Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mariah Swiech Henderson, PA

Physician Assistant in Medford, MA · enumerated 2016 · practices at Tufts University Health Service.

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

National Provider Identifier

1104376904

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Registry record

Entity type Individual (Type 1)

Name Mariah Swiech Henderson

Credential PA

Sex Female

Practice address Medford, MA, 02155

Phone (617) 627-7947

Enumeration date Oct 5, 2016

Last updated in NPPES Mar 23, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA5908 (MA) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

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

How do I verify Mariah Henderson's NPI record?

Cross-check NPI 1104376904 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1104376904 active?

Yes, as of the latest NPPES snapshot, NPI 1104376904 is active (record last updated 2020-03-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-23.