Quick answers
- Which hospitals does Colby D. Mahar work at?
- Medicare's official clinician data lists Colby D. Mahar at 1 hospital: Sanford Medical Center Aberdeen. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Colby D. Mahar see patients?
- Medicare's clinician data lists 3 practice locations, including Vermillion, SD, Aberdeen, SD and Clear Lake, SD. Call before your visit to confirm the address.
- What is Colby D. Mahar's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Colby D. Mahar accept Medicare assignment?
- Yes. Medicare's clinician data says Colby D. Mahar 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 Colby D. Mahar?
- (605) 624-9111, as listed in official Medicare / NPI Registry data.
- What is Colby D. Mahar's NPI number?
- 1164221925. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Colby D. Mahar works
Medicare's Facility Affiliation Data lists Colby D. Mahar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sanford Medical Center AberdeenAberdeen, SD · Acute Care Hospital · CCN 430097
Practice locations
Addresses where Colby D. Mahar is enrolled with Medicare (CMS data updated 2026-10-02).
- 20 S Plum StVermillion, SD 57069 (605) 624‑9111
- 2905 3rd Ave SEAberdeen, SD 57401 (605) 626‑4200
- 701 3rd Ave SClear Lake, SD 57226
Group practices
Medicare enrollment lists Colby D. Mahar as a member of this group (CMS data updated 2026-10-02).
- Sanford Health Network351 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), South Dakota →
Other nurse anesthetists in Vermillion
Clinicians with the same Medicare primary specialty in Vermillion, SD — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164221925 |
| 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