Ian Ferguson, M.D.
NPI 1831327436 · Pediatric Rheumatology Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Ferguson, M.D. is a Pediatric Rheumatology Physician provider in New Haven, CT (NPI 1831327436).
Provider details
- NPI number
- 1831327436
- Entity type
- Individual
- Primary specialty
- Pediatric Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 054028 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2009-06-23
- Last updated
- 2015-12-08
Frequently asked questions
- What is Ian Ferguson's NPI number?
- Ian Ferguson's National Provider Identifier (NPI) is 1831327436, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Ferguson's specialty?
- Ian Ferguson is listed in the NPPES registry with a primary specialty of Pediatric Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Ferguson located?
- Ian Ferguson's practice location on file with NPPES is 789 Howard Ave, New Haven, CT 06519-1304.
- What is Ian Ferguson's phone number?
- The practice phone number listed in the NPPES registry for Ian Ferguson is (203) 688-2475.
- Does Ian Ferguson accept Medicare?
- Ian Ferguson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Ferguson's NPI active?
- Yes — Ian Ferguson's NPI (1831327436) is active in the NPPES registry as of the last update on 2015-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.