Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mark Garretson, PMHNP-BC, APRN

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1538694617

Mark Garretson, PMHNP-BC, APRN is a Nurse Practitioner in Fairlawn, Ohio. Qualified in 2018, 8 years ago. Practices with Ascend Health Center, LLC, an 8-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Ohio.

Years since qualifying
8
Licensed in
OH
In the registry since
2017
What do these letters mean?
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

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Practice location Address checks out

1000 S Cleveland Massillon Rd Ste 1
Fairlawn, OH 44333-9204
Phone: (330) 754-4844
Fax: (833) 974-2062
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence APRN.CNP.022430 (OH)

Record details

NPI number1538694617
Entity typeIndividual (Type 1)
GenderMale
Credentials PMHNP-BC , APRN
Sole proprietorNo
NPI enumeratedApril 26, 2017
Last updated in NPPESApril 13, 2026
Certification dateApril 13, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Ascend Health Center, Llc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients23
Services billed 166 a service is one billed item, such as a visit, a test or a procedure
Average patient age61

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $3,813 147 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $115 1 payment

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Ascend Health Center, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Fairlawn