Sophia Louise Howard Larriva
Physician Assistant · Los Angeles, CA
Sophia Louise Howard Larriva is a physician assistant with a practice address in Los Angeles, California, and NPI 1376191718, issued on Aug 29, 2019. Check the license (California PA64945, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sophia Louise Howard Larriva
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA64945 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1520 San Pablo St Ste 1000, Los Angeles, CA 90033
- Phone
- (323) 442-5100
- Enumerated
- Aug 29, 2019
- Record last updated
- Jul 31, 2026
- Medicare enrollment
- Enrolled (PECOS I20250219002488); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1520 San Pablo St Ste 1000
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Apurva Akkad, MDInfectious Disease Physician1760879340
- Edris Alderwish, M.D.Interventional Cardiology Physician1285959858
- Christine Alexopoulos, PA-CMedical Physician Assistant1235862210
- Vahe Arabian, PACMedical Physician Assistant1295799021
Verify Sophia Louise Howard Larriva in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA64945Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 92.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $21.08
1 payment: food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). 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 3 group practices
- Antaki And Associates Infectious Disease Medical Group IncGlendale, CA
- Carbon Health Medical Group OF California PCLos Angeles, CA
- Willow Brook Critical Care Medical Group IncGlendale, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sophia Louise Howard Larriva among 14,451 physician assistant records in California
Sophia Louise Howard Larriva 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
- Graduated2021 · median 2018 among the 7,214 with a school on file
- Record last updated2026 · 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).
935 physician assistant records list a practice address in Los Angeles
They are 935 of the 69,537 NPPES records with a practice address in Los Angeles, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Los Angeles → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Bryan Block, P.A.-CLos Angeles, CA 900331982627881
- Dawn Fishback, P.A.-CLos Angeles, CA 900331568680874
- Robert Harper, PA-CLos Angeles, CA 900331134234545
- Lillie Hudson, P.A.Los Angeles, CA 900331902946007
- Sunitha Husson, PA-CLos Angeles, CA 900331962446740
- Jose Lopez, PACLos Angeles, CA 900331245364785
- Oscar Miles-Smith, PALos Angeles, CA 900331336295526
- Eva Moya, PA-CLos Angeles, CA 900331295885820
Common questions
What is Sophia Louise Howard Larriva's NPI number?
Sophia Louise Howard Larriva's National Provider Identifier (NPI) is 1376191718, issued on Aug 29, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Sophia Louise Howard Larriva located?
The NPPES record lists a practice address at 1520 San Pablo St Ste 1000, Los Angeles, CA, 90033. Phone: (323) 442-5100. Providers update this record themselves, so call before visiting.
How can I verify Sophia Louise Howard Larriva's license?
NPPES lists California license number PA64945, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is Sophia Louise Howard Larriva's MIPS final score?
The 2023 MIPS final score is 92.3 of 100. 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.