MR. GREGORY SCOTT WALLIS CRNA
NPI 1376698290
Nurse Anesthetist, Certified Registered in Nacogdoches, TX
About Mr. Gregory Scott Wallis Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. GREGORY SCOTT WALLIS CRNA (NPI 1376698290) is an individual nurse anesthetist, certified registered in Nacogdoches, Texas, licensed in Texas (630401) and active in the NPI registry since January 2007.
NPPES Registry Identity
Specialties & Licenses
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)
Mr. Gregory Scott Wallis Crna is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Gregory Wallis reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nacogdoches, TX 75965
- Reassigned Medicare billing, Texas enrollment
- 118 clinicians in this Medicare group
Nacogdoches, TX 75965
- Reassigned Medicare billing, Texas enrollment
- 5 clinicians in this Medicare group
Southlake, TX 76092
- Reassigned Medicare billing, Texas enrollment
- 447 clinicians in this Medicare group
Fort Worth, TX 76109
- Reassigned Medicare billing, Texas enrollment
- 1,612 clinicians in this Medicare group
New Iberia, LA 70563
- Reassigned Medicare billing, Texas enrollment
- 282 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.
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.
NACOGDOCHES, TX 75961
NACOGDOCHES, TX 75961
NACOGDOCHES, TX 75961
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 Gregory Wallis's NPI number?
The NPI number for Gregory Wallis is 1376698290. It was assigned to this individual provider in the NPPES registry on January 23, 2007.
Where is Gregory Wallis located?
Gregory Wallis practices at 1204 N Mound St, Nacogdoches, TX 75961. The listed phone number is (936) 568-8444.
What is Gregory Wallis's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Gregory Wallis enrolled in Medicare?
Yes. Gregory Wallis is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gregory Wallis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Wallis reassigns Medicare benefits to 5 organizations: Grasshopper Anesthesia Services PLLC (Nacogdoches, TX), Texas Anesthesia Partners (Nacogdoches, TX), Texas Anesthesia Partners, PLLC (Southlake, TX), Emergenchealth PLLC (Fort Worth, TX) and Youngs Professional Services LLC (New Iberia, LA). 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 Gregory Wallis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Wallis accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Molina Healthcare and UnitedHealthcare list Gregory Wallis 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 Gregory Wallis was last updated on November 4, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Mr. Gregory Scott Wallis, CRNA · NPI 1376698290
Nurse Anesthetist, Certified Registered physician in Nacogdoches, Texas. Individual provider, active in the CMS NPPES registry since January 23, 2007.
## Identity
- **NPI:** 1376698290 (Entity type: Individual)
- **Enumerated:** January 23, 2007
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 630401 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1204 N MOUND ST, Nacogdoches, TX 75961-4027
- **Phone:** (936) 568-8444
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Grasshopper Anesthesia Services PLLC (NPI 1932635752, Nacogdoches, TX); Texas Anesthesia Partners (NPI 1184656001, Nacogdoches, TX); Texas Anesthesia Partners, PLLC (NPI 1144673468, Southlake, TX); Emergenchealth PLLC (NPI 1467970897, Fort Worth, TX); Youngs Professional Services LLC (NPI 1922178599, New Iberia, LA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 4, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1376698290) · Data from the CMS NPPES public registry.