Karen Yan Yi, PA-C
Surgical Physician Assistant · Alhambra, CA
Karen Yan Yi, PA-C is a surgical physician assistant with a practice address in Alhambra, California, and NPI 1689000614, issued on Sep 23, 2013. Check the license (California PA23249, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Yan Yi
- Credential
- PA-C
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- PA23249 CA
Self-reported in NPPES; status is on the state search - Practice location
- 707 S Garfield Ave FL 2, Alhambra, CA 91801
- Phone
- (626) 282-1600
- Enumerated
- Sep 23, 2013
- Record last updated
- Apr 10, 2025
- Fax
- (626) 656-1261
- Medicare enrollment
- Enrolled (PECOS I20140516000872); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 1,075 in California → Look up another NPI →
Also registered at 707 S Garfield Ave FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph FungOrthopaedic Surgery Physician1649874504
- Mark Hsiao, M.D.Orthopaedic Surgery of the Spine Physician1114008984
- Jonathan KoeSurgical Physician Assistant1053177147
- Vu Le, MDOrthopaedic Foot and Ankle Surgery Physician1396227153
- Jose Robaina, MDSports Medicine (Orthopaedic Surgery) Physician1780181107
- Alan Sze, PA-CPhysician Assistant1083450548
Verify Karen Yan Yi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA23249Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average surgical physician assistant in 2024
66 Medicare Part D claims for 49 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Meloxicam11 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.
Industry payments in 2024: $210.75
2 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 7,578 providers of this specialty with any payment received $703.95 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
- Pacific Orthopaedic Medical Group IncAlhambra, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Yan Yi among 1,075 surgical physician assistant records in California
Karen Yan Yi, PA-C 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 2013, is newer than 60% of them.
- NPI issued2013 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2013 · median 2012 among the 649 with a school on file
- Record last updated2025 · 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 Alhambra → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Ying Dong, PA-CAlhambra, CA 918011407196454
- Jonathan KoeAlhambra, CA 918011053177147
- Taylor BeardtAlhambra, CA 918031619717782
- Elaine ChenWest Covina, CA 917901083248587
- Anlanh-Jennifer Nguyen, PA-CUpland, CA 917861104502814
- An Tam Nguyen, PA-CUpland, CA 917861295229235
- Linda Tai, PA-CUpland, CA 917861386095339
- Benjamin IrahetaPomona, CA 917681194647958
Common questions
What is Karen Yan Yi, PA-C's NPI number?
Karen Yan Yi, PA-C's National Provider Identifier (NPI) is 1689000614, issued on Sep 23, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Karen Yan Yi, PA-C located?
The NPPES record lists a practice address at 707 S Garfield Ave FL 2, Alhambra, CA, 91801. Phone: (626) 282-1600. Providers update this record themselves, so call before visiting.
How can I verify Karen Yan Yi, PA-C's license?
NPPES lists California license number PA23249, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Yan Yi, PA-C prescribe under Medicare Part D?
In 2024, Karen Yan Yi, PA-C had 66 Medicare Part D claims for 49 beneficiaries; the average among surgical physician assistant prescribers was 304. 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.