Esther Loya, PA-C

  • Fontana, CA
  • Physician assistant
NPI1548557309PAC ID1153612569
Medicare patients, 2024
18
Part D claims, 2024
1,030
Affiliated sites
1
Medical group
1
State license
1
Practice address
9961 Sierra Ave, Fontana, CA 92335
Practice phone
Call (909) 427-3910
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Fontana Medical Center

Fontana, California

See all 3 affiliations

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Esther Loya is a physician assistant in Fontana, California

Esther Loya practices at Fontana Medical Center in Fontana, California.

Esther Loya's NPI, 1548557309, was assigned on June 30, 2011. Esther Loya holds California license PA 21261.

NPI and contact details
Medicare PAC ID
1153612569
NPI enumeration date
June 30, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(909) 427-3910
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
42
Medical school graduation
2010

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Esther Loya practices at Fontana Medical Center in Fontana, California

Esther Loya's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-3910.

  • Fontana Medical Center
    9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-3910

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Esther Loya is affiliated with 2 sites of care and 1 medical group

Esther Loya's primary practice is Fontana Medical Center in Fontana, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Esther Loya to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Esther Loya

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Esther Loya's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Esther Loya practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Fontana Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Esther Loya is one of 2,381 physician assistants in California

Medical is Esther Loya's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Esther Loya is licensed in California.

Specialties and state licenses

  • Medical physician assistant, CaliforniaPrimaryLicense PA 21261 · taxonomy 363AM0700X

Physician assistants near Esther Loya

Counts of physician assistants 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

Esther Loya treated 18 Medicare patients in 2024, average age 66

CMS counts 18 Medicare patients who saw Esther Loya in 2024. 67% of them have high blood pressure. Their average risk score is 0.73, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Esther Loya's median patient age at 28, with 65% women.

Medicare patients, 202418
Average age66
Average risk score0.73

Chronic conditions among Esther Loya's Medicare patients, 2024

  1. High blood pressure67%

Share of Medicare patients with each condition. A patient can have several.

Esther Loya's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 28

Patient panel by sex, all payers

  • Women65%
  • Men35%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Esther Loya wrote 1,030 Medicare Part D claims in 2024

In 2024, Esther Loya wrote 1,030 Medicare Part D claims for 614 patients. 92% of them were for generic drugs.

Part D claims, 20241,030
Part D patients614

Esther Loya's Part D claims by kind of drug, 2024

  • Generic951 claims92%
  • Brand-name and other79 claims8%

Drug classes CMS tracks in Esther Loya's Part D claims, 2024

  • Opioids8%83 of 1,030 claims
  • Antibiotics39%406 of 1,030 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Esther Loya takes part in Medicare

Esther Loya 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 Esther Loya's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Esther Loya

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Esther Loya's NPI number?

Esther Loya's NPI number is 1548557309. It was assigned on June 30, 2011, and it is active in the NPI Registry.

What does Esther Loya specialize in?

Esther Loya is a physician assistant in Fontana, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).

Where does Esther Loya practice?

Esther Loya practices at 9961 Sierra Ave, Fontana, CA 92335. Esther Loya's primary practice is Fontana Medical Center in Fontana, California. Dmand AI also links Esther Loya to 1 group practice or clinic.

What is Esther Loya's office phone number?

The practice phone on file for Esther Loya is (909) 427-3910.

What is Esther Loya's medical license number?

Esther Loya holds California license PA 21261.

What medical group is Esther Loya part of?

Esther Loya is linked to Southern California Permanente Medical Group.

Does Esther Loya accept Medicare?

Yes. CMS lists Esther Loya as accepting Medicare assignment.

How many Medicare patients does Esther Loya see?

CMS counts 18 Medicare patients who saw Esther Loya in 2024, with an average age of 66.

How long has Esther Loya been practicing?

Esther Loya graduated from medical school in 2010, 16 years ago.

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