Katy-Ann Hannigan, DO
NPI 1558351635 · Pediatrics Physician · Gardner, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katy-Ann Hannigan, DO is a Pediatrics Physician provider in Gardner, MA (NPI 1558351635).
Provider details
- NPI number
- 1558351635
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 219096 (MA)
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
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
- 2005-10-28
- Last updated
- 2020-11-16
- Certified
- 2020-11-16
Frequently asked questions
- What is Katy-Ann Hannigan's NPI number?
- Katy-Ann Hannigan's National Provider Identifier (NPI) is 1558351635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katy-Ann Hannigan's specialty?
- Katy-Ann Hannigan is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Katy-Ann Hannigan located?
- Katy-Ann Hannigan's practice location on file with NPPES is 250 Green St, Gardner, MA 01440-1396.
- What is Katy-Ann Hannigan's phone number?
- The practice phone number listed in the NPPES registry for Katy-Ann Hannigan is (978) 630-5030.
- Does Katy-Ann Hannigan accept Medicare?
- Katy-Ann Hannigan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katy-Ann Hannigan's NPI active?
- Yes — Katy-Ann Hannigan's NPI (1558351635) is active in the NPPES registry as of the last update on 2020-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.