Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Atrius Health, Inc.

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

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

National Provider Identifier

1427271584

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Registry record

Entity type Organization (Type 2)

Legal business name Atrius Health, Inc.

Other name <Unavail>

Practice address 1611 Cambridge St, Cambridge, MA, 02138

Phone (617) 661-5500

Fax (617) 661-5327

Enumeration date Apr 10, 2007

Last updated in NPPES Jun 20, 2022

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers Secondary

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

111N00000X Chiropractor Chiropractic Providers Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians Secondary

207V00000X Obstetrics & Gynecology 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

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing 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
0014257	Other	MA	NEIGHBORHOOD HEALTH PLAN
42735	Other	MA	BEACON HEALTH PLAN
M16860	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

Where is Atrius Health, Inc. located?

The practice location on file with NPPES is in Cambridge, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-06-20. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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