DR. JAMES FRANCIS LEONI JR. M.D.
NPI 1821394644
Emergency Medicine - Pediatric Emergency Medicine in Madera, CA
About Dr. James Francis Leoni Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES FRANCIS LEONI JR. M.D. (NPI 1821394644) is an individual pediatric emergency medicine provider in Madera, California, licensed in California (A160802) and active in the NPI registry since January 2011. He is enrolled in Medicare PECOS, is affiliated with Baptist Medical Center, and is a graduate of University Of California, Davis School Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses
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. James Francis Leoni Jr. 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
4Medicare enrollment records show James Leoni reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Richland, WA 99352
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: The Association Of Chrmc And University Physicians
- 1,443 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 clinicians in this Medicare group
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 1,511 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,296 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baptist Medical Center
Acute Care Hospitals · San Antonio, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93636 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MADERA, CA 93636
MADERA, CA 93636
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 James Leoni's NPI number?
The NPI number for James Leoni is 1821394644. It was assigned to this individual provider in the NPPES registry on January 27, 2011.
Where is James Leoni located?
James Leoni practices at 9300 Valley Childrens Pl # Fc06, Madera, CA 93636. The listed phone number is (559) 353-3000.
What is James Leoni's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Pediatric Emergency Medicine, with taxonomy code 207PP0204X.
Is James Leoni enrolled in Medicare?
Yes. James Leoni 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 James Leoni's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Leoni reassigns Medicare benefits to 4 organizations: Association Of Chmc And University Physicians (Richland, WA), The Association Of University Physicians (Seattle, WA), Travis County Emergency Physicians PA (Austin, TX) and Baylor College Of Medicine (Houston, TX). 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 James Leoni's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Leoni accept?
Health plans from Ambetter Health, Ambetter from Superior HealthPlan, Antidote Health of TX, Blue Cross and Blue Shield of Texas and Premera Blue Cross Blue Shield of Alaska and 1 other insurer list James Leoni 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 James Leoni affiliated with any hospitals?
According to CMS data, James Leoni is affiliated with Baptist Medical Center.
When was this NPI record last updated?
The NPPES record for James Leoni was last updated on May 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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. James Francis Leoni Jr., M.D. · NPI 1821394644
Pediatric Emergency Medicine physician in Madera, California. Individual provider, active in the CMS NPPES registry since January 27, 2011.
## Identity
- **NPI:** 1821394644 (Entity type: Individual)
- **Enumerated:** January 27, 2011
- **Primary specialty:** Emergency Medicine - Pediatric Emergency Medicine · taxonomy 207PP0204X
- **State license:** A160802 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9300 VALLEY CHILDRENS PL # FC06, Madera, CA 93636-8761
- **Phone:** (559) 353-3000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Association Of Chmc And University Physicians (NPI 1851680664, Richland, WA); The Association Of University Physicians (NPI 1023041159, Seattle, WA); Travis County Emergency Physicians PA (NPI 1962440933, Austin, TX); Baylor College Of Medicine (NPI 1104867175, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Davis School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** May 20, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821394644) · Data from the CMS NPPES public registry.