Stephen Marietta, M.D.
Interventional Cardiology Physician · Knoxville, TN
Stephen Marietta, M.D. is an interventional cardiology physician with a practice address in Knoxville, Tennessee, and NPI 1053301606, issued on Oct 25, 2005. Check the license (Tennessee 16657, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Stephen Marietta
- Credential
- M.D.
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- 16657 TN
Self-reported in NPPES; status is on the state search - Practice location
- 9330 Park West Blvd, Knoxville, TN 37923
- Phone
- (865) 691-4850
- Enumerated
- Oct 25, 2005
- Record last updated
- Aug 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (865) 694-8018
- Medicare enrollment
- Enrolled (PECOS I20040607001223); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 1979
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 215 in Tennessee → Look up another NPI →
Also registered at 9330 Park West Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen Marietta in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 16657Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
1,259 Medicare Part D claims for 330 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Eliquis222 claims
- Metoprolol Succinate118 claims
- Clopidogrel115 claims
- Amiodarone Hcl107 claims
- Spironolactone80 claims
- Metoprolol Tartrate73 claims
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.
Bills Medicare through one group practice
- Covenant Medical Group IncLoudon, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Marietta among 215 interventional cardiology physician records in Tennessee
Stephen Marietta, M.D. is one of 215 interventional cardiology physician records with a practice address in Tennessee. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 78% newer
- In a Medicare fileYes · 95% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated1979 · median 2001 among the 187 with a school on file
- Record last updated2020 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in Tennessee
There are 215 interventional cardiology physician records in Tennessee.
All 215 in Tennessee → Every provider in Knoxville → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Charles Allderdice, M.D.Knoxville, TN 379231104262096
- Albert Blacky, M.D.Knoxville, TN 379231699762252
- Jeremy Brooks, MDKnoxville, TN 379231861873879
- John Harper, M.D.Knoxville, TN 379231568452167
- Sara Negrotto, MDKnoxville, TN 379231932456621
- Kirsten Raby, MDKnoxville, TN 379231750843470
- Ayaz Rahman, M.D.Knoxville, TN 379231881871374
- Mitchell Weiss, M.D.Knoxville, TN 379231316902687
Common questions
What is Stephen Marietta, M.D.'s NPI number?
Stephen Marietta, M.D.'s National Provider Identifier (NPI) is 1053301606, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Marietta, M.D. located?
The NPPES record lists a practice address at 9330 Park West Blvd, Knoxville, TN, 37923. Phone: (865) 691-4850. Providers update this record themselves, so call before visiting.
How can I verify Stephen Marietta, M.D.'s license?
NPPES lists Tennessee license number 16657, 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 Stephen Marietta, M.D. prescribe under Medicare Part D?
In 2024, Stephen Marietta, M.D. had 1,259 Medicare Part D claims for 330 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. 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.