JOHN MARK MARRS CRNA
NPI 1265530836
Nurse Anesthetist, Certified Registered in Burnet, TX
About John Mark Marrs Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN MARK MARRS CRNA (NPI 1265530836) is an individual nurse anesthetist, certified registered in Burnet, Texas, licensed in Texas (508361) and active in the NPI registry since September 2006.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 (PECOS)
John Mark Marrs Crna is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Marrs reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Keller, TX 76248
- Reassigned Medicare billing, Texas enrollment
- 710 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 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.
Other Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 John Marrs's NPI number?
The NPI number for John Marrs is 1265530836. It was assigned to this individual provider in the NPPES registry on September 20, 2006.
Where is John Marrs located?
John Marrs practices at 3201 S Water St, Burnet, TX 78611. The listed phone number is (512) 715-3364.
What is John Marrs's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is John Marrs enrolled in Medicare?
Yes. John Marrs is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Marrs's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Marrs reassigns Medicare benefits to Endo Sedation LLC (Keller, TX). The 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 John Marrs's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Marrs accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and Molina Healthcare list John Marrs 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.
When was this NPI record last updated?
The NPPES record for John Marrs was last updated on February 26, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.