William Semel, M.D.
NPI 1588624167 · Pediatric Adolescent Medicine Physician · Livingston, NJ
William Semel, M.D. is a Pediatric Adolescent Medicine Physician provider in Livingston, NJ (NPI 1588624167).
Provider details
- NPI number
- 1588624167
- Entity type
- Individual
- Primary specialty
- Pediatric Adolescent Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MA19909 (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
20 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
- 2006-03-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Semel's NPI number?
- William Semel's National Provider Identifier (NPI) is 1588624167, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Semel's specialty?
- William Semel is listed in the NPPES registry with a primary specialty of Pediatric Adolescent Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Semel located?
- William Semel's practice location on file with NPPES is 22 Old Short Hills Rd, Livingston, NJ 07039-5604.
- What is William Semel's phone number?
- The practice phone number listed in the NPPES registry for William Semel is (973) 533-1499.
- Is William Semel's NPI active?
- Yes — William Semel's NPI (1588624167) 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.