Ryan Mascio, D.O.
NPI 1134380074 · Pediatrics Physician · Bryn Mawr, PA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Mascio, D.O. is a Pediatrics Physician provider in Bryn Mawr, PA (NPI 1134380074).
Provider details
- NPI number
- 1134380074
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0102202563 (VA)
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
18 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
- 2008-06-23
- Last updated
- 2023-03-20
- Certified
- 2023-03-20
Frequently asked questions
- What is Ryan Mascio's NPI number?
- Ryan Mascio's National Provider Identifier (NPI) is 1134380074, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Mascio's specialty?
- Ryan Mascio is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Mascio located?
- Ryan Mascio's practice location on file with NPPES is 663 W Lancaster Ave, Bryn Mawr, PA 19010-3805.
- What is Ryan Mascio's phone number?
- The practice phone number listed in the NPPES registry for Ryan Mascio is (610) 658-0999.
- Does Ryan Mascio accept Medicare?
- Ryan Mascio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Mascio's NPI active?
- Yes — Ryan Mascio's NPI (1134380074) is active in the NPPES registry as of the last update on 2023-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.