NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1366641821 RN,MSN,FNP-C
Verify on CMS → Marilyn Brooks, RN,MSN,FNP-C
Family Nurse Practitioner in Riverside, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 216,959 in Family 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
1K
Medicare Part D claims · 193 beneficiaries · Family Nurse Practitioner avg: 1K
Industry payments
$456.36
18 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Marilyn Brooks, RN,MSN,FNP-C filed 1,315 Medicare Part D claims in 2024 as a Family Nurse Practitioner in Riverside, California.
- 1K
- Part D claims, 2024
- $456.36
- industry payments (Sunshine Act)
- ≥79th
- 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 Brooks, RN,MSN,FNP-C
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1366641821), first enumerated 07/15/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,315 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$456.36 in reported industry payments (18 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Marilyn Brooks, RN,MSN,FNP-C's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- 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 1366641821 · Family Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1366641821
- ENUM-MID 2007
- TAX-MEGA 217K Family Nurse
- RX-MID 1,315
- BOOK-MID 15,527 in California
- PHOTO-ENUM Julie Pierce · 2007
Marilyn Brooks, RN,MSN,FNP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,315 ≥ 79th percentile 79% 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 Brooks, RN,MSN,FNP-C?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
1,315 1% vs specialty avg
Specialty distribution in California
How Family Nurse Practitioner compares to other specialties among California 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 Family 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 | 1366641821 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | RN,MSN,FNP-C |
| Gender | Female |
| NPI Issued | 07/15/2007 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Marilyn Brooks, RN,MSN,FNP-C. Source: openpaymentsdata.cms.gov.
Total received
$456
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Marilyn Brooks, RN,MSN,FNP-C. To verify Marilyn Brooks, RN,MSN,FNP-C's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,315
Total Claims
$128K
Total Drug Cost
193
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,102.2
- Total Day Supply
- 58,781
- Generic Drug Cost
- $11K
- Opioid Claims
- 20 (1.5% rate)
- Antibiotic Claims
- 95
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 1.36
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 30, 65-74: 98, 75-84: 44, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Marilyn Brooks, RN,MSN,FNP-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Gabapentin
Gabapentin
67 claims
- Losartan Potassium
Losartan Potassium
60 claims
- Atorvastatin Calcium
Atorvastatin Calcium
57 claims
- Lisinopril
Lisinopril
54 claims
- Metformin Hcl
Metformin Hcl
42 claims
- Furosemide
Furosemide
39 claims
- Amlodipine Besylate
Amlodipine Besylate
35 claims
- Omeprazole
Omeprazole
29 claims
| Drug | Claims |
|---|---|
| Gabapentin | 67 |
| Losartan Potassium | 60 |
| Atorvastatin Calcium | 57 |
| Lisinopril | 54 |
| Metformin Hcl | 42 |
| Furosemide | 39 |
| Amlodipine Besylate | 35 |
| Omeprazole | 29 |
| Ozempic Semaglutide | 29 |
| Levothyroxine Sodium | 27 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Marilyn Brooks, RN,MSN,FNP-C fits within the Family Nurse Practitioner landscape nationally.
216,959
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,302
Avg Claims per Provider
Marilyn Brooks, RN,MSN,FNP-C's 1,315 claims are above the specialty average of 1,302.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Brooks, both outside California 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 Family Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Brooks.
One of 15,527 Family Nurse Practitioner providers enrolled in California, 5 are shown here.
Danielle Aaroe
FAMILY NURSE PRACTIT
Oroville, CA
Joshua Aaron
Mission Hills, CA
Orly Aaron
NP
San Francisco, CA
Paris Gilbert Russ Aaron
Sacramento, CA
Alvin Joseph Abad
FNP-C
San Francisco, CA
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Marilyn Brooks, RN,MSN,FNP-C's specialty? ▼
Marilyn Brooks, RN,MSN,FNP-C specializes in Family Nurse Practitioner and practices in Riverside, California. Credentials: RN,MSN,FNP-C.
How much does Marilyn Brooks, RN,MSN,FNP-C prescribe under Medicare Part D? ▼
In 2024, Marilyn Brooks, RN,MSN,FNP-C wrote 1,315 Medicare Part D claims totaling $128K in drug costs for 193 beneficiaries.
Where is Marilyn Brooks, RN,MSN,FNP-C located? ▼
Marilyn Brooks, RN,MSN,FNP-C is located at 5870 ARLINGTON AVE, Riverside, CA, 92504. Phone: (951) 683-6596.
What is Marilyn Brooks, RN,MSN,FNP-C's NPI number? ▼
Marilyn Brooks, RN,MSN,FNP-C's National Provider Identifier (NPI) is 1366641821, issued on 07/15/2007.
Does Marilyn Brooks, RN,MSN,FNP-C prescribe opioids? ▼
Yes, Marilyn Brooks, RN,MSN,FNP-C had 20 opioid claims in 2024 with an opioid prescribing rate of 1.5%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 216,959 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,302 Medicare Part D claims per year.
What drugs does Marilyn Brooks, RN,MSN,FNP-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Marilyn Brooks, RN,MSN,FNP-C's most frequently prescribed drugs include Gabapentin, Losartan Potassium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marilyn Brooks, RN,MSN,FNP-C accept Medicare? ▼
Marilyn Brooks, RN,MSN,FNP-C appears in CMS Medicare data with 1,315 Part D claims and 193 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marilyn Brooks, RN,MSN,FNP-C's credentials? ▼
Marilyn Brooks, RN,MSN,FNP-C's NPI is 1366641821 with credentials RN,MSN,FNP-C. 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.