Stephanie Byrne, MD, MPH, MBA
NPI 1821550609 · Pediatrics Physician · Alamo, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Byrne, MD, MPH, MBA is a Pediatrics Physician provider in Alamo, CA (NPI 1821550609).
Provider details
- NPI number
- 1821550609
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH, MBA
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD485561 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
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)
- 757 Westwood Plaza3108 RrumcLos Angeles, CA 90095Phone: (310) 267-9132
Registry dates
- Enumerated
- 2019-04-02
- Last updated
- 2025-08-18
- Certified
- 2025-08-18
Frequently asked questions
- What is Stephanie Byrne's NPI number?
- Stephanie Byrne's National Provider Identifier (NPI) is 1821550609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Byrne's specialty?
- Stephanie Byrne is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Stephanie Byrne located?
- Stephanie Byrne's practice location on file with NPPES is 1505 Saint Alphonsus Way, Alamo, CA 94507-1570.
- What is Stephanie Byrne's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Byrne is (925) 838-7337.
- Does Stephanie Byrne accept Medicare?
- Stephanie Byrne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Byrne's NPI active?
- Yes — Stephanie Byrne's NPI (1821550609) is active in the NPPES registry as of the last update on 2025-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.