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

Ms. Iris Werbalowsky Barten, M. ED; LMHC, LMFT

Mental Health Counselor in Bolton, MA · enumerated 2009.

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

National Provider Identifier

1104063759

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Registry record

Entity type Individual (Type 1)
Name Ms. Iris Werbalowsky Barten
Credential M. ED; LMHC, LMFT
Sex Female
Practice address Bolton, MA, 01740
Phone (978) 779-2744
Enumeration date Jan 17, 2009
Last updated in NPPES Jan 17, 2009

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 899 (MA) Primary
104100000X Social Worker Behavioral Health & Social Service Providers · License 208205 2 (MA) Secondary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 532 (MA) Secondary
LMFT · Licensed Marriage and Family Therapist: A licensed therapist specializing in relational and family psychotherapy. About the LMFT credential

Other identifiers

Identifier Type State Issuer
70010000LM0622 Other MA BCBSMA

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

Where does Iris Barten practice?
The practice location on file with NPPES is in Bolton, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Iris Barten?
The National Provider Identifier (NPI) for Iris Barten is 1104063759, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-17.