John Maddox, MD
NPI 1801887229 · Pediatrics Physician · Wilmington, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Maddox, MD is a Pediatrics Physician provider in Wilmington, MA (NPI 1801887229).
Provider details
- NPI number
- 1801887229
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 211906 (MA)
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
- 2005-11-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Maddox's NPI number?
- John Maddox's National Provider Identifier (NPI) is 1801887229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Maddox's specialty?
- John Maddox is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is John Maddox located?
- John Maddox's practice location on file with NPPES is 500 Salem St, Wilmington, MA 01887-1200.
- What is John Maddox's phone number?
- The practice phone number listed in the NPPES registry for John Maddox is (978) 988-6209.
- Does John Maddox accept Medicare?
- John Maddox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Maddox's NPI active?
- Yes — John Maddox's NPI (1801887229) 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.