Quick answers
- Does Joseph M. Regan accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph M. Regan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Joseph M. Regan see?
- In 2024, CMS data shows 255 Original Medicare patients and 778 services for Joseph M. Regan. This counts Original Medicare only and measures volume, not quality.
- What is Joseph M. Regan's NPI number?
- 1518441963. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Joseph M. Regan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 255 |
|---|---|
| Services billed to Medicare | 778 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)412 services
- Hospital discharge day management, more than 30 minutes (99239)102 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)55 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)28 services
- Nursing facility discharge management, more than 30 minutes (99316)25 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Anxiety38%
- Depression36%
- Ischemic heart disease35%
Hospitals where Joseph M. Regan works
Medicare's Facility Affiliation Data lists Joseph M. Regan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200009
- Martha's Vineyard Hospital IncOak Bluffs, MA · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 221300
- Upper Connecticut Valley HospitalColebrook, NH · Critical Access Hospital · Emergency services: listed by Medicare · CCN 301300
- Weeks Medical CenterLancaster, NH · Critical Access Hospital · Emergency services: listed by Medicare · CCN 301303
- Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300018
Practice locations
Addresses where Joseph M. Regan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1 Hospital RdOak Bluffs, MA 02557
- 10 Goodall Dr, Suite 900East Waterboro, ME 04030 (207) 490‑7760
- 173 Middle StLancaster, NH 03584 (603) 788‑4911
- 181 Corliss LnColebrook, NH 03576 (603) 237‑4971
- 22 Bramhall StPortland, ME 04102
Group practices
Medicare enrollment lists Joseph M. Regan as a member of these groups (CMS data updated October 2, 2026).
- MaineHealth2,633 clinicians in the group
- Wentworth Douglass Physician Corporation429 clinicians in the group
- Martha's Vineyard Hospital Inc155 clinicians in the group
- Weeks Medical Center75 clinicians in the group
- Upper Connecticut Valley Hospital Association10 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Oak Bluffs
Clinicians with the same Medicare primary specialty in Oak Bluffs, MA — not a recommendation.
Other clinicians in MaineHealth
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518441963 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians