NPPES file of Aug 9, 2026

Justin Thankachan, M.D.

Internal Medicine Physician · Tulsa, OK

Justin Thankachan, M.D. is an internal medicine physician with a practice address in Tulsa, Oklahoma, and NPI 1851433221, issued on Feb 13, 2007. Check the license (Oklahoma 24623, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; 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
1851433221
Name
Justin Thankachan
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
24623 OK
Self-reported in NPPES; status is on the state search
Practice location
1120 S Utica Ave, Tulsa, OK 74104
Phone
(918) 579-1000
Enumerated
Feb 13, 2007
Record last updated
Feb 16, 2026
Medicaid ID
200201520A OK
Medicare enrollment
Enrolled (PECOS I20190403002330); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 2005
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 1120 S Utica Ave

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

  1. Cassandra AdamsCritical Care Medicine Nurse Practitioner1073451621
  2. Kathryn Adams, PT, DPTPhysical Therapist1477266781
  3. Omotade Ademoye, APRNAcute Care Nurse Practitioner1073222055
  4. Kelechi Agu, MDEmergency Medicine Physician1831686526
  5. Joseph Aguero, APRN-CNPNurse Practitioner1912724501
  6. Clinton AlsupCertified Registered Nurse Anesthetist1013451939

Verify Justin Thankachan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 24623
    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 Oklahoma 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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91% fewer Medicare Part D claims than the average internal medicine physician in 2024

291 Medicare Part D claims for 70 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Justin Thankachan291
  2. Specialty average3,176

Most prescribed

  1. Clopidogrel84 claims
  2. Atorvastatin Calcium52 claims
  3. Brilinta31 claims
  4. Eliquis24 claims
  5. Hydralazine Hcl21 claims
  6. Rosuvastatin Calcium18 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): 97.6 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 score86.5
  2. Costnot scored (reweighted)
  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).

Bills Medicare through 3 group practices

  1. Ahs Oklahoma Physician Group LLCTulsa, OK
  2. Cherokee NationTahlequah, OK
  3. Creek Nation Hospital And ClinicsTulsa, OK

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

Justin Thankachan among 1,115 internal medicine physician records in Oklahoma

Justin Thankachan, M.D. is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 50% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2005 · median 2007 among the 653 with a school on file
  • Record last updated2026 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

307 internal medicine physician records list a practice address in Tulsa

They are 307 of the 18,643 NPPES records with a practice address in Tulsa, and 1,115 internal medicine physician records in Oklahoma.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Robert Cossman, M.D.Tulsa, OK 741041184627325
  2. Jon Cox, M.D.Tulsa, OK 741041114996741
  3. Janis Finer, M.D.Tulsa, OK 741041326017328
  4. Christine Franden, M.D.Tulsa, OK 741041669459160
  5. Linda Goldenstern, M.D.Tulsa, OK 741041205805835
  6. Andrew Gordon, M.D.Tulsa, OK 741041447228549
  7. Paul Hendrix, M.D.Tulsa, OK 741041306848692
  8. Erick Hill, M.D.Tulsa, OK 741041508835281

Common questions

What is Justin Thankachan, M.D.'s NPI number?

Justin Thankachan, M.D.'s National Provider Identifier (NPI) is 1851433221, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Justin Thankachan, M.D. located?

The NPPES record lists a practice address at 1120 S Utica Ave, Tulsa, OK, 74104. Phone: (918) 579-1000. Providers update this record themselves, so call before visiting.

How can I verify Justin Thankachan, M.D.'s license?

NPPES lists Oklahoma license number 24623, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Justin Thankachan, M.D. prescribe under Medicare Part D?

In 2024, Justin Thankachan, M.D. had 291 Medicare Part D claims for 70 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Justin Thankachan, M.D.'s MIPS final score?

The 2023 MIPS final score is 97.6 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.