Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Bart Louis Main, MD

Individual provider Child & Adolescent Psychiatry Physician · NPI 1689770604

Bart Louis Main, MD practises Psychiatry in Hyannis, Massachusetts. Graduated from Indiana University School of Medicine in 1977, 49 years ago. Practices with Northeast Health Services LLC, a 469-clinician group and accepts Medicare assignment. Licensed in Massachusetts and Minnesota.

Years since qualifying
49
Trained at
Indiana University School of Medicine
Licensed in
MA, MN
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

460 W Main St
Hyannis, MA 02601-3653
Phone: (508) 862-5504
Fax: (508) 790-3304
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence 238225 (MA)
Child & Adolescent Psychiatry Physician Taxonomy 2084P0804X · Licence 24451 (MN)

Record details

NPI number1689770604
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 16, 2006
Last updated in NPPESMarch 23, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1977 (49 years in practice)
Group practice Northeast Health Services Llc — 469 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,179 47 payments · a meal or drink at a meeting or visit, not a fee
Education $175 2 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Northeast Health Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 469 clinicians in the practice; 12 are shown here.

Other providers in Hyannis