Robert Fonseca, PH.D, PA-C
NPI 1790913929 · Medical Physician Assistant · Downey, CA
Robert Fonseca, PH.D, PA-C is a Medical Physician Assistant provider in Downey, CA (NPI 1790913929).
Provider details
- NPI number
- 1790913929
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PH.D, PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA13968 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 83 | 47 |
| Losartan Potassium | 56 | 28 |
| Amlodipine Besylate | 48 | 33 |
| Meloxicam | 43 | 34 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 41 | 40 |
| Trazodone Hcl | 39 | 20 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-25
- Last updated
- 2024-04-26
- Certified
- 2024-04-26
Frequently asked questions
- What is Robert Fonseca's NPI number?
- Robert Fonseca's National Provider Identifier (NPI) is 1790913929, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Fonseca's specialty?
- Robert Fonseca is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Robert Fonseca located?
- Robert Fonseca's practice location on file with NPPES is 9449 Imperial Hwy # B315, Downey, CA 90242-2814.
- What is Robert Fonseca's phone number?
- The practice phone number listed in the NPPES registry for Robert Fonseca is (562) 657-4530.
- Is Robert Fonseca's NPI active?
- Yes — Robert Fonseca's NPI (1790913929) is active in the NPPES registry as of the last update on 2024-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.