Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Winchester Anesthesia Associates 2 Inc

Q: What is the NPI number for Winchester Anesthesia Associates 2 Inc?

The NPI for Winchester Anesthesia Associates 2 Inc is 1427599588, a Type 2 (organization) record in the CMS NPPES registry.

Anesthesiology Physician in Winchester, MA · enumerated 2017 · authorized official Lewis Rieley, Treasurer.

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

National Provider Identifier

1427599588

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Registry record

Entity type Organization (Type 2)

Legal business name Winchester Anesthesia Associates 2 Inc

Practice address 41 Highland Ave, Winchester, MA, 01890

Phone (781) 756-7243

Enumeration date Mar 9, 2017

Last updated in NPPES Jun 1, 2021

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Primary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Lewis Rieley

Title Treasurer

Phone (781) 756-2190

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 Winchester Anesthesia Associates 2 Inc?

The NPI for Winchester Anesthesia Associates 2 Inc is 1427599588, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Winchester Anesthesia Associates 2 Inc?

NPPES lists Lewis Rieley (Treasurer) as the authorized official for this organization.

Providers at this address

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Jeffrey Brown Plastic Surgery within the Head & Neck (Otolaryngology) Physician · Winchester, MA NPI 1568461333 Robin Kirby Cytopathology Physician · Winchester, MA NPI 1982693594 Aldo Gonzalez-Serva Dermatopathology (Pathology) Physician · Winchester, MA NPI 1255320925 May Azar Cytopathology Physician · Winchester, MA NPI 1114916731 Winchester Laboratory Associates, Inc. Anatomic Pathology & Clinical Pathology Physician · Winchester, MA NPI 1013906650 Mark Zuckerman Cytopathology Physician · Winchester, MA NPI 1376532754 Maureen Hennessy Certified Registered Nurse Anesthetist · Winchester, MA NPI 1538150461 Mohamed Mahmoud Internal Medicine Physician · Winchester, MA NPI 1033191366

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-01.