Ellen Nicastro, MD
NPI 1861604423 · Pediatrics Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Nicastro, MD is a Pediatrics Physician provider in Saint Louis, MO (NPI 1861604423).
Provider details
- NPI number
- 1861604423
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2007010301 (MO)
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
- 2007-05-04
- Last updated
- 2025-04-18
Frequently asked questions
- What is Ellen Nicastro's NPI number?
- Ellen Nicastro's National Provider Identifier (NPI) is 1861604423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Nicastro's specialty?
- Ellen Nicastro is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Ellen Nicastro located?
- Ellen Nicastro's practice location on file with NPPES is 845 N New Ballas Ct, Saint Louis, MO 63141-7134.
- What is Ellen Nicastro's phone number?
- The practice phone number listed in the NPPES registry for Ellen Nicastro is (314) 859-4460.
- Does Ellen Nicastro accept Medicare?
- Ellen Nicastro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Nicastro's NPI active?
- Yes — Ellen Nicastro's NPI (1861604423) is active in the NPPES registry as of the last update on 2025-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.