Ranked list
The 10 largest medical groups in New Hampshire by Medicare Part B payments
The same ranking for New Hampshire medical groups.
Ranked listRefreshed monthly
The 10 largest medical groups in Maine by Medicare Part B payments
MaineHealth Primary Care - Family Medicine - Portland has the most Medicare Part B payments of any medical group in Maine, $60 million, followed by Northern Light Mercy Hospital in Portland ($39.8M) and New England Cancer Specialists in Westbrook ($39.7M). Together the 10 leaders account for $269.8 million in Medicare Part B payments in eight cities.
- MaineHealth Primary Care - Family Medicine - Portland$60M1,929physicians
- Northern Light Mercy Hospital$39.8M237physicians
- New England Cancer Specialists$39.7M39physicians
- MaineHealth Pediatric Cancer Care, Blood Disorders and IV Therapy (formerly Maine Children's Cancer Program)$25.5M771physicians
- Spectrum Healthcare Partners$21.4M370physicians
- MaineGeneral Health$20.3M611physicians
- Central Maine Medical Center$19.7M584physicians
- York Hospital$15.3M245physicians
- Northern Light Eastern Maine Medical Center$15.2M533physicians
- Houlton Regional Hospital$12.8M166physicians
The 10 highest of 383 Maine medical groups that report Medicare Part B payments. Ranks compare size, not quality of care.
Every medical group in MaineThe 10 top Maine medical groups hold 50% of all Medicare Part B payments
383 Maine medical groups report Medicare Part B payments, $538.5 million in all. The 10 on this list hold $269.8 million of it. The median medical group has $86,695 in Medicare Part B payments, so MaineHealth Primary Care - Family Medicine - Portland is about 692 times that size.
- of all Medicare Part B payments at Maine medical groups that report them
- 50%
- the size of the median Maine medical group, which has $86,695 in Medicare Part B payments
- 692×
- of the 383 Maine medical groups that report Medicare Part B payments
- 2.6%
How we ranked the top Maine medical groups
- Measure
- Medicare Part B payments to each group from CMS claims data.
- What counts as a group
- One Medicare PAC ID. A group that bills under several names counts once.
- Field
- 383 Maine medical groups in the Dmand AI database report Medicare Part B payments.
- Ties
- Medical groups with the same number share a rank.
- What a rank means
- Size only. A rank compares Medicare Part B payments; it says nothing about quality of care.
- Refresh
- Monthly. Updated Oct 28, 2026.
FAQ
Questions about the top Maine medical groups
Answers from the same data, updated monthly.
Which Maine medical group has the most Medicare Part B payments?
MaineHealth Primary Care - Family Medicine - Portland in Portland, with $60 million in Medicare Part B payments. Northern Light Mercy Hospital is second with $39.8M.
What are the top 10 Maine medical groups by Medicare Part B payments?
MaineHealth Primary Care - Family Medicine - Portland ($60M), Northern Light Mercy Hospital ($39.8M), New England Cancer Specialists ($39.7M), MaineHealth Pediatric Cancer Care, Blood Disorders and IV Therapy (formerly Maine Children's Cancer Program) ($25.5M), Spectrum Healthcare Partners ($21.4M), MaineGeneral Health ($20.3M), Central Maine Medical Center ($19.7M), York Hospital ($15.3M), Northern Light Eastern Maine Medical Center ($15.2M), Houlton Regional Hospital ($12.8M).
How many Medicare Part B payments does a typical Maine medical group have?
The median Maine medical group that reports Medicare Part B payments has $86,695 in Medicare Part B payments, out of 383 that report them.
How often is this list updated?
Every month, when the Dmand AI database refreshes. This version is from Oct 28, 2026.
More ranked lists
Every ranked listRanked list
The 10 largest medical groups in the US by Medicare Part B payments
The national ranking by Medicare Part B payments.
Dmand AI
Reach the buying committee at the 10 top Maine medical groups
Pick a medical group from this list and see its leaders by department, with direct dials and email, in one login.
- 30 days free
- Self-serve
- No credit card