RONALD M. CASTRO CRNA
NPI 1821058447
Nurse Anesthetist, Certified Registered in Round Rock, TX

Q: What is Ronald Castro's NPI number?

The NPI number for Ronald Castro is 1821058447. It was assigned to this individual provider in the NPPES registry on March 27, 2006.

Q: What is Ronald Castro's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Castro was last updated on January 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since March 27, 2006Accepts Medicare Assignment

2000 S MAYS ST STE 201, ROUND ROCK, TX 78664(512) 244-4272 Get Directions Write a Review

NPPES record last updated: January 6, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 6, 2021, Mar 25, 2020 (2 updates tracked since 2020).

On this page

About Ronald M. Castro Crna NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RONALD M. CASTRO CRNA (NPI 1821058447) is an individual nurse anesthetist, certified registered in Round Rock, Texas, licensed in Texas (AP104232) and active in the NPI registry since March 2006. He maintains a secondary practice location in Austin and is a graduate of Other (1989).

NPPES Registry Identity

NPI1821058447

Entity TypeIndividualMale

Primary Taxonomy367500000X

Provider Legal NameRONALD M. CASTROCredential: CRNA

Location Address2000 S MAYS ST STE 201Round Rock, TX 78664-7580

Mailing Address2000 S Mays St, Ste 201Round Rock, TX 78664-7580 · (512) 244-4272 · Fax (512) 244-2895

Phone(512) 244-4272

Sole ProprietorNo

Medical School CMSOtherGraduated 1989

Enumeration DateMarch 27, 2006

Last NPPES UpdateJanuary 6, 20212 updates tracked since enumeration

NPPES CertifiedJanuary 6, 2021

✔ NPI 1821058447 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367500000X

Licenses✔ Licensed in TX · AP104232✔ Licensed in TX · 580093

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.

2000 S MAYS ST STE 201, Round Rock, TX 78664

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Secondary Practice Location 1

Location 18140 N Mopac Expy Ste 3-210Austin, TX 78759-8862 · Phone (512) 343-2292

Other Identifiers 3

Other040648TX · Crna Certificate

Medicaid088933905TX

Medicaid0889339-03TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Harbor Health, Moda Health Plan, Inc. and more.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

Ronald M. Castro 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 ID1557393022

PECOS Enrollment IDI20050906000454

Medicare Billing Reassignment

Medicare enrollment records show Ronald Castro reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mark Malone MD PA

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

NPI 1407057250 (512) 244-4272

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 4

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.

39 services39 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.

32 services32 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.

22 services22 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.

13 services13 patients

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.

SHELBY E WASIL PA-C

Physician Assistant