Cliff Bernstein, M.D.
NPI 1689681611 · Diagnostic Radiology Physician · Stony Brook, NY
Cliff Bernstein, M.D. is a Diagnostic Radiology Physician provider in Stony Brook, NY (NPI 1689681611).
Provider details
- NPI number
- 1689681611
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 239334 (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
- 2006-08-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Cliff Bernstein's NPI number?
- Cliff Bernstein's National Provider Identifier (NPI) is 1689681611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cliff Bernstein's specialty?
- Cliff Bernstein is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Cliff Bernstein located?
- Cliff Bernstein's practice location on file with NPPES is Hsc, L4, Rm 120, Stony Brook, NY 11794.
- What is Cliff Bernstein's phone number?
- The practice phone number listed in the NPPES registry for Cliff Bernstein is (631) 444-5400.
- Is Cliff Bernstein's NPI active?
- Yes — Cliff Bernstein's NPI (1689681611) 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.