Cynthia Castillo, FNP-C
NPI 1699429704 · Family Nurse Practitioner · Riverside, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Castillo, FNP-C is a Family Nurse Practitioner provider in Riverside, CA (NPI 1699429704).
Provider details
- NPI number
- 1699429704
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95022514 (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
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- 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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 67 | 31 |
| Levofloxacin | 49 | 48 |
| Pantoprazole Sodium | 42 | 36 |
| Atorvastatin Calcium | 34 | 29 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 31 | 31 |
| Apixabanbrand: Eliquis | 27 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (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
Additional practice locations (2)
- 28062 Baxter RdMurrieta, CA 92563-1401Phone: (951) 290-4066
- 40700 California Oaks RdMurrieta, CA 92562-5795Phone: (951) 696-4447
Registry dates
- Enumerated
- 2022-02-08
- Last updated
- 2024-09-19
- Certified
- 2024-09-09
Frequently asked questions
- What is Cynthia Castillo's NPI number?
- Cynthia Castillo's National Provider Identifier (NPI) is 1699429704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Castillo's specialty?
- Cynthia Castillo is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cynthia Castillo located?
- Cynthia Castillo's practice location on file with NPPES is 6780 Indiana Ave Ste 170, Riverside, CA 92506-4284.
- What is Cynthia Castillo's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Castillo is (951) 680-0909.
- Does Cynthia Castillo accept Medicare?
- Cynthia Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Castillo's NPI active?
- Yes — Cynthia Castillo's NPI (1699429704) is active in the NPPES registry as of the last update on 2024-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.