Diane Miye Koshimune, DPM
Foot & Ankle Surgery Podiatrist · San Jose, CA
Diane Miye Koshimune, DPM is a foot & ankle surgery podiatrist with a practice address in San Jose, California, and NPI 1972810547, issued on Sep 2, 2010. Check the license (California E4927, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diane Miye Koshimune
- Credential
- DPM
- Primary taxonomy
- Foot & Ankle Surgery Podiatrist 213ES0103X
- License number
- E4927 CA
Self-reported in NPPES; status is on the state search - Practice location
- 270 International Cir, San Jose, CA 95119
- Phone
- (408) 972-6370
- Enumerated
- Sep 2, 2010
- Record last updated
- Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (408) 972-6204
- Medicare enrollment
- Enrolled (PECOS I20120313000153); accepts Medicare assignment
- Medical or professional school
- William M. Scholl College Of Podiatric Medicine, 2008
- Entity
- Type 1 · individual
8 nearest foot & ankle surgery podiatrist records → All 1,248 in California → Look up another NPI →
Also registered at 270 International Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aaron BoselPhysical Therapist1043649189
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Verify Diane Miye Koshimune in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license E4927Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average foot & ankle surgery podiatrist in 2024
117 Medicare Part D claims for 68 beneficiaries, against an average of 335 among the 7,761 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 28 claims were for opioids.
Most prescribed
- Oxycodone Hcl27 claims
- Santyl20 claims
- Amoxicillin-Clavulanate Potass18 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane Miye Koshimune among 1,248 foot & ankle surgery podiatrist records in California
Diane Miye Koshimune, DPM is one of 1,248 foot & ankle surgery podiatrist records with a practice address in California. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 47% of them.
- NPI issued2010 · 47% of these records are older, 48% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2008 · median 2010 among the 970 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 213ES0103X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Foot & Ankle Surgery Podiatrist providers in California
There are 1,248 foot & ankle surgery podiatrist records in California.
All 1,248 in California → Every provider in San Jose → Foot & Ankle Surgery Podiatrist nationwide →
The 8 foot & ankle surgery podiatrist records with the nearest ZIP codes
- Maylynn Tam-McSorley, DPMSan Jose, CA 951191588951263
- Shengsheng Guan, D.P.MSan Jose, CA 951181396195475
- Hector Cervantes, DPMSan Jose, CA 951161205859584
- Vinncente Truong, DPMSan Jose, CA 951221871756148
- Gerald Austin, D.P.M.San Jose, CA 951231760634513
- Victor Lee, D.P.M.San Jose, CA 951231518920602
- Thomas Elardo, DPMSan Jose, CA 951241023112554
- Jason Homan, DPMSan Jose, CA 951241285064824
Common questions
What is Diane Miye Koshimune, DPM's NPI number?
Diane Miye Koshimune, DPM's National Provider Identifier (NPI) is 1972810547, issued on Sep 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Diane Miye Koshimune, DPM located?
The NPPES record lists a practice address at 270 International Cir, San Jose, CA, 95119. Phone: (408) 972-6370. Providers update this record themselves, so call before visiting.
How can I verify Diane Miye Koshimune, DPM's license?
NPPES lists California license number E4927, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Diane Miye Koshimune, DPM prescribe under Medicare Part D?
In 2024, Diane Miye Koshimune, DPM had 117 Medicare Part D claims for 68 beneficiaries; the average among foot & ankle surgery podiatrist prescribers was 335. 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.