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William Backus, M.D.
NPI 1316953565 · Anesthesiology Physician · Stony Brook, NY
William Backus, M.D. is a Anesthesiology Physician provider in Stony Brook, NY (NPI 1316953565).
Provider details
- NPI number
- 1316953565
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 153043 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
Health Sciences Center
L4, #060
Stony Brook, NY 11794-8480
Phone: (631) 444-2975
Approximate (ZIP-level) locationGet directions
Mailing address
P.o. Box 1559
Stony Brook, NY 11794
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Backus's NPI number?
- William Backus's National Provider Identifier (NPI) is 1316953565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Backus's specialty?
- William Backus is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Backus located?
- William Backus's practice location on file with NPPES is Health Sciences Center, Stony Brook, NY 11794-8480.
- What is William Backus's phone number?
- The practice phone number listed in the NPPES registry for William Backus is (631) 444-2975.
- Is William Backus's NPI active?
- Yes — William Backus's NPI (1316953565) 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.