NPPES file of Aug 9, 2026

Nicholas Peter Xenopoulos, MD

Interventional Cardiology Physician · Knoxville, TN

Nicholas Peter Xenopoulos, MD is an interventional cardiology physician with a practice address in Knoxville, Tennessee, and NPI 1568548006, issued on Oct 27, 2006. Check the license (Tennessee 39685, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568548006
Name
Nicholas Peter Xenopoulos
Credential
MD
Primary taxonomy
Interventional Cardiology Physician 207RI0011X
License numbers
39685 TN
01046596A IN
32179 KY
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 27, 2006
Record last updated
Apr 9, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(865) 539-5073
Medicaid IDs
200106000 IN
64321797 KY
Medicare enrollment
Enrolled (PECOS I20110520000323); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9330 Park West Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jeffrey Albea, MDNeurological Surgery Physician1548259906
  2. Albert Blacky, M.D.Interventional Cardiology Physician1699762252
  3. Mary Brooke, RDRegistered Dietitian1831173236
  4. Ronald Bryan, M.D.Specialist1366615734
  5. Rosalind Cadigan, M.D.Obstetrics & Gynecology Physician1912906991
  6. Cindy Caplan, DPMPodiatrist1912954710

Verify Nicholas Peter Xenopoulos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 39685
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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25% more Medicare Part D claims than the average interventional cardiology physician in 2024

3,971 Medicare Part D claims for 843 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Nicholas Xenopoulos3,971
  2. Specialty average3,179

Most prescribed

  1. Eliquis306 claims
  2. Losartan Potassium284 claims
  3. Rosuvastatin Calcium277 claims
  4. Clopidogrel271 claims
  5. Metoprolol Succinate224 claims
  6. Atorvastatin Calcium222 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.

The MIPS final score for 2023 (Medicare payment program): 79.4 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.6
  2. Costout of 100 · 30%41.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $41.62

2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nicholas Xenopoulos$41.62
  2. Specialty average$7,062.29

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

3 hospitals and group practices

  1. Leconte Medical CenterSevierville, TN · Acute Care Hospitals5 of 5 stars
  2. Parkwest Medical CenterKnoxville, TN · Acute Care Hospitals3 of 5 stars
  3. Covenant Medical Group IncKnoxville, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Nicholas Peter Xenopoulos among 215 interventional cardiology physician records in Tennessee

Nicholas Peter Xenopoulos, MD 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 2006, is newer than 22% of them.

  • NPI issued2006 · 22% of these records are older, 50% newer
  • In a Medicare fileYes · 95% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated1985 · median 2001 among the 187 with a school on file
  • Record last updated2021 · 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.

The 8 interventional cardiology physician records with the nearest ZIP codes

  1. Charles Allderdice, M.D.Knoxville, TN 379231104262096
  2. Albert Blacky, M.D.Knoxville, TN 379231699762252
  3. Jeremy Brooks, MDKnoxville, TN 379231861873879
  4. John Harper, M.D.Knoxville, TN 379231568452167
  5. Stephen Marietta, M.D.Knoxville, TN 379231053301606
  6. Sara Negrotto, MDKnoxville, TN 379231932456621
  7. Kirsten Raby, MDKnoxville, TN 379231750843470
  8. Ayaz Rahman, M.D.Knoxville, TN 379231881871374

Common questions

What is Nicholas Peter Xenopoulos, MD's NPI number?

Nicholas Peter Xenopoulos, MD's National Provider Identifier (NPI) is 1568548006, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas Peter Xenopoulos, MD 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 Nicholas Peter Xenopoulos, MD's license?

NPPES lists Tennessee license number 39685, 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 Nicholas Peter Xenopoulos, MD prescribe under Medicare Part D?

In 2024, Nicholas Peter Xenopoulos, MD had 3,971 Medicare Part D claims for 843 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.

What is Nicholas Peter Xenopoulos, MD's MIPS final score?

The 2023 MIPS final score is 79.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.