Dirk G. Asherman, M.D.
Orthopedic Surgery (CMS) · Portland, ME
At a glance
33 Sewall St, Portland, ME 04102-2603
Published activity: Lower limb (leg) arthroscopy (minimally invasive joint repair). View counts and coverage
NPPES record updated Sep 1, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
33 Sewall StPortland, ME 04102-2603
Additional reported practice locations
4 Commons Ave Ste AWindham, ME 040625554
Phone: 2078282100
Fax: 2075537166 22 Station Ave Ste 201
Brunswick, ME 040112092
Phone: 2078282100
Fax: 2075537166 14 Thomas Point Rd
Brunswick, ME 040113911
Phone: 2078282100
Fax: 2075537166
Education & affiliations
- Medical / professional school
- Tufts University School Of Medicine
- Graduation year
- 1994
- CMS specialties
- Orthopedic Surgery
Practice groups
Reported hospital affiliations
- Northern Light Mercy Hospital Portland, ME
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Lower limb (leg) arthroscopy (minimally invasive joint repair) | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Orthopedic Surgery (CMS)
- Taxonomy code
- 207XX0004X
- Enumeration date
- Jul 19, 2005
- Record updated
- Sep 1, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207XX0004X · Primary
License reported: MD15148 ME
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
33 Sewall StPortland, ME 04102-2603
- Phone
- (207) 828-2100
- Fax
- (207) 828-2190
Mailing address
33 SEWALL STPORTLAND, ME 041022638
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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