NPPES file of Aug 9, 2026

John Thomas Galdamez, D.O.

Critical Care Medicine (Internal Medicine) Physician · Tahlequah, OK

John Thomas Galdamez, D.O. is a critical care medicine (internal medicine) physician with a practice address in Tahlequah, Oklahoma, and NPI 1275641367, issued on Aug 28, 2006. Check the license (Oklahoma 2918, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275641367
Name
John Thomas Galdamez
Credential
D.O.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
2918 OK
Self-reported in NPPES; status is on the state search
Practice location
1400 E Downing St, Tahlequah, OK 74464
Phone
(918) 456-0641
Enumerated
Aug 28, 2006
Record last updated
Sep 7, 2023
Fax
(918) 453-2359
Medicaid ID
100006330A OK
Medicare enrollment
Enrolled (PECOS I20100825001169); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 1975
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 1400 E Downing St

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

  1. Jason Ballew, MDAddiction Medicine (Preventive Medicine) Physician1235146036
  2. Faryal Bhatti, MBBSStudent in an Organized Health Care Education/Training Program1407642705
  3. Celeste Bidwell, APRNAcute Care Nurse Practitioner1184394751
  4. Pakeezah BisharatStudent in an Organized Health Care Education/Training Program1639924822
  5. Blair Brown, DOInternal Medicine Physician1407421027
  6. Stephen Burton, M.D.Neurology Physician1497735740

Verify John Thomas Galdamez 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 2918
    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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5.1 times the Medicare Part D claims of the average critical care medicine (internal medicine) physician in 2024

3,533 Medicare Part D claims for 78 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. John Galdamez3,533
  2. Specialty average696

Most prescribed

  1. Pantoprazole Sodium249 claims
  2. Levothyroxine Sodium162 claims
  3. Furosemide161 claims
  4. Amlodipine Besylate138 claims
  5. Lisinopril127 claims
  6. Gabapentin106 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. Tahlequah Medical Group LLCTahlequah, OK

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

John Thomas Galdamez among 38 critical care medicine (internal medicine) physician records in Oklahoma

John Thomas Galdamez, D.O. is one of 38 critical care medicine (internal medicine) physician records with a practice address in Oklahoma. 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 50% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 84% of these records are
  • Graduated1975 · median 2001 among the 32 with a school on file
  • Record last updated2023 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Oklahoma

There are 38 critical care medicine (internal medicine) physician records in Oklahoma.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Nicole Cossaart, M.D.McAlester, OK 745011821048851
  2. Rodney Beasley, MDTulsa, OK 741361023019304
  3. Sanchit ChawlaTulsa, OK 741361073165833
  4. Ali Cheema, M.D.Tulsa, OK 741361154740645
  5. Zed Seedat, MDTulsa, OK 741361023513264
  6. Haik Yanashyan, M.D.Tulsa, OK 741361619380433
  7. Larry Ladi, MDTulsa, OK 741331306897301
  8. Sudheer Nambiar, MDTulsa, OK 741331588858914

Common questions

What is John Thomas Galdamez, D.O.'s NPI number?

John Thomas Galdamez, D.O.'s National Provider Identifier (NPI) is 1275641367, issued on Aug 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Thomas Galdamez, D.O. located?

The NPPES record lists a practice address at 1400 E Downing St, Tahlequah, OK, 74464. Phone: (918) 456-0641. Providers update this record themselves, so call before visiting.

How can I verify John Thomas Galdamez, D.O.'s license?

NPPES lists Oklahoma license number 2918, 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 John Thomas Galdamez, D.O. prescribe under Medicare Part D?

In 2024, John Thomas Galdamez, D.O. had 3,533 Medicare Part D claims for 78 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.