DORISSA R RIVERA CRNA
NPI 1497273338
Nurse Anesthetist, Certified Registered in Round Rock, TX
About Dorissa R Rivera Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DORISSA R RIVERA CRNA (NPI 1497273338) is an individual nurse anesthetist, certified registered in Round Rock, Texas, licensed in Texas (AP136398) and active in the NPI registry since August 2017. She is affiliated with Round Rock Medical Center, maintains a secondary practice location in Austin, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Dorissa R Rivera Crna 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
5Medicare enrollment records show Dorissa Rivera reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Round Rock, TX 78664
- Reassigned Medicare billing, Texas enrollment
- 100 clinicians in this Medicare group
Austin, TX 78759
- Reassigned Medicare billing, Texas enrollment
- 840 clinicians in this Medicare group
Austin, TX 78745
- Reassigned Medicare billing, Texas enrollment
- 175 clinicians in this Medicare group
Dallas, TX 75219
- Reassigned Medicare billing, Texas enrollment
- 495 clinicians in this Medicare group
Bradenton, FL 34208
- Reassigned Medicare billing, Texas enrollment
- 195 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 7
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Round Rock Medical Center
Acute Care Hospitals · Round Rock, TXNorth Austin Medical Center
Acute Care Hospitals · Austin, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78664 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.
ROUND ROCK, TX 78664
ROUND ROCK, TX 78664
ROUND ROCK, TX 78664
ROUND ROCK, TX 78664
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 Dorissa Rivera's NPI number?
The NPI number for Dorissa Rivera is 1497273338. It was assigned to this individual provider in the NPPES registry on August 30, 2017.
Where is Dorissa Rivera located?
Dorissa Rivera practices at 2000 S Mays St Ste 201, Round Rock, TX 78664. The listed phone number is (512) 244-4272.
What is Dorissa Rivera's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Dorissa Rivera enrolled in Medicare?
Yes. Dorissa Rivera 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 Dorissa Rivera's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dorissa Rivera reassigns Medicare benefits to 5 organizations: Mark Malone MD PA (Round Rock, TX), Austin Anesthesiology Group, PLLC (Austin, TX), Austin Gastroenterology Anesthesia Associates PLLC (Austin, TX), Independent Physicians Network PLLC (Dallas, TX) and Anesthesia Dynamics LLC (Bradenton, FL). 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 Dorissa Rivera's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dorissa Rivera accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 7 other insurers list Dorissa Rivera 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 Dorissa Rivera affiliated with any hospitals?
According to CMS data, Dorissa Rivera is affiliated with Round Rock Medical Center and North Austin Medical Center.
When was this NPI record last updated?
The NPPES record for Dorissa Rivera was last updated on September 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.