Quick answers
- Which hospitals does Gregory Sainnoval work at?
- Medicare's official clinician data lists Gregory Sainnoval at 2 hospitals: Aspirus Riverview Hospital & Clinics Inc and Mercy Hospital Lebanon. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory Sainnoval see patients?
- Medicare's clinician data lists 5 practice locations, including Lebanon, MO, Springfield, MO and Wisconsin Rapids, WI. Call before your visit to confirm the address.
- What is Gregory Sainnoval's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Gregory Sainnoval accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Sainnoval 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 Sainnoval?
- (417) 553-6780, as listed in official Medicare / NPI Registry data.
- What is Gregory Sainnoval's NPI number?
- 1164555272. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory Sainnoval works
Medicare's Facility Affiliation Data lists Gregory Sainnoval at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Riverview Hospital & Clinics IncWisconsin Rapids, WI · Acute Care Hospital · CCN 520033
- Mercy Hospital LebanonLebanon, MO · Acute Care Hospital · CCN 260059
Practice locations
Addresses where Gregory Sainnoval is enrolled with Medicare (CMS data updated 2026-10-02).
- 120 Hospital Dr, Suite 200Lebanon, MO 65536 (417) 553‑6780
- 3231 S National AveSpringfield, MO 65807 (417) 888‑6735
- 410 Dewey StWisconsin Rapids, WI 54494 (715) 423‑6060
- 420 Dewey StWisconsin Rapids, WI 54494 (715) 422‑7750
- 507 S Monroe StLancaster, WI 53813 (608) 723‑2131
Group practices
Medicare enrollment lists Gregory Sainnoval as a member of these groups (CMS data updated 2026-10-02).
- Mercy Clinic Springfield Communities1,120 clinicians in the group
- Aspirus Riverview Hospital and Clinics Inc172 clinicians in the group
- Grant Regional Health Center Inc38 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Missouri
Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164555272 |
| 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 2026-10-02, retrieved 2026-10-29
- 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