Quick answers
- Which hospitals does Dirk G. Asherman work at?
- Medicare's official clinician data lists Dirk G. Asherman at 1 hospital: Northern Light Mercy Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dirk G. Asherman see patients?
- Medicare's clinician data lists 2 practice locations, including Portland, ME and Yarmouth, ME. Call before your visit to confirm the address.
- What is Dirk G. Asherman's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Dirk G. Asherman accept Medicare assignment?
- Medicare's clinician data says Dirk G. Asherman may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Dirk G. Asherman?
- (207) 828-2101, as listed in official Medicare / NPI Registry data.
- What is Dirk G. Asherman's NPI number?
- 1427057611. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dirk G. Asherman works
Medicare's Facility Affiliation Data lists Dirk G. Asherman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northern Light Mercy HospitalPortland, ME · Acute Care Hospital · CCN 200008
Practice locations
Addresses where Dirk G. Asherman is enrolled with Medicare (CMS data updated 2026-10-02).
- 33 Sewall StPortland, ME 04102 (207) 828‑2101
- 50 Forest Falls DrYarmouth, ME 04096
Group practices
Medicare enrollment lists Dirk G. Asherman as a member of these groups (CMS data updated 2026-10-02).
- Riverview Physical Therapy Limited Partnership63 clinicians in the group
- Orthopaedic Associates of Maine PA52 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Portland
Clinicians with the same Medicare primary specialty in Portland, ME — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1427057611 |
| 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