Jonathon Leiser, MD
NPI 1396705117 · Emergency Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathon Leiser, MD is a Emergency Medicine Physician provider in Philadelphia, PA (NPI 1396705117).
Provider details
- NPI number
- 1396705117
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD054358L (PA)
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
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
- 2006-03-24
- Last updated
- 2014-03-17
Frequently asked questions
- What is Jonathon Leiser's NPI number?
- Jonathon Leiser's National Provider Identifier (NPI) is 1396705117, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathon Leiser's specialty?
- Jonathon Leiser is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathon Leiser located?
- Jonathon Leiser's practice location on file with NPPES is 5501 Old York Rd, Philadelphia, PA 19141.
- What is Jonathon Leiser's phone number?
- The practice phone number listed in the NPPES registry for Jonathon Leiser is (215) 456-6679.
- Does Jonathon Leiser accept Medicare?
- Jonathon Leiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathon Leiser's NPI active?
- Yes — Jonathon Leiser's NPI (1396705117) is active in the NPPES registry as of the last update on 2014-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.