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

Alexandra Porter-Marques

Mental Health Counselor in Walpole, MA · enumerated 2008.

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

National Provider Identifier

1649447954

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Registry record

Entity type Individual (Type 1)

Name Alexandra Porter-Marques

Sex Female

Practice address Walpole, MA, 02081

Phone (508) 668-3223

Enumeration date May 15, 2008

Last updated in NPPES May 15, 2008

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 6279 (MA) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 6279 (MA) Primary

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.

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Frequently asked questions

What is the NPI number for Alexandra Porter-Marques?

The National Provider Identifier (NPI) for Alexandra Porter-Marques is 1649447954, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexandra Porter-Marques practice?

The practice location on file with NPPES is in Walpole, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Virginia Oleksyk Clinical Social Worker · Walpole, MA NPI 1295866010 Joanne Rossi Addiction (Substance Use Disorder) Counselor · Walpole, MA NPI 1538382445 Patti Doten Addiction (Substance Use Disorder) Counselor · Walpole, MA NPI 1992928899 Allison Smith Addiction (Substance Use Disorder) Counselor · Walpole, MA NPI 1346469194 Jean Thompson Mental Health Counselor · Walpole, MA NPI 1568681419 Jane Brennan Mental Health Counselor · Walpole, MA NPI 1508053901 Hansmukh Khalsa Mental Health Counselor · Walpole, MA NPI 1740680693 Margaret Bullers Clinical Social Worker · Walpole, MA NPI 1699272740

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-15.