NPPES file of Aug 9, 2026

Thomas Lawson Windham, PHD

Clinical Psychologist · Boulder, CO

Thomas Lawson Windham, PHD is a clinical psychologist with a practice address in Boulder, Colorado, and NPI 1467648113, issued on Sep 17, 2007. Check the license (Colorado 657, as entered in NPPES) with the Colorado board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1467648113
Name
Thomas Lawson Windham
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
657 CO
Self-reported in NPPES; status is on the state search
Practice location
2830 Iliff St, Boulder, CO 80305
Phone
(303) 499-2740
Enumerated
Sep 17, 2007
Record last updated
Mar 17, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(720) 381-6784
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Thomas Lawson Windham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license 657
    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
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Thomas Lawson Windham among 1,652 clinical psychologist records in Colorado

Thomas Lawson Windham, PHD is one of 1,652 clinical psychologist records with a practice address in Colorado. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 20% of them.

  • NPI issued2007 · 20% of these records are older, 62% newer
  • In a Medicare fileNo · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 22% of these records are
  • Record last updated2008 · 60% 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 Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

114 clinical psychologist records list a practice address in Boulder

They are 114 of the 5,635 NPPES records with a practice address in Boulder, and 1,652 clinical psychologist records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical psychologist records with the nearest ZIP codes

  1. Deborah Bowman, PH.D.Boulder, CO 803051306924840
  2. Robert Hopper, PH.D.Boulder, CO 803051477661213
  3. Kent Hutchison, PHDBoulder, CO 803051508478314
  4. Daniel Leopold, PHDBoulder, CO 803051538005228
  5. Don Marinelli, PH.DBoulder, CO 803051275697799
  6. John Steele, PH.D.Boulder, CO 803051194041251
  7. Jason Turret, PSY.D.Boulder, CO 803051730598772
  8. Barbara Bradt-Ryan, PH.D.Boulder, CO 803041023135449

Common questions

What is Thomas Lawson Windham, PHD's NPI number?

Thomas Lawson Windham, PHD's National Provider Identifier (NPI) is 1467648113, issued on Sep 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Lawson Windham, PHD located?

The NPPES record lists a practice address at 2830 Iliff St, Boulder, CO, 80305. Phone: (303) 499-2740. Providers update this record themselves, so call before visiting.

How can I verify Thomas Lawson Windham, PHD's license?

NPPES lists Colorado license number 657, as entered by the provider. Search the Colorado 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. 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.