Mario Dileonardo, MD
NPI 1134104029 · Dermatopathology Physician · Newtown Square, PA
Enrolled with Medicare as Order and Referring Only - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mario Dileonardo, MD is a Dermatopathology Physician provider in Newtown Square, PA (NPI 1134104029).
Provider details
- NPI number
- 1134104029
- Entity type
- Individual
- Primary specialty
- Dermatopathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD037056E (PA)
Specialties & taxonomies
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
20 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
- 2005-12-13
- Last updated
- 2015-06-18
Frequently asked questions
- What is Mario Dileonardo's NPI number?
- Mario Dileonardo's National Provider Identifier (NPI) is 1134104029, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mario Dileonardo's specialty?
- Mario Dileonardo is listed in the NPPES registry with a primary specialty of Dermatopathology Physician (Allopathic & Osteopathic Physicians).
- Where is Mario Dileonardo located?
- Mario Dileonardo's practice location on file with NPPES is 3805 W Chester Pike Bldg D, Newtown Square, PA 19073-2329.
- What is Mario Dileonardo's phone number?
- The practice phone number listed in the NPPES registry for Mario Dileonardo is (800) 257-0117.
- Does Mario Dileonardo accept Medicare?
- Mario Dileonardo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mario Dileonardo's NPI active?
- Yes — Mario Dileonardo's NPI (1134104029) is active in the NPPES registry as of the last update on 2015-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.