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 1154535813, a Type 2 (organization) record in the CMS NPPES registry.

Internal Medicine Physician in Somerville, MA · enumerated 2007 · authorized official Steve Strongwater, Chief Executive Officer.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1154535813

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Registry record

Entity type Organization (Type 2)

Legal business name Atrius Health, Inc.

Other name <Unavail>

Practice address 40 Holland St, Somerville, MA, 02144

Phone (617) 629-6000

Fax (617) 629-6070

Enumeration date May 10, 2007

Last updated in NPPES Jun 20, 2022

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Secondary

122300000X Dentist Dental Providers Secondary

163W00000X Registered Nurse Nursing Service Providers Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Secondary

207RA0201X Allergy & Immunology (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians Secondary

2085B0100X Body Imaging Physician Allopathic & Osteopathic Physicians Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians Secondary

208800000X Urology Physician Allopathic & Osteopathic Physicians Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

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

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Steve Strongwater

Title Chief Executive Officer

Phone (617) 559-8042

Other identifiers

Identifier	Type	State	Issuer
0014265	Other	MA	NEIGHBORHOOD HEALTH PLAN
42740	Other	MA	BEACON HEALTH PLAN
M16869	Other	MA	BLUE CROSS BLUE SHIELD

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 (Chief Executive Officer) as the authorized official for this organization.

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

The NPI for Atrius Health, Inc. is 1154535813, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-06-20.