Quick answers
- Does Grant C. Paterson accept Medicare assignment?
- Yes. Medicare's clinician data says Grant C. Paterson 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 Grant C. Paterson's NPI number?
- 1689310435. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Grant C. Paterson works
Medicare's Facility Affiliation Data lists Grant C. Paterson 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.
- Mercy Hospital LebanonLebanon, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260059
- Mercy Hospital SpringfieldSpringfield, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260065
Practice locations
Addresses where Grant C. Paterson is enrolled with Medicare (CMS data updated October 2, 2026).
- 608 Old Route 66Saint Robert, MO 65584 (573) 336‑5100
Group practices
Medicare enrollment lists Grant C. Paterson as a member of this group (CMS data updated October 2, 2026).
- Mercy Clinic Springfield Communities1,120 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Saint Robert
Clinicians with the same Medicare primary specialty in Saint Robert, MO — not a recommendation.
Other clinicians in Mercy Clinic Springfield Communities
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 2022 (4 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689310435 |
| 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