Marilyn L J Cooper, MSS
Addiction (Substance Use Disorder) Counselor · Boulder, CO
Marilyn L J Cooper, MSS is an addiction (substance use disorder) counselor with a practice address in Boulder, Colorado, and NPI 1952716953, issued on Jun 27, 2014. Check the license (Colorado 0006301, 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.
- Name
- Marilyn L J Cooper
- Credential
- MSS
- Primary taxonomy
- Addiction (Substance Use Disorder) Counselor 101YA0400X
- License number
- 0006301 CO
Self-reported in NPPES; status is on the state search - Practice location
- 3450 Broadway St, Boulder, CO 80304
- Phone
- (303) 441-1275
- Enumerated
- Jun 27, 2014
- Record last updated
- Jun 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (303) 441-1286
- Entity
- Type 1 · individual
Also registered at 3450 Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Abel, M.A.Mental Health Counselor1881002574
- Belle AbramsonMental Health Counselor1811302508
- Anne BrooksAddiction (Substance Use Disorder) Counselor1861807919
- Jeffrey BrownMental Health Counselor1245352772
- Caelen Cann, M.A.Mental Health Counselor1427463017
- William Coppersmith, M.A.Mental Health Counselor1104945419
Verify Marilyn L J Cooper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 0006301Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66 addiction (substance use disorder) counselor records list a practice address in Boulder
They are 66 of the 5,635 NPPES records with a practice address in Boulder, 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 66 in Boulder → All 1,876 in Colorado → Every provider in Boulder →
Other addiction (substance use disorder) counselor records in Colorado
- Tajmah AbdulrahmaanWheat Ridge, CO1225808124
- Carlos Abel, CASLeadville, CO1033405808
- Clifford Abeyta, CAS, MSWFort Collins, CO1669489779
- Emory AbeytaPueblo, CO1457986010
- James Abrams, LPC, LACDenver, CO1871945915
- Marina AcostaDenver, CO1881127801
- Carly Acuna, LSWDenver, CO1831784917
- Alexis AdamsLafayette, CO1497422950
- Brian Adams, MSW, LAC, SWCColorado Springs, CO1811873359
- Danelle Adams, MA, CAC IIIWheat Ridge, CO1316373699
Common questions
What is Marilyn L J Cooper, MSS's NPI number?
Marilyn L J Cooper, MSS's National Provider Identifier (NPI) is 1952716953, issued on Jun 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn L J Cooper, MSS located?
The NPPES record lists a practice address at 3450 Broadway St, Boulder, CO, 80304. Phone: (303) 441-1275. Providers update this record themselves, so call before visiting.
How can I verify Marilyn L J Cooper, MSS's license?
NPPES lists Colorado license number 0006301, 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.