Quick answers
- Which hospitals does Aaron Mortensen work at?
- Medicare's official clinician data lists Aaron Mortensen at 2 hospitals: Bassett Healthcare and Little Falls Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Aaron Mortensen see patients?
- Medicare's clinician data lists 2 practice locations, including Cooperstown, NY and Delhi, NY. Call before your visit to confirm the address.
- What is Aaron Mortensen's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Aaron Mortensen accept Medicare assignment?
- Yes. Medicare's clinician data says Aaron Mortensen 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 Aaron Mortensen?
- (607) 547-3480, as listed in official Medicare / NPI Registry data.
- What is Aaron Mortensen's NPI number?
- 1215023734. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Aaron Mortensen works
Medicare's Facility Affiliation Data lists Aaron Mortensen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bassett HealthcareCooperstown, NY · Acute Care Hospital · CCN 330136
- Little Falls HospitalLittle Falls, NY · Critical Access Hospital · CCN 331311
Practice locations
Addresses where Aaron Mortensen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Atwell RdCooperstown, NY 13326 (607) 547‑3480
- 460 Andes RdDelhi, NY 13753 (607) 746‑0300
Group practices
Medicare enrollment lists Aaron Mortensen as a member of this group (CMS data updated 2026-10-02).
- Mary Imogene Bassett Hospital763 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Cooperstown
Clinicians with the same Medicare primary specialty in Cooperstown, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Vermont College Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215023734 |
| 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