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OA ASC LLC
NPI 1811718521
Clinic/Center - Ambulatory Surgical in Portland, ME

Active since October 24, 2024CLIA 20D0877265 · Waiver
33 SEWALL ST, PORTLAND, ME 04102(207) 828-2101(207) 553-7166 Get Directions Write a Review

NPPES record last updated: February 13, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 13, 2025, Dec 30, 2024, Dec 17, 2024 (3 updates tracked since 2024).

About Oa Asc Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

OA ASC LLC (NPI 1811718521) is a healthcare organization registered as an ambulatory surgical in Portland, Maine and active in the NPI registry since October 2024. The organization holds a CLIA Waiver certificate valid through September 28, 2027 and lists Kathryn H Hanna, Vice President, as its authorized official.

NPPES Registry Identity

NPI1811718521
Entity TypeOrganization
Primary Taxonomy261QA1903X
Legal Business NameOA ASC LLC
Location Address33 SEWALL STPortland, ME 04102-2603
Mailing Address33 Sewall StPortland, ME 04102-2603 · (207) 828-2101 · Fax (207) 553-7166
Phone(207) 828-2101
Fax(207) 553-7166
Organization SubpartYesParent: Growth Orthopedics Services Mso
Authorized OfficialKathryn H HannaVice President · (207) 828-2101
Enumeration DateOctober 24, 2024
Last NPPES UpdateFebruary 13, 20253 updates tracked since enumeration
NPPES CertifiedFebruary 13, 2025
✔ NPI 1811718521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Ambulatory SurgicalAmbulatory Health Care Facilities
Taxonomy Code261QA1903X
33 SEWALL ST, Portland, ME 04102
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CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 20D0877265

Oa ASC, LLC · Portland, ME
Active · expires Sep 28, 2027
CLIA Number20D0877265
Laboratory TypeAmbulatory Surgery Center
Certificate Effective DateSeptember 29, 2025
Certificate Expiration DateSeptember 28, 2027
Laboratory DirectorBryce T. Wolf
Laboratory Phone(207) 828-2100
Laboratory LocationOa ASC, LLC33 Sewall Street, Portland, ME 04102
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TERYN CLARK HANRAHAN ATC
Specialist/Technologist (Athletic Trainer)
33 SEWALL ST
PORTLAND, ME 04102
Cumberland County (207) 828-2100
DIANA H WAGMAN PA-C
Physician Assistant
33 SEWALL ST
PORTLAND, ME 04102
Cumberland County (207) 828-2100
PAUL SCOTT ABBEY MOT, OTR/L
Occupational Therapist
33 SEWALL ST
PORTLAND, ME 04102
Cumberland County (207) 828-2121
ZACHARY ABBOTT
Physical Medicine & Rehabilitation
33 SEWALL ST
PORTLAND, ME 04102
Cumberland County (207) 828-2100
MS. ALLISON L. BAYSOL PA-C
Physician Assistant (Surgical)
33 SEWALL ST
PORTLAND, ME 04102
Cumberland County (207) 828-2100
SHELLEY J PINE O.T.
Occupational Therapist
33 SEWALL ST
PORTLAND, ME 04102
Cumberland County (207) 828-2100
AARONE RAE DUROCHER ATC, OTC, OT-SC
Specialist/Technologist (Athletic Trainer)
33 SEWALL ST
PORTLAND, ME 04102
Cumberland County (207) 828-2100
DR. KATHRYN HEIDI HANNA M.D.
Orthopaedic Surgery (Hand Surgery)
33 SEWALL ST
PORTLAND, ME 04102
Cumberland County (207) 828-2100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Oa ASC LLC's NPI number?

The NPI number for Oa ASC LLC is 1811718521. It was assigned to this organization in the NPPES registry on October 24, 2024.

Where is Oa ASC LLC located?

Oa ASC LLC is located at 33 Sewall St, Portland, ME 04102. The listed phone number is (207) 828-2101.

What is Oa ASC LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ambulatory Surgical, with taxonomy code 261QA1903X.

Does Oa ASC LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 20D0877265) is associated with this NPI, valid through September 28, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Oa ASC LLC was last updated on February 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.