Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Marta I Casas, MA

Q: What is the NPI number for Marta Casas?

The National Provider Identifier (NPI) for Marta Casas is 1669593984, a Type 1 (individual) record in the CMS NPPES registry.

Mental Health Counselor in Boston, MA · enumerated 2007.

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

National Provider Identifier

1669593984

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Registry record

Entity type Individual (Type 1)

Name Ms. Marta I Casas

Credential MA

Sex Female

Practice address 95 Berkeley St, Suite 600, Boston, MA, 02116

Phone (617) 350-6900

Fax (617) 350-6901

Enumeration date Apr 3, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Marta Casas?

The National Provider Identifier (NPI) for Marta Casas is 1669593984, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marta Casas practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.