Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Joel W. Keenan, MD

Works at hospitals in Manchester, NH · Portsmouth, NH · Dover, NH … · New Hampshire, Maine

Summary

Dr. Joel W. Keenan, MD is an internal medicine doctor at 1 Brickyard Ln, Cc, York, ME 03909. Phone: (207) 363-2505. Accepts Medicare assignment. In 2024, Joel W. Keenan had 154 Original Medicare patients and 1,392 services. NPI 1285746883. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Joel W. Keenan, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Joel W. Keenan accept Medicare assignment?
Yes. Medicare's clinician data says Joel W. Keenan 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 Joel W. Keenan see?
In 2024, CMS data shows 154 Original Medicare patients and 1,392 services for Joel W. Keenan. This counts Original Medicare only and measures volume, not quality.
What is Joel W. Keenan's NPI number?
1285746883. 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 Joel W. Keenan, 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 patients154
Services billed to Medicare1,392
Different services or procedures21
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)478 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)346 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)285 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)89 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)67 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 cholesterol75%
  • High blood pressure74%
  • Arthritis36%
  • Atrial fibrillation25%
  • Diabetes20%
  • Depression19%

Hospitals where Joel W. Keenan works

Medicare's Facility Affiliation Data lists Joel W. Keenan 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.

  • Elliot HospitalManchester, NH · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 300012
  • Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300029
  • Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300018
  • York HospitalYork, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200020

Practice locations

Addresses where Joel W. Keenan is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Maine →

Other internal medicine doctors in York

Clinicians with the same Medicare primary specialty in York, ME — not a recommendation.

All internal medicine doctors in York →

Clinician information

CredentialMD
Medical schoolUniversity Of Vermont College Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285746883
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians