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Internal Medicine

Ralph V. Tremaglio, MD

Works at hospitals in Waterbury, CT · Connecticut

Summary

Dr. Ralph V. Tremaglio, MD is an internal medicine doctor at 1389 W Main St, Waterbury, CT 06708. Phone: (203) 574-1274. May accept Medicare assignment. In 2024, Ralph V. Tremaglio had 190 Original Medicare patients and 722 services. NPI 1053360305. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1389 W Main St, Waterbury, CT 06708 · Directions (1 more location)
  • Phone: (203) 574‑1274
  • Medicare: May accept Medicare assignment
  • Hospitals: Saint Mary's Hospital, Uconn Health Waterbury Hospital
  • Group practice: Prospect Ct Medical Foundation Inc (+1 more)
  • Medical school: University Of Connecticut School Of Medicine · graduated 1979 (47 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ralph V. Tremaglio, 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 Ralph V. Tremaglio accept Medicare assignment?
Medicare's clinician data says Ralph V. Tremaglio may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Ralph V. Tremaglio see?
In 2024, CMS data shows 190 Original Medicare patients and 722 services for Ralph V. Tremaglio. This counts Original Medicare only and measures volume, not quality.
What is Ralph V. Tremaglio's NPI number?
1053360305. 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 Ralph V. Tremaglio, 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 patients190
Services billed to Medicare722
Different services or procedures33
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)194 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)131 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)87 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)77 services
  5. Influenza vaccine split virus, preservative free (90662)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 pressure74%
  • High cholesterol62%
  • Arthritis44%
  • Diabetes26%
  • Ischemic heart disease26%
  • Atrial fibrillation19%

Hospitals where Ralph V. Tremaglio works

Medicare's Facility Affiliation Data lists Ralph V. Tremaglio 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 Ralph V. Tremaglio is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ralph V. Tremaglio as a member of these groups (CMS data updated October 2, 2026).

  • Prospect Ct Medical Foundation Inc282 clinicians in the group
  • Uconn Health Community Network Medical Group, Inc.78 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Waterbury

Clinicians with the same Medicare primary specialty in Waterbury, CT — not a recommendation.

All internal medicine doctors in Waterbury →

Other clinicians in Prospect Ct Medical Foundation Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Connecticut School Of Medicine
Graduation year1979 (47 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1053360305
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