Colleen Brennan, MD
NPI 1912294000 · Neonatal-Perinatal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Brennan, MD is a Neonatal-Perinatal Medicine Physician provider in Saint Louis, MO (NPI 1912294000).
Provider details
- NPI number
- 1912294000
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2014011569 (MO)
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
14 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
- 2011-07-08
- Last updated
- 2025-04-15
Frequently asked questions
- What is Colleen Brennan's NPI number?
- Colleen Brennan's National Provider Identifier (NPI) is 1912294000, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Brennan's specialty?
- Colleen Brennan is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Colleen Brennan located?
- Colleen Brennan's practice location on file with NPPES is 1 Childrens Pl, Saint Louis, MO 63110-1002.
- What is Colleen Brennan's phone number?
- The practice phone number listed in the NPPES registry for Colleen Brennan is (314) 454-2683.
- Does Colleen Brennan accept Medicare?
- Colleen Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Brennan's NPI active?
- Yes — Colleen Brennan's NPI (1912294000) is active in the NPPES registry as of the last update on 2025-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.