Deirdre O'Reilly, MD, MPH
NPI 1548250350 · Neonatal-Perinatal Medicine Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deirdre O'Reilly, MD, MPH is a Neonatal-Perinatal Medicine Physician provider in Worcester, MA (NPI 1548250350).
Provider details
- NPI number
- 1548250350
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Female
- Sole proprietor
- No
- License
- 216802 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2005-10-24
- Last updated
- 2016-06-24
Frequently asked questions
- What is Deirdre O'Reilly's NPI number?
- Deirdre O'Reilly's National Provider Identifier (NPI) is 1548250350, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deirdre O'Reilly's specialty?
- Deirdre O'Reilly is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Deirdre O'Reilly located?
- Deirdre O'Reilly's practice location on file with NPPES is 119 Belmont St, Worcester, MA 01605-2903.
- What is Deirdre O'Reilly's phone number?
- The practice phone number listed in the NPPES registry for Deirdre O'Reilly is (508) 334-6206.
- Does Deirdre O'Reilly accept Medicare?
- Deirdre O'Reilly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deirdre O'Reilly's NPI active?
- Yes — Deirdre O'Reilly's NPI (1548250350) is active in the NPPES registry as of the last update on 2016-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.