Leland Jay Foshag, M.D.
Surgical Oncology Physician · Los Angeles, CA
Leland Jay Foshag, M.D. is a surgical oncology physician with a practice address in Los Angeles, California, and NPI 1659441293, issued on Nov 9, 2006. Check the license (California G61645, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leland Jay Foshag
- Credential
- M.D.
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- G61645 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11818 Wilshire Blvd, Los Angeles, CA 90025
- Phone
- (310) 479-1215
- Enumerated
- Nov 9, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (310) 943-3144
- Medicare enrollment
- Enrolled (PECOS I20070601000396); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1975
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 250 in California → Look up another NPI →
Also registered at 11818 Wilshire Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leland Jay Foshag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G61645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average surgical oncology physician in 2024
38 Medicare Part D claims, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin12 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 practice group's MIPS final score for 2023 (Medicare payment program): 85.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cedars-Sinai Medical Care FoundationSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leland Jay Foshag among 250 surgical oncology physician records in California
Leland Jay Foshag, M.D. is one of 250 surgical oncology physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 64% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1975 · median 2004 among the 184 with a school on file
- Record last updated2023 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in California
There are 250 surgical oncology physician records in California.
All 250 in California → Every provider in Los Angeles → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Ronald Hurst, M.D.Los Angeles, CA 900251619069820
- Helena Chang, MDLos Angeles, CA 900241306859038
- Yasir AkmalLos Angeles, CA 900271689832966
- Louis Difronzo, MDLos Angeles, CA 900271437220407
- Philip Haigh, MDLos Angeles, CA 900271124199195
- Theodore O'Connell, MDLos Angeles, CA 900271073684007
- Joseph Femino, MDLos Angeles, CA 900331891894739
- Fumito Ito, MD PHDLos Angeles, CA 900331386609584
Common questions
What is Leland Jay Foshag, M.D.'s NPI number?
Leland Jay Foshag, M.D.'s National Provider Identifier (NPI) is 1659441293, issued on Nov 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leland Jay Foshag, M.D. located?
The NPPES record lists a practice address at 11818 Wilshire Blvd, Los Angeles, CA, 90025. Phone: (310) 479-1215. Providers update this record themselves, so call before visiting.
How can I verify Leland Jay Foshag, M.D.'s license?
NPPES lists California license number G61645, 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 Leland Jay Foshag, M.D. prescribe under Medicare Part D?
In 2024, Leland Jay Foshag, M.D. had 38 Medicare Part D claims; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.
What is Leland Jay Foshag, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.7 of 100, reported for the practice group. 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.