Diana M. Fernandez, P.A.
Physician Assistant · West Covina, CA
Diana M. Fernandez, P.A. is a physician assistant with a practice address in West Covina, California, and NPI 1235377367, issued on Jan 27, 2009. Check the license (California PA201113, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana M. Fernandez
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA201113 CA
Self-reported in NPPES; status is on the state search - Practice location
- 420 S Glendora Ave, West Covina, CA 91790
- Phone
- (626) 919-4333
- Enumerated
- Jan 27, 2009
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090326000441); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 420 S Glendora Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Denisee Alonso, RDRegistered Dietitian1881283083
- Kimberly Amato, PACPhysician Assistant1477505014
- Lynn Amores, MDFamily Medicine Physician1063553618
- Javanne Brooks, FNPFamily Nurse Practitioner1760884654
- Connie Cajavilca-Torres, MDFamily Medicine Physician1508342924
Verify Diana M. Fernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA201113Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% more Medicare Part D claims than the average physician assistant in 2024
1,062 Medicare Part D claims for 256 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Glipizide187 claims
- Metformin Hcl147 claims
- Humulin N Kwikpen114 claims
- Metformin Hcl Er73 claims
- Humulin N72 claims
- Humulin R66 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
- Southern California Permanente Medical GroupSan Dimas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana M. Fernandez among 14,451 physician assistant records in California
Diana M. Fernandez, P.A. is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 25% of them.
- NPI issued2009 · 25% of these records are older, 73% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2008 · median 2018 among the 7,214 with a school on file
- Record last updated2021 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
51 physician assistant records list a practice address in West Covina
They are 51 of the 2,450 NPPES records with a practice address in West Covina, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in West Covina → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kimberly Amato, PACWest Covina, CA 917901477505014
- Patricia Breen-McDonoughWest Covina, CA 917901861484685
- Darrell Carter, P.A.West Covina, CA 917901407047756
- Ann Du, PACWest Covina, CA 917901841382314
- Patrick Duke, PA-CWest Covina, CA 917901619990447
- Amalia Galvez Tristan, PA-CWest Covina, CA 917901750566410
- Miriam Ha, P.A.West Covina, CA 917901013045558
- Ronald Martinez, PAWest Covina, CA 917901912954348
Common questions
What is Diana M. Fernandez, P.A.'s NPI number?
Diana M. Fernandez, P.A.'s National Provider Identifier (NPI) is 1235377367, issued on Jan 27, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Diana M. Fernandez, P.A. located?
The NPPES record lists a practice address at 420 S Glendora Ave, West Covina, CA, 91790. Phone: (626) 919-4333. Providers update this record themselves, so call before visiting.
How can I verify Diana M. Fernandez, P.A.'s license?
NPPES lists California license number PA201113, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Diana M. Fernandez, P.A. prescribe under Medicare Part D?
In 2024, Diana M. Fernandez, P.A. had 1,062 Medicare Part D claims for 256 beneficiaries; the average among physician assistant prescribers was 830. 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.