DR. JOHN CARTER GWYNNE DC
NPI 1538860143
Chiropractor - Sports Physician in Katy, TX
About Dr. John Carter Gwynne Dc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN CARTER GWYNNE DC (NPI 1538860143) is an individual sports physician in Katy, Texas, licensed in Texas (15422) and active in the NPI registry since March 2023. He is a graduate of Other (2022).
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 and accepts Medicare assignment
Dr. John Carter Gwynne Dc 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
2Medicare enrollment records show John Gwynne reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Katy, TX 77450
- Reassigned Medicare billing, Texas enrollment
- 3 clinicians in this Medicare group
Houston, TX 77095
- Reassigned Medicare billing, Texas enrollment
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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KATY, TX 77450
KATY, TX 77450
KATY, TX 77450
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 Gwynne's NPI number?
The NPI number for John Gwynne is 1538860143. It was assigned to this individual provider in the NPPES registry on March 13, 2023.
Where is John Gwynne located?
John Gwynne practices at 22167 Westheimer Pkwy, Katy, TX 77450. The listed phone number is (281) 347-8555.
What is John Gwynne's specialty?
The primary specialty registered for this NPI is Chiropractor, specializing in Sports Physician, with taxonomy code 111NS0005X.
Is John Gwynne enrolled in Medicare?
Yes. John Gwynne 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 John Gwynne's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Gwynne reassigns Medicare benefits to 2 organizations: Htx Sports & Spine PLLC (Katy, TX) and Wavelength Chiropractic LLC (Houston, TX). 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 John Gwynne's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Gwynne 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 4 other insurers list John Gwynne 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 Gwynne was last updated on March 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. John Carter Gwynne, DC · NPI 1538860143
Sports Physician provider in Katy, Texas. Individual provider, active in the CMS NPPES registry since March 13, 2023.
## Identity
- **NPI:** 1538860143 (Entity type: Individual)
- **Enumerated:** March 13, 2023
- **Primary specialty:** Chiropractor - Sports Physician · taxonomy 111NS0005X
- **State license:** 15422 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 22167 WESTHEIMER PKWY, Katy, TX 77450-8300
- **Phone:** (281) 347-8555
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Htx Sports & Spine PLLC (NPI 1811670847, Katy, TX); Wavelength Chiropractic LLC (NPI 1225855737, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** March 13, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1538860143) · Data from the CMS NPPES public registry.