NPPES file of Aug 9, 2026

Steven Sean Callahan, PH.D.

Clinical Psychologist · Houston, TX

Steven Sean Callahan, PH.D. is a clinical psychologist with a practice address in Houston, Texas, and NPI 1275677643, issued on Feb 17, 2007. Check the license (Texas 22630, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275677643
Name
Steven Sean Callahan
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
22630 TX
Self-reported in NPPES; status is on the state search
Practice location
2450 Fondren RD Ste 312, Houston, TX 77063
Phone
(713) 789-7560
Enumerated
Feb 17, 2007
Record last updated
Jul 6, 2026
Fax
(713) 789-7351
Medicare enrollment
Enrolled (PECOS I20241210003127); 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.
Download card Updates feed

8 nearest clinical psychologist records → All 2,732 in Texas → Look up another NPI →

Also registered at 2450 Fondren RD Ste 312

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

  1. Steve Caloudas, LPCounseling Psychologist1598152977
  2. Jennifer Cina, PHDClinical Psychologist1457680860
  3. Stephanie Claudio, LMSWClinical Social Worker1770217945
  4. Andrea Estrada, LPCMental Health Counselor1386245058
  5. Jonathon FloresMental Health Counselor1790408508
  6. Aldra Forrester-Sykes, PSYDClinical Psychologist1861335341

Verify Steven Sean Callahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 22630    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
Find the Texas 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through 2 group practices

  1. Cpf Sjn Outpatient LLCHouston, TX
  2. Dr Glenn J Bricken And Assoc P COmaha, NE

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

Steven Sean Callahan among 2,732 clinical psychologist records in Texas

Steven Sean Callahan, PH.D. is one of 2,732 clinical psychologist records with a practice address in Texas. 14% 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 28% of them.

  • NPI issued2007 · 28% of these records are older, 58% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 22% of these records are
  • Graduated1981 · median 2006 among the 598 with a school on file
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in Texas

There are 2,732 clinical psychologist records in Texas.

All 2,732 in Texas → Every provider in Houston → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Kristin AlbrechtHouston, TX 770631093187551
  2. Rebecca Boren, PHDHouston, TX 770631144746991
  3. Betty Cartmell, PH.D.Houston, TX 770631184746653
  4. Jennifer Cina, PHDHouston, TX 770631457680860
  5. Matthew LeddyHouston, TX 770631396872883
  6. Carlos Mazas, PH.D.Houston, TX 770631154695484
  7. Stuart Nathan, PH.D.Houston, TX 770631700883626
  8. Jay Solomon, PHDHouston, TX 770631467517029

Common questions

What is Steven Sean Callahan, PH.D.'s NPI number?

Steven Sean Callahan, PH.D.'s National Provider Identifier (NPI) is 1275677643, issued on Feb 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Steven Sean Callahan, PH.D. located?

The NPPES record lists a practice address at 2450 Fondren RD Ste 312, Houston, TX, 77063. Phone: (713) 789-7560. Providers update this record themselves, so call before visiting.

How can I verify Steven Sean Callahan, PH.D.'s license?

NPPES lists Texas license number 22630, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.