Fred Joseph Simon, MD
Surgery Physician · La Jolla, CA
Fred Joseph Simon, MD is a surgery physician with a practice address in La Jolla, California, and NPI 1568525566, issued on Dec 19, 2006. Check the license (California C42394, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Fred Joseph Simon
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- C42394 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9888 Genesee Ave, La Jolla, CA 92037
- Phone
- (619) 990-1344
- Enumerated
- Dec 19, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (858) 626-6354
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 9888 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lesly Aguilar TaboraNeurology Physician1467638601
- Iman AutmanMedical-Surgical Clinical Nurse Specialist1184579070
- Mariah Baughn, MDAnatomic Pathology & Clinical Pathology Physician1205032752
- Justin BlackmonPhysician Assistant1699182832
- Julie Bornhoeft, MS, RDRegistered Dietitian1740721760
- Maja Boyd, MSN, RN, AGCNS-BCAdult Health Clinical Nurse Specialist1992294847
Verify Fred Joseph Simon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C42394Check 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 practice group's MIPS final score for 2023 (Medicare payment program): 89 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).
Fred Joseph Simon among 3,118 surgery physician records in California
Fred Joseph Simon, MD is one of 3,118 surgery physician records with a practice address in California. 75% 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, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 surgery physician records list a practice address in La Jolla
They are 43 of the 3,648 NPPES records with a practice address in La Jolla, and 3,118 surgery physician records in California.
All 3,118 in California → Every provider in La Jolla → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Pedro Baron, M.D.La Jolla, CA 920371639194681
- Sunil Bhoyrul, M.D.La Jolla, CA 920371366559320
- William Fuller, M.D.La Jolla, CA 920371598747065
- Paul Hyde, M.D.La Jolla, CA 920371225056906
- Frank Kennedy, M.D.La Jolla, CA 920371407957509
- Ayemoethu Ma, M.D.La Jolla, CA 920371093811176
- Cheryl Olson, M.D.La Jolla, CA 920371043238728
- Marshall Ravden, MDLa Jolla, CA 920371528135423
Common questions
What is Fred Joseph Simon, MD's NPI number?
Fred Joseph Simon, MD's National Provider Identifier (NPI) is 1568525566, issued on Dec 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Fred Joseph Simon, MD located?
The NPPES record lists a practice address at 9888 Genesee Ave, La Jolla, CA, 92037. Phone: (619) 990-1344. Providers update this record themselves, so call before visiting.
How can I verify Fred Joseph Simon, MD's license?
NPPES lists California license number C42394, 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 Fred Joseph Simon, MD's MIPS final score?
The 2023 MIPS final score is 89 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.