Diane Koshimune, DPM
NPI 1972810547 · Foot & Ankle Surgery Podiatrist · San Jose, CA
Enrolled with Medicare as Practitioner - Podiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Koshimune, DPM is a Foot & Ankle Surgery Podiatrist provider in San Jose, CA (NPI 1972810547).
Provider details
- NPI number
- 1972810547
- Entity type
- Individual
- Primary specialty
- Foot & Ankle Surgery PodiatristPodiatric Medicine & Surgery Service Providers
- Credential
- DPM
- Sex
- Female
- Sole proprietor
- No
- License
- E4927 (CA)
Specialties & taxonomies
Podiatric Medicine & Surgery Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 27 | 21 |
| Collagenase Clostridium Hist.brand: Santyl | 20 | 18 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 18 | 18 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-09-02
- Last updated
- 2021-12-21
Frequently asked questions
- What is Diane Koshimune's NPI number?
- Diane Koshimune's National Provider Identifier (NPI) is 1972810547, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Koshimune's specialty?
- Diane Koshimune is listed in the NPPES registry with a primary specialty of Foot & Ankle Surgery Podiatrist (Podiatric Medicine & Surgery Service Providers).
- Where is Diane Koshimune located?
- Diane Koshimune's practice location on file with NPPES is 270 International Cir, San Jose, CA 95119-1130.
- What is Diane Koshimune's phone number?
- The practice phone number listed in the NPPES registry for Diane Koshimune is (408) 972-6370.
- Does Diane Koshimune accept Medicare?
- Diane Koshimune is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Koshimune's NPI active?
- Yes — Diane Koshimune's NPI (1972810547) is active in the NPPES registry as of the last update on 2021-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.