William Sloan, M.D.
NPI 1578750204 · Gastroenterology Physician · West Orange, NJ
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Sloan, M.D. is a Gastroenterology Physician provider in West Orange, NJ (NPI 1578750204).
Provider details
- NPI number
- 1578750204
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA02230000 (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
18 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
- 2007-09-26
- Last updated
- 2014-09-08
Frequently asked questions
- What is William Sloan's NPI number?
- William Sloan's National Provider Identifier (NPI) is 1578750204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sloan's specialty?
- William Sloan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is William Sloan located?
- William Sloan's practice location on file with NPPES is 101 Old Short Hills Rd, West Orange, NJ 07052-1000.
- What is William Sloan's phone number?
- The practice phone number listed in the NPPES registry for William Sloan is (973) 731-4600.
- Does William Sloan accept Medicare?
- William Sloan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Sloan's NPI active?
- Yes — William Sloan's NPI (1578750204) is active in the NPPES registry as of the last update on 2014-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.