NPI registry status
Active
2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1164576914 PMHNP
Verify on CMS → Marguerite Gareau, PMHNP
Psychiatric/Mental Health Nurse Practitioner in Portland, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 44,928 in Psychiatric/Mental Health Nurse Practitioner, 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
277
Medicare Part D claims · 26 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 924
What the federal data shows
Marguerite Gareau, PMHNP filed 277 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in Portland, Oregon.
- 277
- Part D claims, 2023
- ≥49th
- 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 Marguerite Gareau, PMHNP
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 1164576914), first enumerated 01/22/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 277 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.
CMS NPPES provider registry desk
NPI 1164576914 · Psychiatric/Mental Health Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1164576914
- ENUM-MID 2007
- TAX-MID 45K Psychiatric/Mental Health
- RX-LIGHT 277
- BOOK-LIGHT 879 in Oregon
- PHOTO-ENUM Denise Driscoll · 2007
Marguerite Gareau, PMHNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
277 ≥ 49th percentile 49% of 1,380,665 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 · 2023
What does the federal data show about Marguerite Gareau, PMHNP?
Quality data not reportedPrimary specialty
Psychiatric/Mental Health Nurse Practitioner
Medicare Part D claims
277 70% vs specialty avg
Specialty distribution in Oregon
How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Oregon 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 Psychiatric/Mental Health Nurse Practitioner. 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 | 1164576914 |
|---|---|
| Specialty | Psychiatric/Mental Health Nurse Practitioner |
| Credentials | PMHNP |
| Gender | Female |
| NPI Issued | 01/22/2007 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
277
Total Claims
$6K
Total Drug Cost
26
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 583.96
- Total Day Supply
- 17,377
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 67.9 years
- Avg HCC Risk Score
- 0.91
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Marguerite Gareau, PMHNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lorazepam
Lorazepam
39 claims
- Dextroamphetamine-…
Dextroamphetamine-Amphetamine
31 claims
- Sertraline Hcl
Sertraline Hcl
25 claims
- Alprazolam
Alprazolam
24 claims
- Quetiapine Fumarate
Quetiapine Fumarate
23 claims
- Clonazepam 14
Clonazepam
14 claims
- Lamotrigine 13
Lamotrigine
13 claims
| Drug | Claims |
|---|---|
| Lorazepam | 39 |
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 31 |
| Sertraline Hcl | 25 |
| Alprazolam | 24 |
| Quetiapine Fumarate | 23 |
| Clonazepam | 14 |
| Lamotrigine | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Psychiatric/Mental Health Nurse Practitioner in OR →
All providers in Oregon →
Compare specialties →
Psychiatric/Mental Health Nurse Practitioner Overview
How Marguerite Gareau, PMHNP fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.
44,928
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
924
Avg Claims per Provider
Marguerite Gareau, PMHNP's 277 claims are below the specialty average of 924.
Nationwide Psychiatric/Mental Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Gareau, both outside Oregon so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Gareau.
One of 879 Psychiatric/Mental Health Nurse Practitioner providers enrolled in Oregon, 5 are shown here.
Doris Aasland
NP
Oregon City, OR
Gemechis Abdissa
Portland, OR
Abdul Munir Abdul Ghiyas
Portland, OR
Dr. Olubunmi Aborisade
DNP
Portland, OR
Debra Achenbach
PMHNP
Cottage Grove, OR
Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Marguerite Gareau, PMHNP's specialty? ▼
Marguerite Gareau, PMHNP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in Portland, Oregon. Credentials: PMHNP.
How much does Marguerite Gareau, PMHNP prescribe under Medicare Part D? ▼
In 2023, Marguerite Gareau, PMHNP wrote 277 Medicare Part D claims totaling $6K in drug costs for 26 beneficiaries.
Where is Marguerite Gareau, PMHNP located? ▼
Marguerite Gareau, PMHNP is located at 2929 SW MULTNOMAH BLVD, Portland, OR, 97219. Phone: (503) 998-8346.
What is Marguerite Gareau, PMHNP's NPI number? ▼
Marguerite Gareau, PMHNP's National Provider Identifier (NPI) is 1164576914, issued on 01/22/2007.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US? ▼
There are 44,928 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 924 Medicare Part D claims per year.
What drugs does Marguerite Gareau, PMHNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Marguerite Gareau, PMHNP's most frequently prescribed drugs include Lorazepam, Dextroamphetamine-Amphetamine, Sertraline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marguerite Gareau, PMHNP accept Medicare? ▼
Marguerite Gareau, PMHNP appears in CMS Medicare data with 277 Part D claims and 26 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marguerite Gareau, PMHNP's credentials? ▼
Marguerite Gareau, PMHNP's NPI is 1164576914 with credentials PMHNP. 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 (2023). 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 April 2026 (NPPES) / 2023 (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.