Marilyn Brooks, RN,MSN,FNP-C
NPI 1366641821 · Family Nurse Practitioner · Riverside, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn Brooks, RN,MSN,FNP-C is a Family Nurse Practitioner provider in Riverside, CA (NPI 1366641821).
Provider details
- NPI number
- 1366641821
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN,MSN,FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 13224 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 67 | 29 |
| Losartan Potassium | 60 | 30 |
| Atorvastatin Calcium | 57 | 34 |
| Lisinopril | 54 | 17 |
| Metformin Hcl | 42 | 22 |
| Furosemide | 39 | 12 |
| Amlodipine Besylate | 35 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$456 across 18 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-15
- Last updated
- 2023-03-07
- Certified
- 2023-02-13
Frequently asked questions
- What is Marilyn Brooks's NPI number?
- Marilyn Brooks's National Provider Identifier (NPI) is 1366641821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Brooks's specialty?
- Marilyn Brooks is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marilyn Brooks located?
- Marilyn Brooks's practice location on file with NPPES is 5870 Arlington Ave, Riverside, CA 92504-2037.
- What is Marilyn Brooks's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Brooks is (951) 683-6596.
- Does Marilyn Brooks accept Medicare?
- Marilyn Brooks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilyn Brooks's NPI active?
- Yes — Marilyn Brooks's NPI (1366641821) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.