NPPES file of Aug 9, 2026

Thomas Callahan, D.O.

Family Medicine Physician · Phoenix, AZ

Thomas Callahan, D.O. is a family medicine physician with a practice address in Phoenix, Arizona, and NPI 1164861027, issued on Jun 24, 2013. Check the license (Arizona R2288, as entered in NPPES) on the Arizona Medical Board; 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
1164861027
Name
Thomas Callahan
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
R2288 AZ
Self-reported in NPPES; status is on the state search
Practice location
2927 N 7TH Ave, Phoenix, AZ 85013
Phone
(602) 406-3153
Enumerated
Jun 24, 2013
Record last updated
Apr 12, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(602) 406-7176
Medicare enrollment
Enrolled (PECOS I20160504001930); 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 2927 N 7TH Ave

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

  1. Richard Blinkhorn, M.D.Infectious Disease Physician1568575827
  2. Cheridy Clement, LMSWSocial Worker1669040051
  3. Randi Colbert, DOFamily Medicine Physician1518549880
  4. Allison Crain, M.D.Family Medicine Physician1518221597
  5. Cheryl Cruz, M.D.Family Medicine Physician1366628109
  6. Jeffrey Curtis, MD, MPHFamily Medicine Physician1144318700

Verify Thomas Callahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license R2288
    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 Arizona 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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3.4 times the Medicare Part D claims of the average family medicine physician in 2024

12,142 Medicare Part D claims for 974 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 184 claims were for opioids.

  1. Thomas Callahan12,142
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium548 claims
  2. Levothyroxine Sodium497 claims
  3. Lisinopril422 claims
  4. Omeprazole399 claims
  5. Losartan Potassium342 claims
  6. Rosuvastatin Calcium319 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.

Industry payments in 2024: $1,159.92

61 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Callahan$1,159.92
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Callahan Clinic, PCSt George, UT

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

Thomas Callahan among 3,119 family medicine physician records in Arizona

Thomas Callahan, D.O. is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 69% of them.

  • NPI issued2013 · 69% of these records are older, 29% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2013 · median 2006 among the 1,775 with a school on file
  • Record last updated2016 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

649 family medicine physician records list a practice address in Phoenix

They are 649 of the 31,399 NPPES records with a practice address in Phoenix, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. Jeffrey Curtis, MD, MPHPhoenix, AZ 850131144318700
  2. William Ellert, MDPhoenix, AZ 850131861449167
  3. Kenneth Fisher, MDPhoenix, AZ 850131780761957
  4. Robert Garcia, M.D.Phoenix, AZ 850131356454227
  5. Vincent Goux, M.D.Phoenix, AZ 850131598703217
  6. Douglas Jones, M.D.Phoenix, AZ 850131952410904
  7. Carlos Lopez, M.D.Phoenix, AZ 850131952309320
  8. Roberta Matern, MDPhoenix, AZ 850131215984349

Common questions

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

Thomas Callahan, D.O.'s National Provider Identifier (NPI) is 1164861027, issued on Jun 24, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Callahan, D.O. located?

The NPPES record lists a practice address at 2927 N 7TH Ave, Phoenix, AZ, 85013. Phone: (602) 406-3153. Providers update this record themselves, so call before visiting.

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

NPPES lists Arizona license number R2288, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas Callahan, D.O. prescribe under Medicare Part D?

In 2024, Thomas Callahan, D.O. had 12,142 Medicare Part D claims for 974 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.