Lois Yang
Surgical Physician Assistant · Santa Maria, CA
Lois Yang is a surgical physician assistant with a practice address in Santa Maria, California, and NPI 1043786791, issued on Oct 21, 2018. Check the license (California 57254, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lois Yang
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- 57254 CA
Self-reported in NPPES; status is on the state search - Practice location
- 316 S Stratford Ave, Santa Maria, CA 93454
- Phone
- (805) 348-3700
- Enumerated
- Oct 21, 2018
- Record last updated
- Sep 26, 2023
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 1,075 in California → Look up another NPI →
Also registered at 316 S Stratford Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Centeno, MDSurgery Physician1467584409
- Margaret Evans, MS, RDNRegistered Dietitian1225562093
- Carol McCloskey, MDSurgery Physician1336114065
- Victoria McCulloch, LCSWSocial Worker1114092590
- Daniel Oh, M.D.Surgery Physician1891790614
Verify Lois Yang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 57254Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average surgical physician assistant in 2024
141 Medicare Part D claims for 94 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. 72 claims were for opioids.
Most prescribed
- Tramadol Hcl38 claims
- Ibuprofen19 claims
- Hydrocodone-Acetaminophen17 claims
- Oxycodone Hcl17 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): 33.5 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).
Lois Yang among 1,075 surgical physician assistant records in California
Lois Yang is one of 1,075 surgical physician assistant records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 76% of them.
- NPI issued2018 · 76% of these records are older, 20% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2023 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in California
There are 1,075 surgical physician assistant records in California.
All 1,075 in California → Every provider in Santa Maria → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Parker DavisSanta Maria, CA 934541942083621
- Margarethe Pappademos, PA-CSanta Maria, CA 934541205106200
- Richa Tiwari, PA-CSanta Maria, CA 934541518433127
- Sylvia Wilson, PA-CSanta Maria, CA 934541902498611
- Etinosa EbaguaSanta Maria, CA 934551700655701
- Sarah Green, P.A.Santa Maria, CA 934551790040459
- David Fraats, PA-CLompoc, CA 934361689203978
- Kristen Viera, PA-CAtascadero, CA 934221225566227
Common questions
What is Lois Yang's NPI number?
Lois Yang's National Provider Identifier (NPI) is 1043786791, issued on Oct 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Lois Yang located?
The NPPES record lists a practice address at 316 S Stratford Ave, Santa Maria, CA, 93454. Phone: (805) 348-3700. Providers update this record themselves, so call before visiting.
How can I verify Lois Yang's license?
NPPES lists California license number 57254, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Lois Yang prescribe under Medicare Part D?
In 2024, Lois Yang had 141 Medicare Part D claims for 94 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
What is Lois Yang's MIPS final score?
The 2023 MIPS final score is 33.5 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.