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

Dr. Michael Liebowitz, MD

Psychiatry Physician in Dartmouth, MA · enumerated 2006 · practices at Northeast Behavioral Health, LLC.

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

National Provider Identifier

1821150129

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Liebowitz

Credential MD

Sex Male

Practice address Dartmouth, MA, 02747

Phone (508) 207-9800

Enumeration date Dec 14, 2006

Last updated in NPPES Apr 27, 2021

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

Taxonomy & licenses

283Q00000X Psychiatric Hospital Hospitals Secondary

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities · License 158438 (MA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 158438 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Michael Liebowitz practice?

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

What is the NPI number for Michael Liebowitz?

The National Provider Identifier (NPI) for Michael Liebowitz is 1821150129, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-27.