DORISSA R RIVERA CRNA
NPI 1497273338
Nurse Anesthetist, Certified Registered in Round Rock, TX

Active since August 30, 2017Accepts Medicare Assignment
2000 S MAYS ST STE 201, ROUND ROCK, TX 78664(512) 244-4272(512) 244-2895 Get Directions Write a Review

NPPES record last updated: September 21, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 21, 2022, Aug 30, 2017 (2 updates tracked since 2017).

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

NPI1497273338
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameDORISSA R RIVERACredential: CRNA
Location Address2000 S MAYS ST STE 201Round Rock, TX 78664-7580
Mailing Address101 W Louis Henna Blvd Ste 300Austin, TX 78728-1203 · (512) 492-3743 · Fax (512) 593-4444
Fax(512) 244-2895
Sole ProprietorYes
Medical School CMSOtherGraduated 2017
Enumeration DateAugust 30, 2017
Last NPPES UpdateSeptember 21, 20222 updates tracked since enumeration
NPPES CertifiedSeptember 21, 2022
✔ NPI 1497273338 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in TX · AP136398
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Also ListedRegistered NurseTaxonomy 163W00000X · License 0821095 (TX)
2000 S MAYS ST STE 201, Round Rock, TX 78664

Secondary Practice Location 1

Location 16000 S Mopac Expy Ste 100Austin, TX 78749-1113 · Phone (512) 244-4272 · Fax (512) 244-2895

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.

PECOS PAC ID244592061
PECOS Enrollment IDI20180314002346

Medicare Billing Reassignments

5

Medicare 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.

Same address
Pain Medicine
2000 S MAYS ST, SUITE 201
Round Rock, TX 78664
  • Reassigned Medicare billing, Texas enrollment
  • 100 clinicians in this Medicare group
Anesthesiology
8140 N MOPAC EXPY STE 3-210
Austin, TX 78759
  • Reassigned Medicare billing, Texas enrollment
  • 840 clinicians in this Medicare group
Anesthesiology
4310 JAMES CASEY ST STE 4B
Austin, TX 78745
  • Reassigned Medicare billing, Texas enrollment
  • 175 clinicians in this Medicare group
Anesthesiology
3625 N HALL ST # 800
Dallas, TX 75219
  • Reassigned Medicare billing, Texas enrollment
  • 495 clinicians in this Medicare group
Anesthesiology
206 2ND ST E
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.

Anesthesia for nerve block and injection procedure, prone position 01992
Anesthesia for nerve block and injection is a procedure to numb specific areas, reducing pain. You'll be positioned face-down (prone) for optimal access to the treatment area. The anesthetic is injected near the nerve, blocking pain signals to the brain.
51 services50 patients
Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back 00300
Anesthesia for procedures on skin, muscles, or nerves of the head, neck, and upper back involves using medication to numb the area or make you unconscious during the procedure. This ensures you don't feel pain or discomfort. It's safe and monitored by professionals.
33 services33 patients
Anesthesia for nerve destruction procedures on spine or spinal cord of lower back accessed through skin using imaging guidance 01940
This is a procedure where anesthesia is applied to numb specific nerves in your lower back. Using imaging guidance, the doctor can accurately locate these nerves through the skin. This is done to alleviate pain by disrupting nerve signals. It's a safe and effective method.
24 services24 patients
Anesthesia for nerve modulation procedure spinal cord or repair of bone of spine of lower back accessed through skin using imaging guidance 01942
Anesthesia for nerve modulation or spine repair involves numbing the lower back area. This is done to ensure you don't feel pain during the procedure. The doctor uses imaging technology to accurately place the anesthetic. This makes the procedure safer and more effective.
20 services19 patients
Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
19 services19 patients
Anesthesia for nerve destruction procedures on spine or spinal cord of neck or upper back accessed through skin using imaging guidance 01939
This procedure involves using anesthesia to numb the area around your spine or spinal cord. The doctor will then use imaging guidance to accurately locate and destroy problematic nerves. This is done through the skin and targets either the neck or upper back area.
17 services17 patients

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, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450718
Location2400 Round Rock AveRound Rock, TX 78681 · Williamson County
Emergency services Birthing friendly

North Austin Medical Center

Acute Care Hospitals · Austin, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450809
Location12221 Mopac Expressway NorthAustin, TX 78758 · Travis County
Emergency services Birthing friendly

Physician 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.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Physician Assistant
2000 S MAYS ST STE 201
ROUND ROCK, TX 78664
Pain Medicine (Interventional Pain Medicine)
2000 S MAYS ST STE 201
ROUND ROCK, TX 78664
Physician Assistant
2000 S MAYS ST STE 201
ROUND ROCK, TX 78664
Nurse Anesthetist, Certified Registered
2000 S MAYS ST STE 201
ROUND ROCK, TX 78664
Pain Medicine (Interventional Pain Medicine)
2000 S MAYS ST STE 201
ROUND ROCK, TX 78664
Nurse Anesthetist, Certified Registered
2000 S MAYS ST STE 201
ROUND ROCK, TX 78664
Physician Assistant
2000 S MAYS ST STE 201
ROUND ROCK, TX 78664
Social Worker (Clinical)
2000 S MAYS ST STE 201
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.