UNIVERSITY HEALTH SYSTEM INC
UNIVERSITY HEALTH SYSTEM INC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1821637489, based in Knoxville, TN. The organization lists 12 taxonomy classifications, with Cardiovascular Disease Physician recorded as primary.
Getting there
The practice address on file is 1940 ALCOA HWY STE E310, Knoxville, TN 37920. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Cardiovascular Disease covers
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms. NUCC Health Care Provider Taxonomy, code 207RC0000X
All registered taxonomy codes
This provider registers 12 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207RC0000X | Cardiovascular Disease Physician Cardiovascular Disease | — | — | primary |
| 207RC0001X | Clinical Cardiac Electrophysiology Physician Clinical Cardiac Electrophysiology | — | — | |
| 2080P0202X | Pediatric Cardiology Physician Pediatric Cardiology | — | — | |
| 363LF0000X | Family Nurse Practitioner Family | — | — | |
| 363L00000X | Nurse Practitioner | — | — | |
| 363LC0200X | Critical Care Medicine Nurse Practitioner Critical Care Medicine | — | — | |
| 363LA2100X | Acute Care Nurse Practitioner Acute Care | — | — | |
| 363LA2200X | Adult Health Nurse Practitioner Adult Health | — | — | |
| 207RA0001X | Advanced Heart Failure and Transplant Cardiology Physician Advanced Heart Failure and Transplant Cardiology | — | — | |
| 363A00000X | Physician Assistant | — | — | |
| 207RI0011X | Interventional Cardiology Physician Interventional Cardiology | — | — | |
| 364S00000X | Clinical Nurse Specialist | — | — |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1821637489 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Dec 31, 2019 |
| Last updated | Jan 12, 2026 |
| Status | Active |
| Practice address |
1940 ALCOA HWY STE E310 Knoxville, TN 37920 (865) 544-2800 Fax (865) 544-6812 |
| Mailing address |
PO BOX 415000-MSC8179 Nashville, TN 37241 |
| Other identifiers |
Q054431
· Medicaid (TN) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 2 | 1 | 6 | 3 | 7 | 4 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 4 | 1 | 3 | 3 | 5 | 4 | 7 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.