Margaret Hennessy, M.D.
NPI 1194759498 · Pediatric Adolescent Medicine Physician · Racine, WI
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Hennessy, M.D. is a Pediatric Adolescent Medicine Physician provider in Racine, WI (NPI 1194759498).
Provider details
- NPI number
- 1194759498
- Entity type
- Individual
- Primary specialty
- Pediatric Adolescent Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 39715 (WI)
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
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
- 2006-07-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Margaret Hennessy's NPI number?
- Margaret Hennessy's National Provider Identifier (NPI) is 1194759498, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Hennessy's specialty?
- Margaret Hennessy is listed in the NPPES registry with a primary specialty of Pediatric Adolescent Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Hennessy located?
- Margaret Hennessy's practice location on file with NPPES is 3807 Spring St, Racine, WI 53405-1667.
- What is Margaret Hennessy's phone number?
- The practice phone number listed in the NPPES registry for Margaret Hennessy is (262) 687-8282.
- Does Margaret Hennessy accept Medicare?
- Margaret Hennessy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Hennessy's NPI active?
- Yes — Margaret Hennessy's NPI (1194759498) 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.