Quick answers
- Does Jason Gnasigamany accept Medicare assignment?
- Yes. Medicare's clinician data says Jason Gnasigamany accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Jason Gnasigamany's NPI number?
- 1598388308. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jason Gnasigamany works
Medicare's Facility Affiliation Data lists Jason Gnasigamany at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- CHRISTUS Good Shepherd Medical CenterLongview, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450032
- CHRISTUS Shreveport-Bossier Health SystemShreveport, LA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 190041
- Longview Regional Medical CenterLongview, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450702
- UT Health East Texas Henderson HospitalHenderson, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 450475
- Willis Knighton Medical Center, IncShreveport, LA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 190111
Practice locations
Addresses where Jason Gnasigamany is enrolled with Medicare (CMS data updated October 2, 2026).
- 1815 E 70th StShreveport, LA 71105 (318) 585‑5555
- 3535 N 4th St, Suite 301Longview, TX 75605 (903) 234‑9992
Group practices
Medicare enrollment lists Jason Gnasigamany as a member of these groups (CMS data updated October 2, 2026).
- East Texas Kidney Specialists, PA10 clinicians in the group
- Southern Kidney Associates PLLC6 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Shreveport
Clinicians with the same Medicare primary specialty in Shreveport, LA — not a recommendation.
Other clinicians in East Texas Kidney Specialists, PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of Texas Medical School At San Antonio |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1598388308 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians