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

Mary Susan Isaac, ANP

Individual provider Family Nurse Practitioner · NPI 1538143961

Mary Susan Isaac, ANP is a Nurse Practitioner in Knoxville, Tennessee. Qualified in 2005, 21 years ago. Practices with Uhs Primary Care LLC, a 92-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Tennessee.

Years since qualifying
21
Licensed in
TN
In the registry since
2005
Specialties on file
2
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Practice location Address checks out

7503 S Northshore Dr
Knoxville, TN 37919-8002 Not confirmed with CMS for 13 years — call before visiting
Phone: (865) 531-1300
Fax: (865) 470-9190
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

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 11625 (TN)
Registered Nurse Taxonomy 163W00000X · Licence 145963 (TN)

Record details

NPI number1538143961
Entity typeIndividual (Type 1)
GenderFemale
Credentials ANP
Sole proprietorNo
NPI enumeratedNovember 30, 2005
Last updated in NPPESAugust 14, 2013

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Uhs Primary Care Llc — 92 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 patients128
Services billed 280 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 $879 45 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 Uhs Primary Care LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 92 clinicians in the practice; 12 are shown here.

Other providers in Knoxville