Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Nathan David Cass, MD

Individual provider Otolaryngology Physician · NPI 1518385566

Nathan David Cass, MD practises Otolaryngology in Lexington, Kentucky. Graduated from Ohio State University College of Medicine in 2014, 12 years ago. Practices with Kentucky Medical Services Foundation, Inc, a 952-clinician group and accepts Medicare assignment. Licensed in Kentucky and Michigan.

Years since qualifying
12
Trained at
Ohio State University College of Medicine
Licensed in
KY, MI
In the registry since
2014
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

740 S Limestone St
Lexington, KY 40536-1054
Phone: (859) 257-5405
Fax: (859) 323-5483
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otology & Neurotology Physician (primary) Taxonomy 207YX0901X · Licence 56685 (KY)
Otolaryngology Physician Taxonomy 207Y00000X · Licence 4301119066 (MI)

Record details

NPI number1518385566
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2014
Last updated in NPPESJune 20, 2022
Certification dateJune 20, 2022

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Kentucky Medical Services Foundation, Inc — 952 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients208
Services billed 640 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Travel and Lodging $1,935 6 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $744 10 payments · a meal or drink at a meeting or visit, 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.

Colleagues at Kentucky Medical Services Foundation, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 952 clinicians in the practice; 12 are shown here.

Other providers in Lexington