Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Atrius Health, Inc.

Q: What is the NPI number for Atrius Health, Inc.?

The NPI for Atrius Health, Inc. is 1043366537, a Type 2 (organization) record in the CMS NPPES registry.

Internal Medicine Physician in Watertown, MA · enumerated 2007 · authorized official Steve Strongwater, President.

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

National Provider Identifier

1043366537

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Registry record

Entity type Organization (Type 2)

Legal business name Atrius Health, Inc.

Other name <Unavail>

Practice address 485 Arsenal St, Watertown, MA, 02472

Phone (617) 972-5100

Fax (617) 972-5439

Enumeration date Jan 26, 2007

Last updated in NPPES Jun 20, 2022

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers Secondary

133N00000X Nutritionist Dietary & Nutritional Service Providers Secondary

152W00000X Optometrist Eye and Vision Services Providers Secondary

183500000X Pharmacist Pharmacy Service Providers Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Secondary

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians Secondary

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers Secondary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Steve Strongwater

Title President

Phone (617) 559-8042

Other identifiers

Identifier	Type	State	Issuer
0014266	Other	MA	NEIGHBORHOOD HEALTH PLAN
M16857	Other	MA	BLUE CROSS
42741	Other	MA	BEACON HEALTH PLAN

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

Who is the authorized official for Atrius Health, Inc.?

NPPES lists Steve Strongwater (President) as the authorized official for this organization.

What is the NPI number for Atrius Health, Inc.?

The NPI for Atrius Health, Inc. is 1043366537, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-20.