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

Barbara Gold Marks, LICSW

Mental Health Counselor in Brookline, MA · enumerated 2006.

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

National Provider Identifier

1801950357

Verified

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Registry record

Entity type Individual (Type 1)

Name Barbara Gold Marks

Credential LICSW

Sex Female

Practice address Brookline, MA, 02446

Phone (617) 277-2449

Fax (617) 731-9114

Enumeration date Dec 20, 2006

Last updated in NPPES Jan 11, 2012

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 1021149 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
365476	Other	MA	MAGELLAN BEHAVIORAL HEALT
P-06-318	Other	MA	BLUE CROSS BLUE SHIELD
110082452A	Medicaid	MA	-
009855	Other	MA	HARVARD PILGRIM
161793	Other	MA	TRICARE
236287979	Other	MA	UNITED BEHAVIORAL HEALTH

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 does Barbara Marks practice?

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

What is the NPI number for Barbara Marks?

The National Provider Identifier (NPI) for Barbara Marks is 1801950357, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-11.