Doctor profile · Federal record

Dr. Grey Leonard, M.D.

Surgical Oncology Physician (CMS: Surgical Oncology) · Surgery Physician · Knoxville, TN

  • NPI 1710374558
  • Accepts Medicare
  • 11 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1819 Clinch Ave Ste 200
Knoxville, TN 379162435
(865) 524-3695
fax (865) 602-3528
Mailing address
Po Box 52948
Knoxville, TN 379502948

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
July 2, 2024
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
2086X0206X — NUCC code
State licenses (2)
Tennessee #71574 · North Carolina #2022-00592

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1710374558. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$22
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 1 $21.81

By nature of payment

Food and Beverage
$22

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Grey Leonard's medical specialty?
Dr. Grey Leonard practices Surgical Oncology Physician in Knoxville, TN.
Where does Dr. Grey Leonard practice?
Dr. Grey Leonard practices at 1819 Clinch Ave Ste 200, Knoxville, TN 379162435. Office phone: 8655243695.
What is Dr. Grey Leonard's NPI?
Dr. Grey Leonard's National Provider Identifier (NPI) is 1710374558, issued by NPPES.
Does Dr. Grey Leonard accept Medicare assignment?
Yes. Dr. Grey Leonard accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.