Rose-Ann Guevarra
Physician Assistant · Fullerton, CA
Rose-Ann Guevarra is a physician assistant with a practice address in Fullerton, California, and NPI 1154889327, issued on Mar 6, 2019. Check the license (California 56481, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rose-Ann Guevarra
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 56481 CA
Self-reported in NPPES; status is on the state search - Practice location
- 735 W Hill Ave, Fullerton, CA 92832
- Phone
- (714) 270-5863
- Enumerated
- Mar 6, 2019
- Record last updated
- Mar 6, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201008001439); 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 →
Verify Rose-Ann Guevarra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 56481Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average physician assistant in 2024
187 Medicare Part D claims for 55 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Warfarin Sodium33 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 99.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- City OF Hope Medical FoundationLong Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rose-Ann Guevarra among 14,451 physician assistant records in California
Rose-Ann Guevarra 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 2019, is newer than 56% of them.
- NPI issued2019 · 56% of these records are older, 38% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · median 2018 among the 7,214 with a school on file
- Record last updated2019 · 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).
138 physician assistant records list a practice address in Fullerton
They are 138 of the 5,437 NPPES records with a practice address in Fullerton, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Fullerton → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Patricia Buchholtz, PAFullerton, CA 928321104283183
- Julie Gordon, PA-CFullerton, CA 928321629278460
- Nida MansoorFullerton, CA 928321033694054
- Joshua Ramirez, PA-CFullerton, CA 928321750097945
- Shabnam ShahriyariFullerton, CA 928321871258020
- Miriam Thomas, PA-CFullerton, CA 928321598480436
- Makena Ala'Ilima-DaleyFullerton, CA 928311285551739
- Vanessa BaylissFullerton, CA 928311760371629
Common questions
What is Rose-Ann Guevarra's NPI number?
Rose-Ann Guevarra's National Provider Identifier (NPI) is 1154889327, issued on Mar 6, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Rose-Ann Guevarra located?
The NPPES record lists a practice address at 735 W Hill Ave, Fullerton, CA, 92832. Phone: (714) 270-5863. Providers update this record themselves, so call before visiting.
How can I verify Rose-Ann Guevarra's license?
NPPES lists California license number 56481, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Rose-Ann Guevarra prescribe under Medicare Part D?
In 2024, Rose-Ann Guevarra had 187 Medicare Part D claims for 55 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Rose-Ann Guevarra's MIPS final score?
The 2023 MIPS final score is 99.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.