Michael A. Trofimenko, P.A.-C
Surgical Physician Assistant · Woodland, CA
Michael A. Trofimenko, P.A.-C is a surgical physician assistant with a practice address in Woodland, California, and NPI 1164699344, issued on May 15, 2008. Check the license (California PA19189, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael A. Trofimenko
- Credential
- P.A.-C
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- PA19189 CA
Self-reported in NPPES; status is on the state search - Practice location
- 632 W Gibson RD, Woodland, CA 95695
- Phone
- (530) 668-2600
- Enumerated
- May 15, 2008
- Record last updated
- Mar 29, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (530) 661-2410
- Medicare enrollment
- Enrolled (PECOS I20081007000498); 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 632 W Gibson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amr Abdelaty, MDHospitalist Physician1962996348
- Alan Aceves, PACMedical Physician Assistant1912930983
- Clariza Aguillon-Doms, NPNurse Practitioner1174836993
- Sammy Almashat, M.D.Occupational Medicine Physician1194987578
- Khuram Arif, MDPediatrics Physician1851492268
- Irma Bernal, NPFamily Nurse Practitioner1902553878
Verify Michael A. Trofimenko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA19189Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average surgical physician assistant in 2024
69 Medicare Part D claims for 57 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 61 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen38 claims
- Tramadol Hcl11 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 MIPS final score for 2023 (Medicare payment program): 96.5 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).
Bills Medicare through one group practice
- Dignity Health Medical FoundationWoodland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael A. Trofimenko among 1,075 surgical physician assistant records in California
Michael A. Trofimenko, P.A.-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 2008, is newer than 41% of them.
- NPI issued2008 · 41% of these records are older, 55% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2007 · median 2012 among the 649 with a school on file
- Record last updated2012 · 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 Woodland → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Geraldine Dutra, P.A.Woodland, CA 956951396917043
- Mylinh Bui, PA-CVacaville, CA 956881972665321
- Julieta Murillo, PA-CVacaville, CA 956881891227823
- Casey Pelletier, PA-CVacaville, CA 956881053070144
- Paul Bakke, PA-CRoseville, CA 956611174681563
- Crystal Brust, PA-CRoseville, CA 956611861724353
- Michael Carlson, PARoseville, CA 956611326115726
- Erin CassidyRoseville, CA 956611659887339
Common questions
What is Michael A. Trofimenko, P.A.-C's NPI number?
Michael A. Trofimenko, P.A.-C's National Provider Identifier (NPI) is 1164699344, issued on May 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Michael A. Trofimenko, P.A.-C located?
The NPPES record lists a practice address at 632 W Gibson RD, Woodland, CA, 95695. Phone: (530) 668-2600. Providers update this record themselves, so call before visiting.
How can I verify Michael A. Trofimenko, P.A.-C's license?
NPPES lists California license number PA19189, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Michael A. Trofimenko, P.A.-C prescribe under Medicare Part D?
In 2024, Michael A. Trofimenko, P.A.-C had 69 Medicare Part D claims for 57 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
What is Michael A. Trofimenko, P.A.-C's MIPS final score?
The 2023 MIPS final score is 96.5 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.