Masashi Kai
NPI 1336391713 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Valhalla, NY
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Masashi Kai is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Valhalla, NY (NPI 1336391713).
Provider details
- NPI number
- 1336391713
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 266182 (NY)
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 tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
96 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Harvest of Vein Using an Endoscope33508 | 28 | $16 |
| Coronary Artery Bypass Using Artery Graft, 1 Graft33533 | 27 | $1,637 |
| Coronary Artery Bypass Using Vein Or Artery Graft, 2 Grafts33518 | 19 | $406 |
| Insertion of Blood Flow Assist Device in Lower Heart Chamber Through Skin With Review By Radiologist Using Artery Access33990 | 11 | $58 |
| Exposure of Underarm Or Upper Chest Artery With Creation of Conduit34716 | 11 | $368 |
Typical Medicare-allowed amounts for these services range $16–$1,637 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-10-16
- Last updated
- 2021-12-07
- Certified
- 2021-12-07
Frequently asked questions
- What is Masashi Kai's NPI number?
- Masashi Kai's National Provider Identifier (NPI) is 1336391713, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Masashi Kai's specialty?
- Masashi Kai is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Masashi Kai located?
- Masashi Kai's practice location on file with NPPES is 100 Woods Rd, Valhalla, NY 10595-1530.
- What is Masashi Kai's phone number?
- The practice phone number listed in the NPPES registry for Masashi Kai is (914) 493-8381.
- Does Masashi Kai accept Medicare?
- Masashi Kai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Masashi Kai's NPI active?
- Yes — Masashi Kai's NPI (1336391713) is active in the NPPES registry as of the last update on 2021-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.