Esmeralda Castillo Rubi, FNP-C
Family Nurse Practitioner · Rialto, CA
Esmeralda Castillo Rubi, FNP-C is a family nurse practitioner with a practice address in Rialto, California, and NPI 1417461294, issued on Nov 30, 2017. Check the license (California 95007727, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Esmeralda Castillo Rubi
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95007727 CA
Self-reported in NPPES; status is on the state search - Practice location
- 436 S Riverside Ave, Rialto, CA 92376
- Phone
- (909) 877-8868
- Enumerated
- Nov 30, 2017
- Record last updated
- Nov 30, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (909) 877-0008
- Medicare enrollment
- Enrolled (PECOS I20190228002824); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 436 S Riverside Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Barrios, CHWCommunity Health Worker1194583849
- Darshan Bhakta, PHARM. D.Pharmacist1285991000
- Grace Buonavita, PACPhysician Assistant1396805479
- Charles Dobbs, R.PH., MBAPharmacist1912005018
- Monica Fernandez, RNFamily Nurse Practitioner1982360459
- Clara Macias, CHWCommunity Health Worker1467210112
Verify Esmeralda Castillo Rubi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95007727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average family nurse practitioner in 2024
1,459 Medicare Part D claims for 268 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Metformin Hcl80 claims
- Lisinopril67 claims
- Fluticasone Propionate66 claims
- Levothyroxine Sodium61 claims
- Losartan Potassium53 claims
- Glipizide52 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Apple Urgent Care IncMoreno Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Esmeralda Castillo Rubi among 16,966 family nurse practitioner records in California
Esmeralda Castillo Rubi, FNP-C is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 40% of them.
- NPI issued2017 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2017 · median 2019 among the 6,793 with a school on file
- Record last updated2017 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 family nurse practitioner records list a practice address in Rialto
They are 20 of the 1,044 NPPES records with a practice address in Rialto, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Rialto → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Terrye Anderson, NPRialto, CA 923761093014839
- Adrienne Burn, FNPRialto, CA 923761700160546
- Linnea Chaves, RN FNPRialto, CA 923761992115018
- Almi Del Villar, F.N.P.Rialto, CA 923761518359892
- Roxanna Lucero, FNPRialto, CA 923761194833525
- Wanda Meyer, FNPRialto, CA 923761962776104
- Jeremy NeunerRialto, CA 923761205945250
- Dorothy Robertson, FNPRialto, CA 923761508004763
Common questions
What is Esmeralda Castillo Rubi, FNP-C's NPI number?
Esmeralda Castillo Rubi, FNP-C's National Provider Identifier (NPI) is 1417461294, issued on Nov 30, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Esmeralda Castillo Rubi, FNP-C located?
The NPPES record lists a practice address at 436 S Riverside Ave, Rialto, CA, 92376. Phone: (909) 877-8868. Providers update this record themselves, so call before visiting.
How can I verify Esmeralda Castillo Rubi, FNP-C's license?
NPPES lists California license number 95007727, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Esmeralda Castillo Rubi, FNP-C prescribe under Medicare Part D?
In 2024, Esmeralda Castillo Rubi, FNP-C had 1,459 Medicare Part D claims for 268 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.