NPPES file of Aug 9, 2026

Leighann Brock, CAS

Addiction (Substance Use Disorder) Counselor · Denver, CO

Leighann Brock, CAS is an addiction (substance use disorder) counselor with a practice address in Denver, Colorado, and NPI 1457920209, issued on Jun 24, 2021. Check the license (Colorado ACC.0021143, 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
1457920209
Name
Leighann Brock
Credential
CAS
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
ACC.0021143 CO
Self-reported in NPPES; status is on the state search
Practice location
1155 Cherokee St, Denver, CO 80204
Phone
(303) 436-3572
Enumerated
Jun 24, 2021
Record last updated
Jun 24, 2021 (not updated in 5 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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Also registered at 1155 Cherokee St

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

  1. Astha AcharyaAddiction (Substance Use Disorder) Registered Nurse1780315150
  2. Joe Alecci, CAC IIIAddiction (Substance Use Disorder) Counselor1356595482
  3. Jaharri Asten, CAC IIAddiction (Substance Use Disorder) Counselor1023507175
  4. Kylie Bivrell-Walsh, BSN-RNAddiction (Substance Use Disorder) Registered Nurse1053889212
  5. Christina Borden, CAC IIIAddiction (Substance Use Disorder) Counselor1063764678
  6. Tom Bourdelais, CAC IIIAddiction (Substance Use Disorder) Counselor1780839761

Verify Leighann Brock 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 ACC.0021143    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

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353 addiction (substance use disorder) counselor records list a practice address in Denver

They are 353 of the 25,068 NPPES records with a practice address in Denver, and 1,876 addiction (substance use disorder) counselor records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 353 in Denver → All 1,876 in Colorado → Every provider in Denver →

Other addiction (substance use disorder) counselor records in Colorado

  1. Tajmah AbdulrahmaanWheat Ridge, CO1225808124
  2. Carlos Abel, CASLeadville, CO1033405808
  3. Clifford Abeyta, CAS, MSWFort Collins, CO1669489779
  4. Emory AbeytaPueblo, CO1457986010
  5. James Abrams, LPC, LACDenver, CO1871945915
  6. Marina AcostaDenver, CO1881127801
  7. Carly Acuna, LSWDenver, CO1831784917
  8. Alexis AdamsLafayette, CO1497422950
  9. Brian Adams, MSW, LAC, SWCColorado Springs, CO1811873359
  10. Danelle Adams, MA, CAC IIIWheat Ridge, CO1316373699

Common questions

What is Leighann Brock, CAS's NPI number?

Leighann Brock, CAS's National Provider Identifier (NPI) is 1457920209, issued on Jun 24, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Leighann Brock, CAS located?

The NPPES record lists a practice address at 1155 Cherokee St, Denver, CO, 80204. Phone: (303) 436-3572. Providers update this record themselves, so call before visiting.

How can I verify Leighann Brock, CAS's license?

NPPES lists Colorado license number ACC.0021143, 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.

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.