NPPES file of Aug 9, 2026

Diandra Norelle Ayala-Peacock, MD

Radiation Oncology Physician · Nashville, TN

Diandra Norelle Ayala-Peacock, MD is a radiation oncology physician with a practice address in Nashville, Tennessee, and NPI 1558682336, issued on Jun 16, 2010. Check the license (Tennessee MD52992, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558682336
Name
Diandra Norelle Ayala-Peacock
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
MD52992 TN
Self-reported in NPPES; status is on the state search
Practice location
3601 Tvc, Nashville, TN 37232
Phone
(615) 322-3000
Enumerated
Jun 16, 2010
Record last updated
Aug 24, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200327000402); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 3601 Tvc

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

  1. Matthew Abbate, MDInternal Medicine Physician1982796306
  2. Ty Abel, MDAnatomic Pathology & Clinical Pathology Physician1720175854
  3. Robert Abraham, MDClinical Cardiac Electrophysiology Physician1285781161
  4. Thomas Abramo, MDPediatric Emergency Medicine (Pediatrics) Physician1629165758
  5. Tarek Absi, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1578647681
  6. Lealani Acosta, MDNeurology Physician1003019902

Verify Diandra Norelle Ayala-Peacock 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 MD52992
    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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73% fewer Medicare Part D claims than the average radiation oncology physician in 2024

36 Medicare Part D claims for 26 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Diandra Ayala-Peacock36
  2. Specialty average134

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

  1. Duke Health Integrated Practice IncDurham, NC

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

Diandra Norelle Ayala-Peacock among 132 radiation oncology physician records in Tennessee

Diandra Norelle Ayala-Peacock, MD is one of 132 radiation oncology physician records with a practice address in Tennessee. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 67% of them.

  • NPI issued2010 · 67% of these records are older, 29% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2010 · median 2005 among the 98 with a school on file
  • Record last updated2015 · 52% 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 Tennessee 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 Tennessee

There are 132 radiation oncology physician records in Tennessee.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Anuradha ChakravarthyNashville, TN 372321164506275
  2. Han-Chih Chang, M.D.Nashville, TN 372321790776755
  3. Anthony Cmelak, MDNashville, TN 372321912099334
  4. Mersiha Hadziahmetovic, M.D.Nashville, TN 372321932369279
  5. Corbin Johnson, MDNashville, TN 372321154359289
  6. Dong Kim, M.D.Nashville, TN 372321861422420
  7. Austin Kirschner, M.D., PH.D.Nashville, TN 372321891927208
  8. Arnold Malcolm, MDNashville, TN 372321568554996

Common questions

What is Diandra Norelle Ayala-Peacock, MD's NPI number?

Diandra Norelle Ayala-Peacock, MD's National Provider Identifier (NPI) is 1558682336, issued on Jun 16, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Diandra Norelle Ayala-Peacock, MD located?

The NPPES record lists a practice address at 3601 Tvc, Nashville, TN, 37232. Phone: (615) 322-3000. Providers update this record themselves, so call before visiting.

How can I verify Diandra Norelle Ayala-Peacock, MD's license?

NPPES lists Tennessee license number MD52992, 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 Diandra Norelle Ayala-Peacock, MD prescribe under Medicare Part D?

In 2024, Diandra Norelle Ayala-Peacock, MD had 36 Medicare Part D claims for 26 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.