NPPES file of Aug 9, 2026

Peter E. Locken, M.D.

Radiation Oncology Physician · Paducah, KY

Peter E. Locken, M.D. is a radiation oncology physician with a practice address in Paducah, Kentucky, and NPI 1396837159, issued on Sep 29, 2006. Check the license (Kentucky MD25356, as entered in NPPES) on the Kentucky Board of Medical Licensure; 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
1396837159
Name
Peter E. Locken
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
MD25356 KY
Self-reported in NPPES; status is on the state search
Practice location
2501 Kentucky Ave, Paducah, KY 42003
Phone
(270) 575-2780
Enumerated
Sep 29, 2006
Record last updated
Dec 6, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
64253560 KY
Medicare enrollment
Enrolled (PECOS I20111026000807); accepts Medicare assignment
Medical or professional school
University Of North Dakota School Of Medicine, 1986
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 2501 Kentucky Ave

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

  1. Katherine Arenz, D.O.Family Medicine Physician1043460751
  2. Kenneth Baker, BSN, RNContinuing Education/Staff Development Registered Nurse1568242659
  3. Bailey Bassi, FNP-CFamily Nurse Practitioner1952054686
  4. Michalyne Bassi, CRNACertified Registered Nurse Anesthetist1780946855
  5. Jennifer Brien, MDDiagnostic Radiology Physician1831173442
  6. Kristen Carper, CRNACertified Registered Nurse Anesthetist1467977678

Verify Peter E. Locken in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license MD25356
    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 Kentucky 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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89% more Medicare Part D claims than the average radiation oncology physician in 2024

253 Medicare Part D claims for 75 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 128 claims were for opioids.

  1. Peter Locken253
  2. Specialty average134

Most prescribed

  1. Hydrocodone-Acetaminophen47 claims
  2. Lidocaine Hcl Viscous34 claims
  3. Oxycodone-Acetaminophen32 claims
  4. Fentanyl18 claims
  5. Diazepam16 claims
  6. Lorazepam14 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Bills Medicare through one group practice

  1. Baptist Health Medical Group IncPaducah, KY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter E. Locken among 88 radiation oncology physician records in Kentucky

Peter E. Locken, M.D. is one of 88 radiation oncology physician records with a practice address in Kentucky. 89% 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 23% of them.

  • NPI issued2006 · 23% of these records are older, 44% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated1986 · median 2004 among the 68 with a school on file
  • Record last updated2013 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Kentucky

There are 88 radiation oncology physician records in Kentucky.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Alexander Diaz, MD, PHDPaducah, KY 420031962908889
  2. Barry Driver, M.D.Paducah, KY 420031578566055
  3. Evans AmoahBowling Green, KY 421011043772445
  4. Richard McGahan, MDBowling Green, KY 421041134181993
  5. William Tyree, M.D.Glasgow, KY 421411205835683
  6. Michael Murray, M.D.Hopkinsville, KY 422401689670085
  7. Ryan Abel, MDOwensboro, KY 423031437385770
  8. Patrick Newbury, MDOwensboro, KY 423031205490281

Common questions

What is Peter E. Locken, M.D.'s NPI number?

Peter E. Locken, M.D.'s National Provider Identifier (NPI) is 1396837159, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter E. Locken, M.D. located?

The NPPES record lists a practice address at 2501 Kentucky Ave, Paducah, KY, 42003. Phone: (270) 575-2780. Providers update this record themselves, so call before visiting.

How can I verify Peter E. Locken, M.D.'s license?

NPPES lists Kentucky license number MD25356, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Peter E. Locken, M.D. prescribe under Medicare Part D?

In 2024, Peter E. Locken, M.D. had 253 Medicare Part D claims for 75 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Peter E. Locken, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.