Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Bart Louis Main, MD

Child & Adolescent Psychiatry Physician in Hyannis, MA · enumerated 2006.

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

National Provider Identifier

1689770604

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Registry record

Entity type Individual (Type 1)

Name Bart Louis Main

Credential MD

Sex Male

Practice address 460 W Main St, Hyannis, MA, 02601

Phone (508) 862-5504

Fax (508) 790-3304

Enumeration date Sep 16, 2006

Last updated in NPPES Mar 23, 2017

Taxonomy & licenses

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 24451 (MN) Secondary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 238225 (MA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
366305100	Medicaid	MN	-

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

How do I verify Bart Main's NPI record?

Cross-check NPI 1689770604 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1689770604 active?

Yes, as of the latest NPPES snapshot, NPI 1689770604 is active (record last updated 2017-03-23).

Other providers at this practice address

Browse all →

Jay Stearns Psychiatry Physician · Hyannis, MA NPI 1073576096 Diane Reimer Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist · Hyannis, MA NPI 1588614689 Bonnie Bullard Mental Health Counselor · Hyannis, MA NPI 1114973971 Cape Cod Healthcare Inc. Mental Health Clinic/Center (Including Community Mental Health Center) · Hyannis, MA NPI 1245286152 Dora Alfano Social Worker · Hyannis, MA NPI 1376590240 Dianna Otieno Mental Health Counselor · Hyannis, MA NPI 1306893946 Jing Patrinostro Psychiatry Physician · Hyannis, MA NPI 1952349201 Marie Doubleday Mental Health Counselor · Hyannis, MA NPI 1396784039

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-23.