Ron Leong, M.D.
NPI 1851738538 · Critical Care Medicine (Internal Medicine) Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ron Leong, M.D. is a Critical Care Medicine (Internal Medicine) Physician provider in Philadelphia, PA (NPI 1851738538).
Provider details
- NPI number
- 1851738538
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125-062581 (IL)
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
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 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 (3)
- 1653 W Congress PkwyChicago, IL 60612-3833Phone: (312) 942-2729
- 3400 Spruce StPhiladelphia, PA 19104-4238Phone: (215) 662-3746
- 900 Walnut StPhiladelphia, PA 19107Phone: (215) 955-6161
Registry dates
- Enumerated
- 2013-06-04
- Last updated
- 2024-01-29
- Certified
- 2024-01-29
Frequently asked questions
- What is Ron Leong's NPI number?
- Ron Leong's National Provider Identifier (NPI) is 1851738538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ron Leong's specialty?
- Ron Leong is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Ron Leong located?
- Ron Leong's practice location on file with NPPES is 111 S 11th St Ste G8490, Philadelphia, PA 19107.
- What is Ron Leong's phone number?
- The practice phone number listed in the NPPES registry for Ron Leong is (215) 955-6161.
- Does Ron Leong accept Medicare?
- Ron Leong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ron Leong's NPI active?
- Yes — Ron Leong's NPI (1851738538) is active in the NPPES registry as of the last update on 2024-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.