Steven Shimoyama, M.D.
Orthopaedic Surgery Physician · Marina Del Rey, CA
Steven Shimoyama, M.D. is an orthopaedic surgery physician with a practice address in Marina Del Rey, California, and NPI 1386663615, issued on Jul 18, 2006. Check the license (California G47794, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven Shimoyama
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- G47794 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4644 Lincoln Blvd, Marina Del Rey, CA 90292
- Phone
- (310) 821-5723
- Enumerated
- Jul 18, 2006
- Record last updated
- Jan 11, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (310) 821-5828
- Medicaid ID
- 954233875 CA
- Medicare enrollment
- Enrolled (PECOS I20080119000149); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1981
- Entity
- Type 1 · individual
Also registered at 4644 Lincoln Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Colbert, M.D.Orthopaedic Surgery Physician1487656286
- Brian Estwick, MDOphthalmology Physician1003889247
- Cornelia Felber, PA-CPhysician Assistant1912035080
- Michael Gorniowsky, M.D.Family Medicine Physician1073567442
- Jeremy Korman, M.D.Surgery Physician1508870171
- Steven Krems, MDInternal Medicine Physician1972605020
Verify Steven Shimoyama in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G47794Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
407 Medicare Part D claims for 128 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D.
Most prescribed
- Meloxicam179 claims
- Nabumetone52 claims
- Methylprednisolone51 claims
- Prednisone50 claims
- Diclofenac Sodium38 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): 0 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).
Industry payments in 2024: $24.89
1 payment: food and beverage; the largest payer was Bioventus LLC. The 15,003 providers of this specialty with any payment received $23,022.89 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.
8 orthopaedic surgery physician records list a practice address in Marina Del Rey
They are 8 of the 711 NPPES records with a practice address in Marina Del Rey, and 2,276 orthopaedic surgery physician records in California.
All 8 in Marina Del Rey → All 2,276 in California → Every provider in Marina Del Rey →
Other orthopaedic surgery physician records in California
- Karim Abdollahi, M.D.Laguna Beach, CA1942240403
- Michael Abdulian, MDGlendale, CA1649469628
- Hussein Abdulrassoul, MDRiverside, CA1972123891
- Douglas Abeles, MDCastro Valley, CA1508961582
- Anthony Abene, MDSan Jose, CA1457437964
- Torgom Abraamyan, M.D.Van Nuys, CA1013370410
- Monther AbuhantashSan Francisco, CA1447041512
- Joshua Acebo, MDPalo Alto, CA1396373734
- Daniel Acevedo, M.D.Thousand Oaks, CA1184856122
- John Adams, MDLos Angeles, CA1215914114
Common questions
What is Steven Shimoyama, M.D.'s NPI number?
Steven Shimoyama, M.D.'s National Provider Identifier (NPI) is 1386663615, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven Shimoyama, M.D. located?
The NPPES record lists a practice address at 4644 Lincoln Blvd, Marina Del Rey, CA, 90292. Phone: (310) 821-5723. Providers update this record themselves, so call before visiting.
How can I verify Steven Shimoyama, M.D.'s license?
NPPES lists California license number G47794, 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.
How much does Steven Shimoyama, M.D. prescribe under Medicare Part D?
In 2024, Steven Shimoyama, M.D. had 407 Medicare Part D claims for 128 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Steven Shimoyama, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 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.