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Gastroenterology

Aloysius K. Rho, MD

Works at hospitals in Portland, ME · Maine

Summary

Dr. Aloysius K. Rho, MD is a gastroenterologist at 43 Whiting Hill Rd, Suite 250, Brewer, ME 04412. May accept Medicare assignment. In 2024, Aloysius K. Rho had 198 Original Medicare patients and 379 services. NPI 1710987334. 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.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 43 Whiting Hill Rd, Suite 250, Brewer, ME 04412 · Directions
  • Medicare: May accept Medicare assignment
  • Hospital: Northern Light Mercy Hospital
  • Medical school: graduated 1994 (32 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Aloysius K. Rho, 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 Aloysius K. Rho accept Medicare assignment?
Medicare's clinician data says Aloysius K. Rho may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Aloysius K. Rho see?
In 2024, CMS data shows 198 Original Medicare patients and 379 services for Aloysius K. Rho. This counts Original Medicare only and measures volume, not quality.
What is Aloysius K. Rho's NPI number?
1710987334. 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 Aloysius K. Rho, 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 patients198
Services billed to Medicare379
Different services or procedures34
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)68 services
  2. Biopsy of large bowel using a flexible endoscope (45380)59 services
  3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)32 services
  4. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)31 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)30 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 pressure61%
  • High cholesterol57%
  • Arthritis43%
  • Anxiety39%
  • Depression27%
  • Diabetes22%

Hospitals where Aloysius K. Rho works

Medicare's Facility Affiliation Data lists Aloysius K. Rho 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.

Practice locations

Addresses where Aloysius K. Rho is enrolled with Medicare (CMS data updated October 2, 2026).

  • 43 Whiting Hill Rd, Suite 250Brewer, ME 04412

Specialties

Find other Gastroenterology doctors in Maine →

Other gastroenterologists in Maine

Clinicians with the same Medicare primary specialty in Maine — not a recommendation.

All gastroenterologists in Maine →

Clinician information

CredentialMD
Graduation year1994 (32 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1710987334
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