Care, IncHome health agency · Tucson, AZ
Industry payments (Open Payments)
- 2025$338.31 · 4 payments from 3 companies
- 2024$230.76 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biogen, Inc. | $184.00 | 2 |
| Astrazeneca Uk Limited | $134.91 | 1 |
| Abbvie Inc. | $19.40 | 1 |
What the 2025 payments were for
- Education$184.00 · 2 payments
- Food and Beverage$154.31 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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