William Krief, MD
NPI 1255401691 · Emergency Medicine Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Krief, MD is a Emergency Medicine Physician provider in New Hyde Park, NY (NPI 1255401691).
Provider details
- NPI number
- 1255401691
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 209839 (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
19 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
- 2006-11-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Krief's NPI number?
- William Krief's National Provider Identifier (NPI) is 1255401691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Krief's specialty?
- William Krief is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Krief located?
- William Krief's practice location on file with NPPES is Lijmc-Pediatric Emergency Medicine, New Hyde Park, NY 11040.
- What is William Krief's phone number?
- The practice phone number listed in the NPPES registry for William Krief is (718) 470-7640.
- Does William Krief accept Medicare?
- William Krief is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Krief's NPI active?
- Yes — William Krief's NPI (1255401691) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.