Jack Leonard Funamura, M.D.
Diagnostic Radiology Physician · Stockton, CA
Jack Leonard Funamura, M.D. is a diagnostic radiology physician with a practice address in Stockton, California, and NPI 1407915739, issued on Dec 6, 2006. Check the license (California G35134, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jack Leonard Funamura
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- G35134 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2320 N California St, Stockton, CA 95204
- Phone
- (209) 466-2000
- Enumerated
- Dec 6, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (209) 466-2600
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 2320 N California St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janwyn Funamura, M.D.Pediatrics Physician1093786022
- Francis Isidoro, M.D.Nuclear Imaging & Therapy Physician1548328933
- Javad Jamshidi, M.D.Diagnostic Ultrasound Physician1982762365
Verify Jack Leonard Funamura in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G35134Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jack Leonard Funamura among 4,500 diagnostic radiology physician records in California
Jack Leonard Funamura, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileNo · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 4,500 in California → Every provider in Stockton → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Daniel Dietrich, MDStockton, CA 952041053341669
- William Federal, M.D.Stockton, CA 952041659413664
- Pavan Khanna, M.D.Stockton, CA 952041891936795
- Charles Stillman, D.O.Stockton, CA 952041508836453
- Nazar Alsaffar, MDStockton, CA 952031922099332
- David Bowen, MDStockton, CA 952101255419149
- Wuyen David Huang, MDStockton, CA 952101861571630
- Michael Kobayashi, MDStockton, CA 952101831317684
Common questions
What is Jack Leonard Funamura, M.D.'s NPI number?
Jack Leonard Funamura, M.D.'s National Provider Identifier (NPI) is 1407915739, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jack Leonard Funamura, M.D. located?
The NPPES record lists a practice address at 2320 N California St, Stockton, CA, 95204. Phone: (209) 466-2000. Providers update this record themselves, so call before visiting.
How can I verify Jack Leonard Funamura, M.D.'s license?
NPPES lists California license number G35134, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.