DR. KATHERINE S. RYAN M.D.
NPI 1518155829
Emergency Medicine in Austin, TX
About Dr. Katherine S. Ryan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KATHERINE S. RYAN M.D. (NPI 1518155829) is an individual emergency medicine provider in Austin, Texas, licensed in Texas (T2741) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS, is affiliated with St David's South Austin Medical Center, and is a graduate of Louisiana State University School Of Medicine In Shreveport (2007).
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. Katherine S. Ryan 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 Katherine Ryan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78745
- Reassigned Medicare billing, Texas enrollment
- 32 clinicians in this Medicare group
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
Killeen, TX 76549
- Reassigned Medicare billing, Texas enrollment
- 214 clinicians in this Medicare group
Lafayette, LA 70506
- Reassigned Medicare billing, Louisiana enrollment
- 51 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 3
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.
St David's South Austin Medical Center
Acute Care Hospitals · Austin, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78704 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.
AUSTIN, TX 78704
AUSTIN, TX 78704
AUSTIN, TX 78704
AUSTIN, TX 78704
AUSTIN, TX 78704
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 Katherine Ryan's NPI number?
The NPI number for Katherine Ryan is 1518155829. It was assigned to this individual provider in the NPPES registry on October 11, 2007.
Where is Katherine Ryan located?
Katherine Ryan practices at 901 W Ben White Blvd, Austin, TX 78704. The listed phone number is (737) 246-1245.
What is Katherine Ryan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Katherine Ryan enrolled in Medicare?
Yes. Katherine Ryan 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 Katherine Ryan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Ryan reassigns Medicare benefits to 4 organizations: Premier Provider Health PA (Austin, TX), Longhorn Emergency Medical Associates PA (Austin, TX), Emergency Associates Of Central Texas PA (Killeen, TX) and Congress Emergency Group LLC (Lafayette, LA). 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 Katherine Ryan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Ryan accept?
Health plans from Blue Cross and Blue Shield of Texas, HMO Louisiana, Oscar Insurance Company and UnitedHealthcare list Katherine Ryan 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 Katherine Ryan affiliated with any hospitals?
According to CMS data, Katherine Ryan is affiliated with St David's South Austin Medical Center.
When was this NPI record last updated?
The NPPES record for Katherine Ryan was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Katherine S. Ryan, M.D. · NPI 1518155829
Emergency Medicine physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since October 11, 2007.
## Identity
- **NPI:** 1518155829 (Entity type: Individual)
- **Enumerated:** October 11, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** T2741 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 901 W BEN WHITE BLVD, Austin, TX 78704-6903
- **Phone:** (737) 246-1245
## 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): Premier Provider Health PA (NPI 1013397066, Austin, TX); Longhorn Emergency Medical Associates PA (NPI 1649669672, Austin, TX); Emergency Associates Of Central Texas PA (NPI 1215418280, Killeen, TX); Congress Emergency Group LLC (NPI 1912316944, Lafayette, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Louisiana State University School Of Medicine In Shreveport, class of 2007
## Record status
- **NPPES last updated:** July 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1518155829) · Data from the CMS NPPES public registry.