GREGORY SAINNOVAL M.D.
NPI 1164555272
Surgery in Lebanon, MO
About Gregory Sainnoval M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY SAINNOVAL M.D. (NPI 1164555272) is an individual surgery provider in Lebanon, Missouri, licensed in Missouri (2020029424) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Lebanon, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Gregory Sainnoval M.d. 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
4Medicare enrollment records show Gregory Sainnoval reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lebanon, MO 65536
- Reassigned Medicare billing, Missouri enrollment
- Also billed through NPI 1245277631 (Missouri)
- 1,487 clinicians in this Medicare group
Warsaw, MO 65355
- Reassigned Medicare billing, Missouri enrollment
- 220 clinicians in this Medicare group
Cassville, WI 53806
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1255339867 (Wisconsin)
- 53 clinicians in this Medicare group
Adams, WI 53910
- Reassigned Medicare billing, Wisconsin enrollment
- 397 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital Lebanon
Acute Care Hospitals · Lebanon, MOAspirus Riverview Hospital & Clinics Inc
Acute Care Hospitals · Wisconsin Rapids, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 65536 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Sainnoval's NPI number?
The NPI number for Gregory Sainnoval is 1164555272. It was assigned to this individual provider in the NPPES registry on March 14, 2007.
Where is Gregory Sainnoval located?
Gregory Sainnoval practices at 100 Hospital Dr, Lebanon, MO 65536. The listed phone number is (417) 533-6100.
What is Gregory Sainnoval's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Gregory Sainnoval enrolled in Medicare?
Yes. Gregory Sainnoval 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 Gregory Sainnoval's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Sainnoval reassigns Medicare benefits to 4 organizations: Mercy Clinic-Springfield Communities (Lebanon, MO), Golden Valley Memorial Hospital District (Warsaw, MO), Grant Regional Health Center, Inc (Cassville, WI) and Aspirus Riverview Hospital & Clinics, Inc. (Adams, WI). 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 Sainnoval's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Sainnoval accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 8 other insurers list Gregory Sainnoval 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.
Is Gregory Sainnoval affiliated with any hospitals?
According to CMS data, Gregory Sainnoval is affiliated with Mercy Hospital Lebanon and Aspirus Riverview Hospital & Clinics Inc.
When was this NPI record last updated?
The NPPES record for Gregory Sainnoval was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.