Mark Garretson, PMHNP-BC, APRN
NPI 1538694617ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Fairlawn, OH
Nurse Practitioner, Psych/Mental Health (PMHNP-BC, APRN) with Ascend Health Center, LLC, practicing in Fairlawn, Ohio. Their prescriptions cost Medicare Part D more than their services did: $631,233 for 1,268 claims, against $9,628 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 12 companies reporting payments in 2025, $3,928 in all, mostly food and beverage.
Overview
| NPI | 1538694617 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP-BC, APRN |
| Sole proprietor | No |
| NPI issued | Apr 26, 2017 |
| Last updated in NPPES | Apr 13, 2026 |
| Certified by provider | Apr 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | APRN.CNP.022430 | OH |
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 - Nurse Practitioner (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 166 across 6 procedure codes |
| Paid by Medicare | $9,628 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,268 · 1,604 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $631,233 |
| Generic share | 63% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Ascend Health Center, LLCFairlawn, OH · 8 clinicians
Industry payments (Open Payments)
- 2025$3,928 · 148 payments from 12 companies
- 2024$3,542 · 111 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $935.24 | 23 |
| E.R. Squibb & Sons, L.L.C. | $835.98 | 26 |
| Vanda Pharmaceuticals Inc. | $445.33 | 17 |
| Abbvie Inc. | $429.91 | 25 |
| Alkermes, Inc. | $386.41 | 16 |
What the 2025 payments were for
- Food and Beverage$3,813 · 147 payments
- Consulting Fee$115.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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