William Klempner, M.D.
NPI 1730255423 · Neurological Surgery Physician · Ridgewood, NJ
William Klempner, M.D. is a Neurological Surgery Physician provider in Ridgewood, NJ (NPI 1730255423).
Provider details
- NPI number
- 1730255423
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA03779700 (NJ)
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
- 2006-11-27
- Last updated
- 2007-07-09
Frequently asked questions
- What is William Klempner's NPI number?
- William Klempner's National Provider Identifier (NPI) is 1730255423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Klempner's specialty?
- William Klempner is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Klempner located?
- William Klempner's practice location on file with NPPES is 225 Dayton St, Ridgewood, NJ 07450-4407.
- What is William Klempner's phone number?
- The practice phone number listed in the NPPES registry for William Klempner is (201) 612-0020.
- Is William Klempner's NPI active?
- Yes — William Klempner's NPI (1730255423) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.