Quick answers
- Where does Gregory W. Nelson see patients?
- Medicare's clinician data lists 2 practice locations, including Seguin, TX and New Braunfels, TX. Call before your visit to confirm the address.
- What is Gregory W. Nelson's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Gregory W. Nelson accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory W. Nelson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Gregory W. Nelson?
- (830) 379-8800, as listed in official Medicare / NPI Registry data.
- What is Gregory W. Nelson's NPI number?
- 1033105473. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Gregory W. Nelson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1006 E Kingsbury StSeguin, TX 78155 (830) 379‑8800
- 55 Gruene Park DrNew Braunfels, TX 78130 (830) 379‑8800
Group practices
Medicare enrollment lists Gregory W. Nelson as a member of this group (CMS data updated 2026-10-02).
- Irvin Sahni, M.D. PA.3 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Seguin
Clinicians with the same Medicare primary specialty in Seguin, TX — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1033105473 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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