C Ozaki, MD
NPI 1700999620 · Vascular Surgery Physician · Boston, MA
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
C Ozaki, MD is a Vascular Surgery Physician provider in Boston, MA (NPI 1700999620).
Provider details
- NPI number
- 1700999620
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME73442 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
701 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) |
|---|---|---|
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 130 | $34 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 84 | $39 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 78 | $22 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $98 |
| Complete Ultrasound Study of Arm and Leg Arteries93923 | 48 | $22 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 46 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$373 across 4 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
Registry dates
- Enumerated
- 2006-08-16
- Last updated
- 2012-06-21
Frequently asked questions
- What is C Ozaki's NPI number?
- C Ozaki's National Provider Identifier (NPI) is 1700999620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is C Ozaki's specialty?
- C Ozaki is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is C Ozaki located?
- C Ozaki's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is C Ozaki's phone number?
- The practice phone number listed in the NPPES registry for C Ozaki is (857) 307-1920.
- Does C Ozaki accept Medicare?
- C Ozaki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is C Ozaki's NPI active?
- Yes — C Ozaki's NPI (1700999620) is active in the NPPES registry as of the last update on 2012-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.