Erin O'Brien, MD
NPI 1558856013 · Pediatrics Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin O'Brien, MD is a Pediatrics Physician provider in Nashville, TN (NPI 1558856013).
Provider details
- NPI number
- 1558856013
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2019033229 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1 Childrens Pl Cb 8116Saint Louis, MO 63110-1002Phone: (314) 454-6148Fax: (314) 454-4633
Registry dates
- Enumerated
- 2018-06-27
- Last updated
- 2025-10-29
- Certified
- 2025-10-29
Frequently asked questions
- What is Erin O'Brien's NPI number?
- Erin O'Brien's National Provider Identifier (NPI) is 1558856013, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin O'Brien's specialty?
- Erin O'Brien is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Erin O'Brien located?
- Erin O'Brien's practice location on file with NPPES is 3601 the Vanderbilt Clinic, Nashville, TN 37232-1002.
- What is Erin O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Erin O'Brien is (615) 322-5000.
- Does Erin O'Brien accept Medicare?
- Erin O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin O'Brien's NPI active?
- Yes — Erin O'Brien's NPI (1558856013) is active in the NPPES registry as of the last update on 2025-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.