Gustavo Adolfo Loza, PA-C
Physician Assistant · Santa Ana, CA
Gustavo Adolfo Loza, PA-C is a physician assistant with a practice address in Santa Ana, California, and NPI 1700027703, issued on Mar 20, 2009. Check the license (California PA19788, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gustavo Adolfo Loza
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA19788 CA
Self-reported in NPPES; status is on the state search - Practice location
- 800 N Main St, Santa Ana, CA 92701
- Phone
- (657) 282-6355
- Enumerated
- Mar 20, 2009
- Record last updated
- Mar 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20161005002442); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 800 N Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gustavo Adolfo Loza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA19788Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average physician assistant in 2024
119 Medicare Part D claims for 41 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $25.57
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- St. John's Community HealthLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gustavo Adolfo Loza among 14,451 physician assistant records in California
Gustavo Adolfo Loza, PA-C 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
- Graduated2002 · median 2018 among the 7,214 with a school on file
- Record last updated2023 · 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).
124 physician assistant records list a practice address in Santa Ana
They are 124 of the 8,904 NPPES records with a practice address in Santa Ana, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Santa Ana → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Himelda Churchill, PA-CSanta Ana, CA 927011912472747
- Bailey Frisch, PA-CSanta Ana, CA 927011760046742
- Crystal GilSanta Ana, CA 927011255064390
- Rafael HerreraSanta Ana, CA 927011720399843
- Michael Moreno, PA-CSanta Ana, CA 927011912614298
- Fred Mumia, PHYSICIAN ASSISTANTSanta Ana, CA 927011245491067
- Ramona Obeso, PA-CSanta Ana, CA 927011902092596
- Randi Passero, PA CSanta Ana, CA 927011417933409
Common questions
What is Gustavo Adolfo Loza, PA-C's NPI number?
Gustavo Adolfo Loza, PA-C's National Provider Identifier (NPI) is 1700027703, issued on Mar 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gustavo Adolfo Loza, PA-C located?
The NPPES record lists a practice address at 800 N Main St, Santa Ana, CA, 92701. Phone: (657) 282-6355. Providers update this record themselves, so call before visiting.
How can I verify Gustavo Adolfo Loza, PA-C's license?
NPPES lists California license number PA19788, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gustavo Adolfo Loza, PA-C prescribe under Medicare Part D?
In 2024, Gustavo Adolfo Loza, PA-C had 119 Medicare Part D claims for 41 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.