Toby Ishizuka, DPM
NPI 1942731021 · Foot & Ankle Surgery Podiatrist · Alameda, CA
Enrolled with Medicare as Practitioner - Podiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Toby Ishizuka, DPM is a Foot & Ankle Surgery Podiatrist provider in Alameda, CA (NPI 1942731021).
Provider details
- NPI number
- 1942731021
- Entity type
- Individual
- Primary specialty
- Foot & Ankle Surgery PodiatristPodiatric Medicine & Surgery Service Providers
- Credential
- DPM
- Sex
- Male
- Sole proprietor
- No
- License
- E5638 (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 tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,368 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 418 | $102 |
| Removal of Noncancer Thickened Skin Growth, 2-4 Growths11056 | 197 | $96 |
| Removal of Fingernails Or Toenails, 1-5 Nails11720 | 151 | $38 |
| Trimming of Dystrophic Nails, Any NumberG0127 | 151 | $14 |
| X-Ray of Foot, Minimum of 3 Views73630 | 111 | $37 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 93 | $142 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 23 | — |
| Meloxicam | 23 | 14 |
| Mupirocin | 21 | 17 |
| Doxycycline Hyclate | 19 | 14 |
| Econazole Nitrate | 18 | — |
| Cefuroxime Axetilbrand: Cefuroxime | 18 | 14 |
| Terbinafine Hcl | 15 | — |
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 , 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,717 across 32 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1580 Valencia St Ste 109San Francisco, CA 94110-4420Phone: (415) 285-7711Fax: (833) 600-1541
Registry dates
- Enumerated
- 2017-03-21
- Last updated
- 2026-03-12
- Certified
- 2026-03-12
Frequently asked questions
- What is Toby Ishizuka's NPI number?
- Toby Ishizuka's National Provider Identifier (NPI) is 1942731021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Toby Ishizuka's specialty?
- Toby Ishizuka is listed in the NPPES registry with a primary specialty of Foot & Ankle Surgery Podiatrist (Podiatric Medicine & Surgery Service Providers).
- Where is Toby Ishizuka located?
- Toby Ishizuka's practice location on file with NPPES is 2059 Clinton Ave Ste 1, Alameda, CA 94501-4379.
- What is Toby Ishizuka's phone number?
- The practice phone number listed in the NPPES registry for Toby Ishizuka is (510) 521-2568.
- Does Toby Ishizuka accept Medicare?
- Toby Ishizuka is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Toby Ishizuka's NPI active?
- Yes — Toby Ishizuka's NPI (1942731021) is active in the NPPES registry as of the last update on 2026-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.