NPPES file of Aug 9, 2026

Marilyn R. Warren, RN, CNS, RXS

Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist · Buena Vista, CO

Marilyn R. Warren, RN, CNS, RXS is a child & adolescent psychiatric/mental health clinical nurse specialist with a practice address in Buena Vista, Colorado, and NPI 1477569473, issued on Jul 31, 2006. Check the license (Colorado CNS-3854, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477569473
Name
Marilyn R. Warren
Credential
RN, CNS, RXS
Primary taxonomy
Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist 364SP0807X
License numbers
CNS-3854 CO
RN29972 MT
Self-reported in NPPES; status is on the state search
Practice location
28374 County Road 317, Buena Vista, CO 81211
Phone
(719) 538-6502
Enumerated
Jul 31, 2006
Record last updated
Jan 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(719) 539-3988
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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3 nearest child & adolescent psychiatric/mental health clinical nurse specialist records → All 4 in Colorado → Look up another NPI →

Also registered at 28374 County Road 317

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

  1. Donna Boria, RDHDental Hygienist1891187993
  2. Constance Gable, ARNPNurse Practitioner1154319507
  3. Anna Jones, M.D.Family Medicine Physician1467809517
  4. Janet Ommen, MSN, FNPFamily Nurse Practitioner1952302366
  5. Craig Otteni, MDFamily Medicine Physician1497193262
  6. Erica Smith, DOFamily Medicine Physician1124056668

Verify Marilyn R. Warren 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 CNS-3854    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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5.9 times the Medicare Part D claims of the average child & adolescent psychiatric/mental health clinical nurse specialist in 2024

3,680 Medicare Part D claims for 199 beneficiaries, against an average of 628 among the 46 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Marilyn Warren3,680
  2. Specialty average628

Most prescribed

  1. Quetiapine Fumarate332 claims
  2. Buspirone Hcl205 claims
  3. Trazodone Hcl183 claims
  4. Lamotrigine174 claims
  5. Gabapentin156 claims
  6. Risperidone132 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

1 child & adolescent psychiatric/mental health clinical nurse specialist record lists a practice address in Buena Vista

They are 1 of the 109 NPPES records with a practice address in Buena Vista, and 4 child & adolescent psychiatric/mental health clinical nurse specialist records in Colorado.

All 4 in Colorado → Every provider in Buena Vista → Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist nationwide →

The 3 child & adolescent psychiatric/mental health clinical nurse specialist records with the nearest ZIP codes

  1. Charon Nelson, MSN, CNSColorado Springs, CO 809061992755466
  2. Betsy SheldonColorado Springs, CO 809061174376610
  3. Beth Trimmer, CNSDenver, CO 802041417967266

Common questions

What is Marilyn R. Warren, RN, CNS, RXS's NPI number?

Marilyn R. Warren, RN, CNS, RXS's National Provider Identifier (NPI) is 1477569473, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marilyn R. Warren, RN, CNS, RXS located?

The NPPES record lists a practice address at 28374 County Road 317, Buena Vista, CO, 81211. Phone: (719) 538-6502. Providers update this record themselves, so call before visiting.

How can I verify Marilyn R. Warren, RN, CNS, RXS's license?

NPPES lists Colorado license number CNS-3854, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Marilyn R. Warren, RN, CNS, RXS prescribe under Medicare Part D?

In 2024, Marilyn R. Warren, RN, CNS, RXS had 3,680 Medicare Part D claims for 199 beneficiaries; the average among child & adolescent psychiatric/mental health clinical nurse specialist prescribers was 628. Part D covers Medicare prescriptions 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.