Kei Hayashida, MD, PHD
NPI 1033851340 · Emergency Medicine Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kei Hayashida, MD, PHD is a Emergency Medicine Physician provider in New Hyde Park, NY (NPI 1033851340).
Provider details
- NPI number
- 1033851340
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 337831 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-04-08
- Last updated
- 2025-08-13
- Certified
- 2025-08-08
Frequently asked questions
- What is Kei Hayashida's NPI number?
- Kei Hayashida's National Provider Identifier (NPI) is 1033851340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kei Hayashida's specialty?
- Kei Hayashida is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kei Hayashida located?
- Kei Hayashida's practice location on file with NPPES is 27005 76th Ave, New Hyde Park, NY 11040-1402.
- What is Kei Hayashida's phone number?
- The practice phone number listed in the NPPES registry for Kei Hayashida is (631) 968-3271.
- Does Kei Hayashida accept Medicare?
- Kei Hayashida is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kei Hayashida's NPI active?
- Yes — Kei Hayashida's NPI (1033851340) is active in the NPPES registry as of the last update on 2025-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.