NPPES file of Aug 9, 2026

Diane Witson Williams, PSY.D.

Clinical Psychologist · Coaldale, CO

Diane Witson Williams, PSY.D. is a clinical psychologist with a practice address in Coaldale, Colorado, and NPI 1578892683, issued on Dec 18, 2009. Check the license (Colorado 2161, 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
1578892683
Name
Diane Witson Williams
Credential
PSY.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
2161 CO
Self-reported in NPPES; status is on the state search
Practice location
247 Fox Creek Drive, Coaldale, CO 81222
Phone
(719) 221-0654
Enumerated
Dec 18, 2009
Record last updated
Oct 18, 2018 (not updated in 8 years: call before relying on the address or phone)
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 Diane Witson Williams 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 2161
    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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Diane Witson Williams among 1,652 clinical psychologist records in Colorado

Diane Witson Williams, PSY.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 not. Its NPI, issued in 2009, is newer than 44% of them.

  • NPI issued2009 · 44% of these records are older, 52% newer
  • In a Medicare fileNo · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 22% of these records are
  • Record last updated2018 · 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).

Clinical Psychologist providers in Colorado

There are 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. Mark Carter, PHDCotopaxi, CO 812231457697336
  2. Tiffany PetersonFlorence, CO 812261467992164
  3. Bobby Brown, PSYDGunnison, CO 812301235735911
  4. Anthony Sullivan, PSYDCanon City, CO 812121245362615
  5. Patricia Winter, PH.D.Buena Vista, CO 812111720176720
  6. Carol Ahuna, PHDSalida, CO 812011033241716
  7. Lisa Vonderhaar, PH.D.Salida, CO 812011114086410
  8. Sharon Carter, PH.D.Pagosa Springs, CO 811471134574791

Common questions

What is Diane Witson Williams, PSY.D.'s NPI number?

Diane Witson Williams, PSY.D.'s National Provider Identifier (NPI) is 1578892683, issued on Dec 18, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Diane Witson Williams, PSY.D. located?

The NPPES record lists a practice address at 247 Fox Creek Drive, Coaldale, CO, 81222. Phone: (719) 221-0654. Providers update this record themselves, so call before visiting.

How can I verify Diane Witson Williams, PSY.D.'s license?

NPPES lists Colorado license number 2161, 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.