DR. RYAN RIDENOUR LION MD
NPI 1245791409
Pediatrics in Memphis, TN
About Dr. Ryan Ridenour Lion Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RYAN RIDENOUR LION MD (NPI 1245791409) is an individual pediatrics provider in Memphis, Tennessee, licensed in Tennessee (68473) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ryan Ridenour Lion Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ryan Lion reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Memphis, TN 38105
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: St Jude Childrens Research Hospital Inc
- 367 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 38105 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MEMPHIS, TN 38105
MEMPHIS, TN 38105
MEMPHIS, TN 38105
MEMPHIS, TN 38105
MEMPHIS, TN 38105
MEMPHIS, TN 38105
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 Ryan Lion's NPI number?
The NPI number for Ryan Lion is 1245791409. It was assigned to this individual provider in the NPPES registry on March 28, 2019.
Where is Ryan Lion located?
Ryan Lion practices at 262 Danny Thomas Pl, Memphis, TN 38105. The listed phone number is (901) 595-3300.
What is Ryan Lion's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Ryan Lion enrolled in Medicare?
Yes. Ryan Lion is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ryan Lion's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Lion reassigns Medicare benefits to St Jude Children's Research Hospital, Inc. (Memphis, TN). The 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 Ryan Lion's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Ryan Lion was last updated on August 13, 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. Ryan Ridenour Lion, MD · NPI 1245791409
Pediatrics physician in Memphis, Tennessee. Individual provider, active in the CMS NPPES registry since March 28, 2019.
## Identity
- **NPI:** 1245791409 (Entity type: Individual)
- **Enumerated:** March 28, 2019
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 68473 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 262 DANNY THOMAS PL, Memphis, TN 38105-3678
- **Phone:** (901) 595-3300
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** St Jude Children's Research Hospital, Inc. (NPI 1306335088, Memphis, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 13, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1245791409) · Data from the CMS NPPES public registry.