Michael S. Yeh, PA-C
Medical Physician Assistant · Upland, CA
Michael S. Yeh, PA-C is a medical physician assistant with a practice address in Upland, California, and NPI 1902378979, issued on Jan 1, 2019. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael S. Yeh
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- Practice location
- 999 San Bernardino RD, Upland, CA 91786
- Phone
- (909) 985-2811
- Enumerated
- Jan 1, 2019
- Record last updated
- Apr 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 999 San Bernardino RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lisa AgrasoNeonatal Clinical Nurse Specialist1407700438
- James Akamine, M.D.Diagnostic Radiology Physician1497790125
- Ahmed Al-WaisiInternal Medicine Physician1871115709
- Donald Alpiner, DOSurgery Physician1811086952
- Alexander ArzooStudent in an Organized Health Care Education/Training Program1891635629
- Liezl Avila, D.O.Emergency Medicine Physician1487064515
Verify Michael S. Yeh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average medical physician assistant in 2024
338 Medicare Part D claims for 211 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 54 claims were for opioids.
Most prescribed
- Ibuprofen38 claims
- Ondansetron Odt36 claims
- Hydrocodone-Acetaminophen31 claims
- Cephalexin28 claims
- Acetaminophen-Codeine21 claims
- Prednisone16 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.
Michael S. Yeh among 3,376 medical physician assistant records in California
Michael S. Yeh, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% 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 74% of them.
- NPI issued2019 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Upland → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Ashley AyestasUpland, CA 917861346104809
- Charles Henderson, PA-CUpland, CA 917861700665536
- Angie LingUpland, CA 917861922643931
- Caitlin Matsumoto, PA-CUpland, CA 917861295104602
- Kristin Mickelson, PA-CUpland, CA 917861982072682
- Daicy Navarro, PA-CUpland, CA 917861588974661
- Steven Sanders, PA-CUpland, CA 917861346556263
- Lynne Drewes, PAUpland, CA 917841811109168
Common questions
What is Michael S. Yeh, PA-C's NPI number?
Michael S. Yeh, PA-C's National Provider Identifier (NPI) is 1902378979, issued on Jan 1, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Yeh, PA-C located?
The NPPES record lists a practice address at 999 San Bernardino RD, Upland, CA, 91786. Phone: (909) 985-2811. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Yeh, PA-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Michael S. Yeh, PA-C prescribe under Medicare Part D?
In 2024, Michael S. Yeh, PA-C had 338 Medicare Part D claims for 211 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.