DR. RON LEONG M.D.
NPI 1851738538
Internal Medicine - Critical Care Medicine in Philadelphia, PA
About Dr. Ron Leong M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RON LEONG M.D. (NPI 1851738538) is an individual critical care medicine provider in Philadelphia, Pennsylvania, licensed in Georgia (95972) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Emory University Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Ron Leong M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Ron Leong reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Atlanta, GA 30322
- Reassigned Medicare billing, Georgia enrollment
- 4,840 clinicians in this Medicare group
Lagrange, GA 30240
- Reassigned Medicare billing, Georgia enrollment
- 1,506 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Emory University Hospital
Acute Care Hospitals · Atlanta, GAEmory University Hospital Midtown
Acute Care Hospitals · Atlanta, GAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ron Leong's NPI number?
The NPI number for Ron Leong is 1851738538. It was assigned to this individual provider in the NPPES registry on June 4, 2013.
Where is Ron Leong located?
Ron Leong practices at 111 S 11th St Ste G8490, Philadelphia, PA 19107. The listed phone number is (215) 955-6161.
What is Ron Leong's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Ron Leong enrolled in Medicare?
Yes. Ron Leong is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ron Leong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ron Leong reassigns Medicare benefits to 2 organizations: The Emory Clinic Inc (Atlanta, GA) and Emory Specialty Associates, LLC (Lagrange, GA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ron Leong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ron Leong accept?
Health plans from Oscar Health list Ron Leong as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ron Leong affiliated with any hospitals?
According to CMS data, Ron Leong is affiliated with Emory University Hospital and Emory University Hospital Midtown.
When was this NPI record last updated?
The NPPES record for Ron Leong was last updated on January 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Ron Leong, M.D. · NPI 1851738538
Critical Care Medicine physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 4, 2013.
## Identity
- **NPI:** 1851738538 (Entity type: Individual)
- **Enumerated:** June 4, 2013
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 95972 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 S 11TH ST STE G8490, Philadelphia, PA 19107
- **Phone:** (215) 955-6161
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The Emory Clinic Inc (NPI 1396798229, Atlanta, GA); Emory Specialty Associates, LLC (NPI 1407864168, Lagrange, GA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Florida College Of Medicine, class of 2013
## Record status
- **NPPES last updated:** January 29, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1851738538) · Data from the CMS NPPES public registry.