Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alliance Oncology LLC

Q: What is the NPI number for Alliance Oncology LLC?

The NPI for Alliance Oncology LLC is 1386807576, a Type 2 (organization) record in the CMS NPPES registry.

Radiation Oncology Clinic/Center in Newburyport, MA · enumerated 2008 · authorized official Michael Weeks, Vp Finance.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1386807576

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Alliance Oncology LLC

Other name <Unavail>

Practice address 1 Wallace Bashaw Way, Newburyport, MA, 01950

Phone (800) 229-7226

Enumeration date Jul 8, 2008

Last updated in NPPES Oct 4, 2012

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians Secondary

261QX0203X Radiation Oncology Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Michael Weeks

Title Vp Finance

Phone (256) 383-3325

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Alliance Oncology LLC?

The NPI for Alliance Oncology LLC is 1386807576, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Alliance Oncology LLC?

NPPES lists Michael Weeks (Vp Finance) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-04.