Alexia Riggs, PA
Physician Assistant · Newport Beach, CA
Alexia Riggs, PA is a physician assistant with a practice address in Newport Beach, California, and NPI 1902432529, issued on Mar 15, 2020. Check the license (California 57949, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexia Riggs
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 57949 CA
Self-reported in NPPES; status is on the state search - Practice location
- 351 Hospital RD Ste 507, Newport Beach, CA 92663
- Phone
- (949) 642-1361
- Enumerated
- Mar 15, 2020
- Record last updated
- Oct 17, 2022
- Medicare enrollment
- Enrolled (PECOS I20200908000681); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 351 Hospital RD Ste 507
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alexia Riggs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 57949Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average physician assistant in 2024
172 Medicare Part D claims for 116 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 71 claims were for opioids.
Most prescribed
- Tramadol Hcl61 claims
- Estradiol17 claims
- Estradiol (Twice Weekly)15 claims
- Eliquis12 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): 84.4 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
- Hoag ClinicNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
145 physician assistant records list a practice address in Newport Beach
They are 145 of the 4,414 NPPES records with a practice address in Newport Beach, and 14,451 physician assistant records in California.
All 145 in Newport Beach → All 14,451 in California → Every provider in Newport Beach →
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Common questions
What is Alexia Riggs, PA's NPI number?
Alexia Riggs, PA's National Provider Identifier (NPI) is 1902432529, issued on Mar 15, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Alexia Riggs, PA located?
The NPPES record lists a practice address at 351 Hospital RD Ste 507, Newport Beach, CA, 92663. Phone: (949) 642-1361. Providers update this record themselves, so call before visiting.
How can I verify Alexia Riggs, PA's license?
NPPES lists California license number 57949, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Alexia Riggs, PA prescribe under Medicare Part D?
In 2024, Alexia Riggs, PA had 172 Medicare Part D claims for 116 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Alexia Riggs, PA's MIPS final score?
The 2023 MIPS final score is 84.4 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.