Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary Katherine Demboske, CNP

Individual provider Gerontology Nurse Practitioner · NPI 1699346031

Mary Katherine Demboske, CNP is a Nurse Practitioner in Sandusky, Ohio. Graduated from Ohio State University College of Medicine in 2021, 5 years ago. Practices with North Coast Professional Company, LLC, a 104-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Ohio.

Years since qualifying
5
Trained at
Ohio State University College of Medicine
Licensed in
OH
In the registry since
2021
What do these letters mean?
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

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Practice location Address checks out

701 Tyler St
Sandusky, OH 44870-3321
Phone: (419) 557-7480
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gerontology Nurse Practitioner (primary) Taxonomy 363LG0600X · Licence APRN.CNP.0029217 (OH)

Record details

NPI number1699346031
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNP
Sole proprietorNo
NPI enumeratedJuly 7, 2021
Last updated in NPPESJanuary 4, 2022
Certification dateJanuary 4, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice North Coast Professional Company, Llc — 104 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients312
Services billed 483 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 $492 21 payments · a meal or drink at a meeting or visit, not a fee
Education $100 1 payment · educational material or training, not a fee

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at North Coast Professional Company, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 104 clinicians in the practice; 12 are shown here.

Other providers in Sandusky