Esmeralda Castillo Rubi, FNP-C
- Part D claims, 2024
- 1,459
- Affiliated sites
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2017
- Practice address
- 436 S Riverside Ave, Rialto, CA 92376
- Practice phone
- Call (909) 877-8868
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
R Ruiz M D A Medical Corp
Primary care practice · Rialto, California
Find Esmeralda Rubi's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Esmeralda Castillo Rubi is a family nurse practitioner in Ontario, California
Esmeralda Rubi practices at R Ruiz M D A Medical Corp in Rialto, California.
Esmeralda Rubi's NPI, 1417461294, was assigned on November 30, 2017. Esmeralda Rubi holds California license 95007727.
- NPI
- 1417461294NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648519009
- NPI enumeration date
- November 30, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 877-8868
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Esmeralda Castillo Rubi practices in Rialto and Ontario
Esmeralda Rubi's primary practice is R Ruiz M D A Medical Corp, at 436 S Riverside Ave, Rialto, CA 92376. The practice phone is (909) 877-8868. The NPI Registry lists Esmeralda Rubi's practice address as 403 W F St, Ontario, CA 91762.
- R Ruiz M D A Medical CorpPrimary436 S Riverside Ave, Rialto, CA 92376Phone(909) 877-8868
- NPI Registry address403 W F St, Ontario, CA 91762 · San Bernardino CountyPhone(909) 877-8868
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Esmeralda Castillo Rubi is affiliated with 1 site of care and 2 medical groups
Esmeralda Rubi's primary practice is R Ruiz M D A Medical Corp in Rialto, California. The medical group on file is Rialto Clinica Medica Familiar. Dmand AI also links Esmeralda Rubi to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Esmeralda Castillo Rubi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Esmeralda Rubi practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| R Ruiz M D A Medical Corp | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Esmeralda Castillo Rubi is one of 13,532 family nurse practitioners in California
Family is Esmeralda Rubi's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Esmeralda Rubi is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Clinical focus
Dmand AI lists ear infection, itchy rashes, upper respiratory infection (URI) and yeast infection among the conditions Esmeralda Rubi treats.
Family nurse practitioners near Esmeralda Rubi
Counts of family nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Esmeralda Castillo Rubi's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Esmeralda Rubi's median patient age at 55, with 61% women.
Esmeralda Rubi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women61%
- Men39%
Source: Dmand AI Patient Panel Data
Esmeralda Castillo Rubi wrote 1,459 Medicare Part D claims in 2024
In 2024, Esmeralda Rubi wrote 1,459 Medicare Part D claims for 268 patients. 90% of them were for generic drugs. CMS names the drug for 1,073 of them, across 38 drugs with 11 or more claims each, at $33,132 in total drug cost.
Esmeralda Rubi's Part D claims by kind of drug, 2024
- Generic1,309 claims90%
- Brand-name and other150 claims10%
Esmeralda Rubi's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Esmeralda Rubi's Part D claims, 2024
- Antibiotics7%97 of 1,459 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Esmeralda Castillo Rubi takes part in Medicare
Esmeralda Rubi accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Esmeralda Castillo Rubi's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Esmeralda Castillo Rubi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Esmeralda Castillo Rubi's NPI number?
Esmeralda Castillo Rubi's NPI number is 1417461294. It was assigned on November 30, 2017, and it is active in the NPI Registry.
What does Esmeralda Castillo Rubi specialize in?
Esmeralda Castillo Rubi is a family nurse practitioner in Ontario, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Esmeralda Castillo Rubi practice?
Esmeralda Rubi practices at 436 S Riverside Ave, Rialto, CA 92376. Esmeralda Rubi also practices at 403 W F St, Ontario, CA 91762. Esmeralda Rubi's primary practice is R Ruiz M D A Medical Corp in Rialto, California. Dmand AI also links Esmeralda Rubi to 1 medical group.
What is Esmeralda Castillo Rubi's office phone number?
The practice phone on file for Esmeralda Rubi is (909) 877-8868.
What is Esmeralda Castillo Rubi's medical license number?
Esmeralda Rubi holds California license 95007727.
What medical group is Esmeralda Castillo Rubi part of?
Esmeralda Rubi is linked to Rialto Clinica Medica Familiar. Dmand AI links Esmeralda Rubi to 1 more medical group.
Does Esmeralda Castillo Rubi accept Medicare?
Yes. CMS lists Esmeralda Rubi as accepting Medicare assignment.
What drugs does Esmeralda Castillo Rubi prescribe most?
In 2024 Medicare Part D data, Esmeralda Rubi's most prescribed drugs by claims were Metformin HCl, Lisinopril and Fluticasone Propionate.
How long has Esmeralda Castillo Rubi been practicing?
Esmeralda Rubi graduated from medical school in 2017, 9 years ago.
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