Ken Fujioka, M.D.
Endocrinology, Diabetes & Metabolism Physician · San Diego, CA
Ken Fujioka, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in San Diego, California, and NPI 1811007255, issued on Aug 30, 2006. Check the license (California G59288, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ken Fujioka
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- G59288 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12395 EL Camino Real, San Diego, CA 92130
- Phone
- (858) 794-1250
- Enumerated
- Aug 30, 2006
- Record last updated
- Oct 17, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040422001436); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 12395 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ken Fujioka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G59288Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
250 Medicare Part D claims for 46 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Ozempic54 claims
- Mounjaro49 claims
- Metformin Hcl Er28 claims
- Metformin Hcl20 claims
- Trulicity16 claims
- Topiramate14 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.
Industry payments in 2024: $156,908.80
165 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Bills Medicare through one group practice
- Scripps HealthSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ken Fujioka among 1,131 endocrinology, diabetes & metabolism physician records in California
Ken Fujioka, M.D. is one of 1,131 endocrinology, diabetes & metabolism 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 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1983 · median 2003 among the 779 with a school on file
- Record last updated2017 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in San Diego → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Puneet Arora, MDSan Diego, CA 921301164484960
- Alain BaronSan Diego, CA 921301356845440
- Simon Bruce, M.D.San Diego, CA 921301043648967
- Juan Frias, M.D.San Diego, CA 921301134437601
- Samantha Harris, M.D.San Diego, CA 921301720305436
- Michael Lee, M.D.San Diego, CA 921301760406649
- Adrienne Nassar, M.D.San Diego, CA 921301063625002
- Raymond PlodkowskiSan Diego, CA 921301104831247
Common questions
What is Ken Fujioka, M.D.'s NPI number?
Ken Fujioka, M.D.'s National Provider Identifier (NPI) is 1811007255, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ken Fujioka, M.D. located?
The NPPES record lists a practice address at 12395 EL Camino Real, San Diego, CA, 92130. Phone: (858) 794-1250. Providers update this record themselves, so call before visiting.
How can I verify Ken Fujioka, M.D.'s license?
NPPES lists California license number G59288, 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 Ken Fujioka, M.D. prescribe under Medicare Part D?
In 2024, Ken Fujioka, M.D. had 250 Medicare Part D claims for 46 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
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.