NPI registry status
Active
2026 NPPES data Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist NPI 1477569473 RN, CNS, RXS
Verify on CMS → Marilyn Warren, RN, CNS, RXS
Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist in Buena Vista, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 233 in Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
4K
Medicare Part D claims · 199 beneficiaries · Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist avg: 795
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Marilyn Warren, RN, CNS, RXS filed 3,680 Medicare Part D claims in 2024 as a Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist in Buena Vista, Colorado, prescribing 93% generic.
- 4K
- Part D claims, 2024
- 93%
- generic prescribing
- ≥90th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Marilyn Warren, RN, CNS, RXS
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1477569473), first enumerated 07/31/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,680 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Warren with other Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Colorado
- Mary Bobye, APRN Thornton, CO
- Lanny Douglas, APRN Fort Collins, CO
- Betsy Sheldon Colorado Springs, CO
- Beth Trimmer, CNS Denver, CO
Other specialties in Buena Vista: Physical Therapist (12) · Mental Health Counselor (12) · Family Medicine Physician (8) · Professional Counselor (7)
Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist state by state →
CMS NPPES provider registry desk
NPI 1477569473 · Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist
NPI-10 · ENUM-LEGACY · TAX-TRACE · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1477569473
- ENUM-LEGACY 2006
- TAX-TRACE 233
- RX-MID 3,680
- BOOK-THIN 5 in Colorado
- PHOTO-ENUM Patricia Gleue, ARNP · 2006
Marilyn Warren, RN, CNS, RXS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
3,680 ≥ 90th percentile 90% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Marilyn Warren, RN, CNS, RXS?
Quality data not reportedPrimary specialty
Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist
Medicare Part D claims
3,680 363% vs specialty avg
Specialty distribution in Colorado
How Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist compares to other specialties among Colorado providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1477569473 |
|---|---|
| Specialty | Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist |
| Credentials | RN, CNS, RXS |
| Gender | Female |
| NPI Issued | 07/31/2006 |
Brand vs generic prescribing mix · Generic-heavy
Marilyn Warren, RN, CNS, RXS - brand share 7.0%
Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist average
7% brand-name claims vs 93% generic, on 3,680 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
3,680
Total Claims
$845K
Total Drug Cost
199
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,264.733
- Total Day Supply
- 120,928
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $706K
- Generic Drug Cost
- $139K
Patient Demographics
- Average Patient Age
- 54.9 years
- Avg HCC Risk Score
- 1.47
- Gender Split
- 44% female / 56% male
- Age Distribution
- <65: 140, 65-74: 45, 75-84: 14, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Marilyn Warren, RN, CNS, RXS prescribes most
Top Medicare Part D drugs by claim count, 2024
- Quetiapine Fumarate
Quetiapine Fumarate
332 claims
- Buspirone Hcl
Buspirone Hcl
205 claims
- Trazodone Hcl
Trazodone Hcl
183 claims
- Lamotrigine
Lamotrigine
174 claims
- Gabapentin
Gabapentin
156 claims
- Risperidone 132
Risperidone
132 claims
- Divalproex Sodium Er 126
Divalproex Sodium Er
126 claims
- Benztropine Mesylate 125
Benztropine Mesylate
125 claims
| Drug | Claims |
|---|---|
| Quetiapine Fumarate | 332 |
| Buspirone Hcl | 205 |
| Trazodone Hcl | 183 |
| Lamotrigine | 174 |
| Gabapentin | 156 |
| Risperidone | 132 |
| Divalproex Sodium Er Divalproex Sodium | 126 |
| Benztropine Mesylate | 125 |
| Clozapine | 124 |
| Olanzapine | 124 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist in CO →
All providers in Colorado →
Compare specialties →
Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist Overview
How Marilyn Warren, RN, CNS, RXS fits within the Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist landscape nationally.
233
Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist Providers in US
43
States with Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist
795
Avg Claims per Provider
Marilyn Warren, RN, CNS, RXS's 3,680 claims are above the specialty average of 795.
Nationwide Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Warren, both outside Colorado so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Frequently Asked Questions
What is Marilyn Warren, RN, CNS, RXS's specialty? ▼
Marilyn Warren, RN, CNS, RXS specializes in Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist and practices in Buena Vista, Colorado. Credentials: RN, CNS, RXS.
How much does Marilyn Warren, RN, CNS, RXS prescribe under Medicare Part D? ▼
In 2024, Marilyn Warren, RN, CNS, RXS wrote 3,680 Medicare Part D claims totaling $845K in drug costs for 199 beneficiaries.
Where is Marilyn Warren, RN, CNS, RXS located? ▼
Marilyn Warren, RN, CNS, RXS is located at 28374 COUNTY ROAD 317, Buena Vista, CO, 81211. Phone: (719) 538-6502.
What is Marilyn Warren, RN, CNS, RXS's NPI number? ▼
Marilyn Warren, RN, CNS, RXS's National Provider Identifier (NPI) is 1477569473, issued on 07/31/2006.
Does Marilyn Warren, RN, CNS, RXS prescribe more brand-name or generic drugs? ▼
Marilyn Warren, RN, CNS, RXS's prescribing is 7% brand-name and 93% generic drugs by claim count, with $706K in brand drug costs.
How many Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist providers are there in the US? ▼
There are 233 Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist providers across 43 states in the US. The average Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist provider writes 795 Medicare Part D claims per year.
What drugs does Marilyn Warren, RN, CNS, RXS prescribe most often? ▼
Based on 2024 Medicare Part D data, Marilyn Warren, RN, CNS, RXS's most frequently prescribed drugs include Quetiapine Fumarate, Buspirone Hcl, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marilyn Warren, RN, CNS, RXS accept Medicare? ▼
Marilyn Warren, RN, CNS, RXS appears in CMS Medicare data with 3,680 Part D claims and 199 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marilyn Warren, RN, CNS, RXS's credentials? ▼
Marilyn Warren, RN, CNS, RXS's NPI is 1477569473 with credentials RN, CNS, RXS. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.