Grey Leonard, M.D.
Surgical Oncology Physician · Knoxville, TN
Grey Leonard, M.D. is a surgical oncology physician with a practice address in Knoxville, Tennessee, and NPI 1710374558, issued on Apr 20, 2015. Check the license (Tennessee 71574, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Grey Leonard
- Credential
- M.D.
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License numbers
- 71574 TN
2022-00592 NC
Self-reported in NPPES; status is on the state search - Practice location
- 1819 Clinch Ave Ste 200, Knoxville, TN 37916
- Phone
- (865) 524-3695
- Enumerated
- Apr 20, 2015
- Record last updated
- Jul 2, 2024
- Fax
- (865) 602-3528
- Medicare enrollment
- Enrolled (PECOS I20240717003919); accepts Medicare assignment
- Medical or professional school
- University Of South Florida College Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 62 in Tennessee → Look up another NPI →
Also registered at 1819 Clinch Ave Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Antiporda, M.D.Surgery Physician1083970669
- Elissa Falconer, M.D.Colon & Rectal Surgery Physician1619400546
- Wendy Heidel, FNPFamily Nurse Practitioner1083779193
- Sung Lee, MDColon & Rectal Surgery Physician1023499423
- Amanda Lindsey, FNP-CFamily Nurse Practitioner1629541990
- Madison Tipton, DNP, FNP-CFamily Nurse Practitioner1982522009
Verify Grey Leonard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 71574Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average surgical oncology physician in 2024
21 Medicare Part D claims for 18 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $21.81
1 payment: food and beverage; the largest payer was Intuitive Surgical, Inc. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Premier Surgical Associates PLLCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grey Leonard among 62 surgical oncology physician records in Tennessee
Grey Leonard, M.D. is one of 62 surgical oncology physician records with a practice address in Tennessee. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 84% of them.
- NPI issued2015 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2015 · median 2009 among the 46 with a school on file
- Record last updated2024 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in Tennessee
There are 62 surgical oncology physician records in Tennessee.
All 62 in Tennessee → Every provider in Knoxville → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Paul Dudrick, MDKnoxville, TN 379161710070479
- Troy Kimsey, M.D.Knoxville, TN 379161295908150
- Gregory Midis, M.D.Knoxville, TN 379161033226162
- David Roife, M.D.Knoxville, TN 379161326397761
- Ana Wilson, D.O.Knoxville, TN 379161154681138
- Laura Enomoto, MDKnoxville, TN 379201023338688
- Keith Gray, M.D.Knoxville, TN 379201235237843
- James Lewis, M.D.Knoxville, TN 379201053510586
Common questions
What is Grey Leonard, M.D.'s NPI number?
Grey Leonard, M.D.'s National Provider Identifier (NPI) is 1710374558, issued on Apr 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Grey Leonard, M.D. located?
The NPPES record lists a practice address at 1819 Clinch Ave Ste 200, Knoxville, TN, 37916. Phone: (865) 524-3695. Providers update this record themselves, so call before visiting.
How can I verify Grey Leonard, M.D.'s license?
NPPES lists Tennessee license number 71574, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grey Leonard, M.D. prescribe under Medicare Part D?
In 2024, Grey Leonard, M.D. had 21 Medicare Part D claims for 18 beneficiaries; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.