MR. LEON S BROOK CRNA
NPI 1811947708
Nurse Anesthetist, Certified Registered in St George, UT
About Mr. Leon S Brook Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. LEON S BROOK CRNA (NPI 1811947708) is an individual nurse anesthetist, certified registered in St George, Utah, licensed in Utah (189560-8901) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Hays Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
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
Mr. Leon S Brook 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
7Medicare enrollment records show Leon Brook reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
St George, UT 84790
- Reassigned Medicare billing, Utah enrollment
- 12 clinicians in this Medicare group
St George, UT 84790
- Reassigned Medicare billing, Utah enrollment
- 34 clinicians in this Medicare group
Dodge City, KS 67801
- Reassigned Medicare billing, Kansas enrollment
- 218 clinicians in this Medicare group
Burleson, TX 76028
- Reassigned Medicare billing, Texas enrollment
- 429 clinicians in this Medicare group
Arlington, TX 76006
- Reassigned Medicare billing, Texas enrollment
- 1,164 clinicians in this Medicare group
Houston, TX 77042
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
- 3,804 clinicians in this Medicare group
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Northeast Medical Group Inc
- 1,824 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 5
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.
Hays Medical Center
Acute Care Hospitals · Hays, KSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 84790 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Leon Brook's NPI number?
The NPI number for Leon Brook is 1811947708. It was assigned to this individual provider in the NPPES registry on May 11, 2006.
Where is Leon Brook located?
Leon Brook practices at 585 E Riverside Dr Ste 100, St George, UT 84790. The listed phone number is (435) 310-5414.
What is Leon Brook's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Leon Brook enrolled in Medicare?
Yes. Leon Brook 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 Leon Brook's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leon Brook reassigns Medicare benefits to 7 organizations: Innovative Anesthesia Solutions PLLC (St George, UT), Amsurg St George Anesthesia, LLC (St George, UT), Hays Medical Center, Inc (Dodge City, KS), Northstar Anesthesia II PA (Burleson, TX), Northstar Anesthesia, PA (Arlington, TX) and 2 more organizations, listed in the Medicare section above. 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 Leon Brook's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Leon Brook accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross Blue Shield of Arizona, Blue Cross and Blue Shield of Kansas, Inc., Blue Cross and Blue Shield of Texas and CareSource and 1 other insurer list Leon Brook 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 Leon Brook affiliated with any hospitals?
According to CMS data, Leon Brook is affiliated with Hays Medical Center.
When was this NPI record last updated?
The NPPES record for Leon Brook was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Mr. Leon S Brook, CRNA · NPI 1811947708
Nurse Anesthetist, Certified Registered physician in St George, Utah. Individual provider, active in the CMS NPPES registry since May 11, 2006.
## Identity
- **NPI:** 1811947708 (Entity type: Individual)
- **Enumerated:** May 11, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 189560-8901 (Utah)
- **Sole proprietor:** No
## Practice location
- **Address:** 585 E RIVERSIDE DR STE 100, St George, UT 84790-7141
- **Phone:** (435) 310-5414
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Innovative Anesthesia Solutions PLLC (NPI 1730766098, St George, UT); Amsurg St George Anesthesia, LLC (NPI 1730452814, St George, UT); Hays Medical Center, Inc (NPI 1902590508, Dodge City, KS); Northstar Anesthesia II PA (NPI 1477066405, Burleson, TX); Northstar Anesthesia, PA (NPI 1912978610, Arlington, TX); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Mayo Medical School, class of 1993
## Record status
- **NPPES last updated:** January 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1811947708) · Data from the CMS NPPES public registry.