Marion Joseph Fedoruk, MD
Occupational Medicine Physician · Irvine, CA
Marion Joseph Fedoruk, MD is an occupational medicine physician with a practice address in Irvine, California, and NPI 1265500581, issued on Dec 4, 2006. Check the license (California 000000G39629, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marion Joseph Fedoruk
- Credential
- MD
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License number
- 000000G39629 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19722 Macarthur Blvd, Irvine, CA 92612
- Phone
- (949) 824-8641
- Enumerated
- Dec 4, 2006
- Record last updated
- Nov 14, 2022
- Medicare enrollment
- Enrolled (PECOS I20080310000697); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 19722 Macarthur Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diane Basurto, RDRegistered Dietitian1316501539
- Hyejin Cho, RDRegistered Dietitian1053137133
- Karen Deck, N.P.Family Nurse Practitioner1265652671
- Amanda Gebhart, RD, CNSCRegistered Dietitian1841956422
- Jean Gehricke, PH.D.Clinical Psychologist1073742854
- Juliette Gonzalez, RDRegistered Dietitian1598482176
Verify Marion Joseph Fedoruk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 000000G39629Check 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): 100 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
- UC RegentsOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Occupational Medicine Physician providers in California
There are 415 occupational medicine physician records in California.
Other occupational medicine physician records in California
- Jean Abbe, M.D.San Francisco, CA1316163231
- Belayneh Abejie, MDFresno, CA1831210756
- Rajy Abulhosn, M.D.San Diego, CA1396753703
- Aboaba Afilaka, M.D.Hilmar, CA1184603706
- Taha Ahmad, MDPanorama City, CA1629126669
- Michael Ajao, M.D.San Diego, CA1871798207
- Zaid Al-Faham, M.D., MPHRiverside, CA1871858910
- A. Al-Pachachi, M.D.Vernon, CA1689786790
- Patricia Alexander, O.T.R./LPaso Robles, CA1083612113
- Nima Alipour, D.O.Hawthorne, CA1639300106
Common questions
What is Marion Joseph Fedoruk, MD's NPI number?
Marion Joseph Fedoruk, MD's National Provider Identifier (NPI) is 1265500581, issued on Dec 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marion Joseph Fedoruk, MD located?
The NPPES record lists a practice address at 19722 Macarthur Blvd, Irvine, CA, 92612. Phone: (949) 824-8641. Providers update this record themselves, so call before visiting.
How can I verify Marion Joseph Fedoruk, MD's license?
NPPES lists California license number 000000G39629, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Marion Joseph Fedoruk, MD's MIPS final score?
The 2023 MIPS final score is 100 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.