William Holder, (M.D.,
NPI 1316168602 · Internal Medicine Physician · Parsippany, NJ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Holder, (M.D., is a Internal Medicine Physician provider in Parsippany, NJ (NPI 1316168602).
Provider details
- NPI number
- 1316168602
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- (M.D.,
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2017-00061 (NC)
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
2 documented practice locations
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
Additional practice locations (1)
- 3205 Randall Pkwy Ste 105Wilmington, NC 28403-2565Phone: (910) 742-9243
Registry dates
- Enumerated
- 2007-05-02
- Last updated
- 2025-05-08
- Certified
- 2025-05-08
Frequently asked questions
- What is William Holder's NPI number?
- William Holder's National Provider Identifier (NPI) is 1316168602, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Holder's specialty?
- William Holder is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Holder located?
- William Holder's practice location on file with NPPES is 285 N Beverwyck Rd, Parsippany, NJ 07054-2252.
- What is William Holder's phone number?
- The practice phone number listed in the NPPES registry for William Holder is (973) 331-9774.
- Does William Holder accept Medicare?
- William Holder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Holder's NPI active?
- Yes — William Holder's NPI (1316168602) is active in the NPPES registry as of the last update on 2025-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.