NPPES file of Aug 9, 2026

Kajan Mahadevan, MD

Internal Medicine Physician · Johnson City, TN

Kajan Mahadevan, MD is an internal medicine physician with a practice address in Johnson City, Tennessee, and NPI 1972164580, issued on Jun 25, 2019. Check the license (Tennessee 65585, 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
1972164580
Name
Kajan Mahadevan
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
65585 TN
Self-reported in NPPES; status is on the state search
Practice location
Lamont St & Veterans Way, Johnson City, TN 37604
Phone
(423) 926-1171
Enumerated
Jun 25, 2019
Record last updated
Jul 11, 2022
Medicare enrollment
Enrolled (PECOS I20220713003945); 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 Lamont St & Veterans Way

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

  1. Russell Allison, PHARMDPharmacist1922585090
  2. Crystal Bright, RNRegistered Nurse1306707534
  3. Deanna Golden, MS, RDRegistered Dietitian1023791043
  4. Mariah McKinney, PHARMDPharmacist1154056521
  5. Colby Osborne, PHARM.D.Pharmacist1538943774
  6. Stephanie Panoncillo, AUDAudiologist1932941127

Verify Kajan Mahadevan 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 65585
    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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83% fewer Medicare Part D claims than the average internal medicine physician in 2024

534 Medicare Part D claims for 199 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 25 claims were for opioids.

  1. Kajan Mahadevan534
  2. Specialty average3,176

Most prescribed

  1. Doxycycline Monohydrate41 claims
  2. Cefdinir35 claims
  3. Prednisone34 claims
  4. Levofloxacin32 claims
  5. Pantoprazole Sodium29 claims
  6. Metoprolol Tartrate27 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

  1. Southeastern Physician Services PCPowell, TN

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

125 internal medicine physician records list a practice address in Johnson City

They are 125 of the 3,807 NPPES records with a practice address in Johnson City, and 2,596 internal medicine physician records in Tennessee.

Other internal medicine physician records in Tennessee

  1. John Aaron, MDClarksville, TN1629019922
  2. Damon Abaray, MDNashville, TN1275680134
  3. Samuel Abbas, MDHixson, TN1497105373
  4. Matthew Abbate, MDNashville, TN1982796306
  5. Sarmed Abdullah, M.D.Lexington, TN1588755359
  6. Temidayo Abe, MDNashville, TN1366947798
  7. Ahad Abid, MDNashville, TN1316500176
  8. Mouna Abouamara, MDJohnson City, TN1447324603
  9. Betty Abraham, MDChattanooga, TN1093923633
  10. Rawan Abu-Zeitoon, M.DKingsport, TN1265621072

Common questions

What is Kajan Mahadevan, MD's NPI number?

Kajan Mahadevan, MD's National Provider Identifier (NPI) is 1972164580, issued on Jun 25, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Kajan Mahadevan, MD located?

The NPPES record lists a practice address at Lamont St & Veterans Way, Johnson City, TN, 37604. Phone: (423) 926-1171. Providers update this record themselves, so call before visiting.

How can I verify Kajan Mahadevan, MD's license?

NPPES lists Tennessee license number 65585, 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 Kajan Mahadevan, MD prescribe under Medicare Part D?

In 2024, Kajan Mahadevan, MD had 534 Medicare Part D claims for 199 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.