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Gastroenterology

Aristotle Damianos, MD

Works at hospitals in Exeter, NH · Rochester, NH · Portsmouth, NH … · New Hampshire, Maine

Summary

Dr. Aristotle Damianos, MD is a gastroenterologist at 21 Clark Way, Somersworth, NH 03878. Phone: (603) 692-2228. Accepts Medicare assignment. In 2024, Aristotle Damianos had 1,066 Original Medicare patients and 7,484 services. NPI 1811994171. 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 Aristotle Damianos, 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 Aristotle Damianos accept Medicare assignment?
Yes. Medicare's clinician data says Aristotle Damianos 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 Aristotle Damianos see?
In 2024, CMS data shows 1,066 Original Medicare patients and 7,484 services for Aristotle Damianos. This counts Original Medicare only and measures volume, not quality.
What is Aristotle Damianos's NPI number?
1811994171. 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 Aristotle Damianos, 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 patients1,066
Services billed to Medicare7,484
Different services or procedures62
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, vedolizumab, intravenous, 1 mg (J3380)4,200 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)268 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)215 services
  4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)196 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)183 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 pressure73%
  • Arthritis48%
  • Anxiety32%
  • Ischemic heart disease28%
  • Diabetes25%

Hospitals where Aristotle Damianos works

Medicare's Facility Affiliation Data lists Aristotle Damianos 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.

  • Exeter Hospital IncExeter, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300023
  • Frisbie Memorial HospitalRochester, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300014
  • 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 Aristotle Damianos is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Aristotle Damianos as a member of this group (CMS data updated October 2, 2026).

  • Atlantic Digestive Specialists PLLC17 clinicians in the group

Specialties

Find other Gastroenterology doctors in New Hampshire →

Other gastroenterologists in Somersworth

Clinicians with the same Medicare primary specialty in Somersworth, NH — not a recommendation.

All gastroenterologists in Somersworth →

Other clinicians in Atlantic Digestive Specialists PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolGeisel School Of Medicine At Dartmouth
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1811994171
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