Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sarah Sinclair, DO

Hematology & Oncology Physician in Brewer, ME · enumerated 2006 · practices at Northeast Radiation Oncology PA.

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

National Provider Identifier

1457399552

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Registry record

Entity type Individual (Type 1)

Name Sarah Sinclair

Credential DO

Sex Female

Practice address 33 Whiting Hill Rd, Suite 21, Brewer, ME, 04412

Phone (207) 973-7478

Fax (207) 973-7807

Enumeration date Jun 2, 2006

Last updated in NPPES Aug 16, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 1939 (ME) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 1939 (ME) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
432286099	Medicaid	ME	-
30224373	Medicaid	NH	-

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 Sarah Sinclair?

The National Provider Identifier (NPI) for Sarah Sinclair is 1457399552, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sarah Sinclair practice?

The practice location on file with NPPES is in Brewer, ME. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-16.