Warren Hayashi, MD
NPI 1346709177 · Emergency Medical Services (Emergency Medicine) Physician · Albany, NY
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Hayashi, MD is a Emergency Medical Services (Emergency Medicine) Physician provider in Albany, NY (NPI 1346709177).
Provider details
- NPI number
- 1346709177
- Entity type
- Individual
- Primary specialty
- Emergency Medical Services (Emergency Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 310617 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 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
318 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 167 | $171 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 103 | $119 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 34 | $71 |
| Critical Care, First 30-74 Minutes99291 | 14 | $205 |
Typical Medicare-allowed amounts for these services range $71–$205 (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
- 2019-03-19
- Last updated
- 2023-10-01
- Certified
- 2023-10-01
Frequently asked questions
- What is Warren Hayashi's NPI number?
- Warren Hayashi's National Provider Identifier (NPI) is 1346709177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Hayashi's specialty?
- Warren Hayashi is listed in the NPPES registry with a primary specialty of Emergency Medical Services (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Hayashi located?
- Warren Hayashi's practice location on file with NPPES is 47 New Scotland Avenue, Albany, NY 12208.
- What is Warren Hayashi's phone number?
- The practice phone number listed in the NPPES registry for Warren Hayashi is (518) 262-3131.
- Does Warren Hayashi accept Medicare?
- Warren Hayashi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Hayashi's NPI active?
- Yes — Warren Hayashi's NPI (1346709177) is active in the NPPES registry as of the last update on 2023-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.