NPPES file of Aug 9, 2026

James Tran Nguyen, PH.D.

Clinical Psychologist · Denver, CO

James Tran Nguyen, PH.D. is a clinical psychologist with a practice address in Denver, Colorado, and NPI 1912089038, issued on Oct 19, 2006. Check the license (Colorado 3334, as entered in NPPES) with the Colorado 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
1912089038
Name
James Tran Nguyen
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
3334 CO
Self-reported in NPPES; status is on the state search
Practice location
190 E 9TH Ave Ste 350, Denver, CO 80203
Phone
(720) 449-2499
Enumerated
Oct 19, 2006
Record last updated
Jul 13, 2022
Fax
(720) 634-0719
Medicare enrollment
Enrolled (PECOS I20160209000176); 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.
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8 nearest clinical psychologist records → All 1,652 in Colorado → Look up another NPI →

Also registered at 190 E 9TH Ave Ste 350

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

  1. Sinead Maguire, LSWSocial Worker1477351153
  2. Mini Mathai, PSYDClinical Psychologist1720830243

Verify James Tran Nguyen 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 3334    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 Colorado 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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Bills Medicare through one group practice

  1. Rocky Mountain Neuropsychology Consultants, LLCDenver, CO

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

James Tran Nguyen among 1,652 clinical psychologist records in Colorado

James Tran Nguyen, PH.D. 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. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 80% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 22% of these records are
  • Graduated2007 · median 2009 among the 370 with a school on file
  • Record last updated2022 · 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).

477 clinical psychologist records list a practice address in Denver

They are 477 of the 25,068 NPPES records with a practice address in Denver, and 1,652 clinical psychologist records in Colorado.

All 1,652 in Colorado → Every provider in Denver → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Korrie Allen, PSY.D.Denver, CO 802031588847180
  2. Jamie Brenner, PSY.D.Denver, CO 802031437484037
  3. Amy Calabrese, PSYDDenver, CO 802031215054655
  4. Kate Colon, PSYDDenver, CO 802031407174741
  5. Rosario Delcastillo, PSY.D.Denver, CO 802031063742252
  6. Robert Demoss, PSY.D.Denver, CO 802031851504807
  7. Jeanne Floerke, PSYDDenver, CO 802031811046212
  8. Mary Jane McBean, PSYDDenver, CO 802031659422244

Common questions

What is James Tran Nguyen, PH.D.'s NPI number?

James Tran Nguyen, PH.D.'s National Provider Identifier (NPI) is 1912089038, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Tran Nguyen, PH.D. located?

The NPPES record lists a practice address at 190 E 9TH Ave Ste 350, Denver, CO, 80203. Phone: (720) 449-2499. Providers update this record themselves, so call before visiting.

How can I verify James Tran Nguyen, PH.D.'s license?

NPPES lists Colorado license number 3334, 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. 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.