Michael Shou Kobayashi, MD
Diagnostic Radiology Physician · Stockton, CA
Michael Shou Kobayashi, MD is a diagnostic radiology physician with a practice address in Stockton, California, and NPI 1831317684, issued on Apr 24, 2007. Check the license (California A99348, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Shou Kobayashi
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A99348 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1801 E March LN, Stockton, CA 95210
- Phone
- (209) 475-9871
- Enumerated
- Apr 24, 2007
- Record last updated
- Jul 18, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110921000130); accepts Medicare assignment
- Medical or professional school
- Un Of California, Irvine, College Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 1801 E March LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bader Abu Ghalyoun, MDInterventional Cardiology Physician1740492214
- Agnes Alicar, NURSE PRACTITIONERFamily Nurse Practitioner1629240049
- James Avery, P.A.Physician Assistant1790080182
- Tatiana Chiprez Vargas, ASWClinical Social Worker1851109425
- Josebelo Chong, MDSpecialist1891815791
- John Depolo, M.D.Pulmonary Disease Physician1619907359
Verify Michael Shou Kobayashi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A99348Check 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): 90.6 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 2 group practices
- Modesto Advanced Diagnostic Imaging Medical CenterModesto, CA
- Stockton Diagnostic ImagingStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Shou Kobayashi among 4,500 diagnostic radiology physician records in California
Michael Shou Kobayashi, MD 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. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 41% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2005 · median 2004 among the 3,130 with a school on file
- Record last updated2011 · 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.
All 4,500 in California → Every provider in Stockton → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- David Bowen, MDStockton, CA 952101255419149
- Wuyen David Huang, MDStockton, CA 952101861571630
- Bolar Rao, MDStockton, CA 952101952489866
- Daniel Dietrich, MDStockton, CA 952041053341669
- William Federal, M.D.Stockton, CA 952041659413664
- Jack Funamura, M.D.Stockton, CA 952041407915739
- Pavan Khanna, M.D.Stockton, CA 952041891936795
- Charles Stillman, D.O.Stockton, CA 952041508836453
Common questions
What is Michael Shou Kobayashi, MD's NPI number?
Michael Shou Kobayashi, MD's National Provider Identifier (NPI) is 1831317684, issued on Apr 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael Shou Kobayashi, MD located?
The NPPES record lists a practice address at 1801 E March LN, Stockton, CA, 95210. Phone: (209) 475-9871. Providers update this record themselves, so call before visiting.
How can I verify Michael Shou Kobayashi, MD's license?
NPPES lists California license number A99348, 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 Michael Shou Kobayashi, MD's MIPS final score?
The 2023 MIPS final score is 90.6 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.