Robert Robles Fonseca, PH.D, PA-C
Medical Physician Assistant · Downey, CA
Robert Robles Fonseca, PH.D, PA-C is a medical physician assistant with a practice address in Downey, California, and NPI 1790913929, issued on Jun 25, 2009. Check the license (California PA13968, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert Robles Fonseca
- Credential
- PH.D, PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA13968 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9449 Imperial Hwy # B315, Downey, CA 90242
- Phone
- (562) 657-4530
- Enumerated
- Jun 25, 2009
- Record last updated
- Apr 26, 2024
- Fax
- (562) 657-2987
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Verify Robert Robles Fonseca in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA13968Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% more Medicare Part D claims than the average medical physician assistant in 2024
1,494 Medicare Part D claims for 610 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 107 claims were for opioids.
Most prescribed
- Atorvastatin Calcium83 claims
- Losartan Potassium56 claims
- Amlodipine Besylate48 claims
- Meloxicam43 claims
- Acetaminophen-Codeine41 claims
- Trazodone Hcl39 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.
Robert Robles Fonseca among 3,376 medical physician assistant records in California
Robert Robles Fonseca, PH.D, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% 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 38% of them.
- NPI issued2009 · 38% of these records are older, 58% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Downey → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Temica Boutte, PA-CDowney, CA 902421285795021
- Sally Davis, PADowney, CA 902421467589457
- Shavon Hawkins, PA-CDowney, CA 902421356582431
- Kathleen Newman, PADowney, CA 902421073613063
- Wendy Nguyen, PA-CDowney, CA 902421508249962
- Vanessa Clark, PA-CDowney, CA 902411225588171
- Lizabeth Gonzalez, P.A.Downey, CA 902411972891133
- Yousif Jawad, P.A.Downey, CA 902411780818971
Common questions
What is Robert Robles Fonseca, PH.D, PA-C's NPI number?
Robert Robles Fonseca, PH.D, PA-C's National Provider Identifier (NPI) is 1790913929, issued on Jun 25, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Robert Robles Fonseca, PH.D, PA-C located?
The NPPES record lists a practice address at 9449 Imperial Hwy # B315, Downey, CA, 90242. Phone: (562) 657-4530. Providers update this record themselves, so call before visiting.
How can I verify Robert Robles Fonseca, PH.D, PA-C's license?
NPPES lists California license number PA13968, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Robert Robles Fonseca, PH.D, PA-C prescribe under Medicare Part D?
In 2024, Robert Robles Fonseca, PH.D, PA-C had 1,494 Medicare Part D claims for 610 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.