NPPES file of Aug 9, 2026

Francis Isidoro, M.D.

Nuclear Imaging & Therapy Physician · Stockton, CA

Francis Isidoro, M.D. is a nuclear imaging & therapy physician with a practice address in Stockton, California, and NPI 1548328933, issued on Dec 5, 2006. Check the license (California A91432, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548328933
Name
Francis Isidoro
Credential
M.D.
Primary taxonomy
Nuclear Imaging & Therapy Physician 207UN0902X
License number
A91432 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 5, 2006
Record last updated
Sep 11, 2025
Fax
(209) 466-2600
Medicare enrollment
Enrolled (PECOS I20070718000484); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2320 N California St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jack Funamura, M.D.Diagnostic Radiology Physician1407915739
  2. Janwyn Funamura, M.D.Pediatrics Physician1093786022
  3. Javad Jamshidi, M.D.Diagnostic Ultrasound Physician1982762365

Verify Francis Isidoro in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A91432
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 100 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.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 8 group practices

  1. Beverly Radiology Medical Group IIIEncino, CA
  2. Desert Advanced Imaging Medical CenterRanco Mirage, CA
  3. Inview Imaging Diagnostics Inc A Professional Medical CorporationSan Jose, CA
  4. Michael P Sherman MD Phd A Medical CorporationWalnut Creek, CA
  5. Modesto Advanced Diagnostic Imaging Medical CenterModesto, CA
  6. Norcal ImagingFremont, CA
  7. Nuclear Medicine AssociatesRedding, CA
  8. Stockton Diagnostic ImagingStockton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Francis Isidoro among 28 nuclear imaging & therapy physician records in California

Francis Isidoro, M.D. is one of 28 nuclear imaging & therapy physician records with a practice address in California. 50% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 50% newer
  • In a Medicare fileYes · 50% of these records are
  • In the CMS Doctors and Clinicians fileYes · 32% of these records are
  • Record last updated2025 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207UN0902X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nuclear Imaging & Therapy Physician providers in California

There are 28 nuclear imaging & therapy physician records in California.

The 8 nuclear imaging & therapy physician records with the nearest ZIP codes

  1. Jocelyn Espiritu, M.D.Modesto, CA 953501104818137
  2. Holly Marciniak Thompson, M.D.Santa Clara, CA 950511295962934
  3. Fabio Almeida, M.D.Roseville, CA 956611881691004
  4. Frederick Weiland, M.D.Roseville, CA 956611508805722
  5. Thomas Budinger, M.D.Berkeley, CA 947081992130439
  6. Shelby Miller, M.D.Oakland, CA 946021215082391
  7. John Linfoot, M. D.Lafayette, CA 945491972551679
  8. Evelyn Musni, M.D.Fremont, CA 945381699751222

Common questions

What is Francis Isidoro, M.D.'s NPI number?

Francis Isidoro, M.D.'s National Provider Identifier (NPI) is 1548328933, issued on Dec 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Francis Isidoro, 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 Francis Isidoro, M.D.'s license?

NPPES lists California license number A91432, 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 Francis Isidoro, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 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.