Oa Asc LLC
About this NPIWhat this record shows.
NPI 1811718521 is registered to Oa Asc LLC, a healthcare organisation classified as "Ambulatory Surgical Clinic/Center" and located at 33 Sewall St in Portland, Maine. The organisation's authorised official is Kathryn Hanna. The organisation has been enumerated in the NPI registry since 2024.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Part B Supplier
- O20250328002165Ambulatory Surgical CenterME
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Oa Asc LLC accepts. To confirm in-network status with your specific health plan, contact Oa Asc LLC directly at (207) 828-2101.
Frequently asked
Yes. NPI 1811718521 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Ambulatory Surgical Clinic/Center is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (207) 828-2101.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Oa Asc LLC is a Type-2 organisational NPI.