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Cardiac Surgery

Walter F. Denino, MD

Works at hospitals in Augusta, ME · Portland, ME · Brunswick, ME … · Maine, New Hampshire

Summary

Dr. Walter F. Denino, MD is a cardiac surgeon at 22 Bramhall St, Portland, ME 04102. Phone: (207) 773-8161. Accepts Medicare assignment. In 2024, Walter F. Denino had 71 Original Medicare patients and 178 services. NPI 1114238755. 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 Walter F. Denino, 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 Walter F. Denino accept Medicare assignment?
Yes. Medicare's clinician data says Walter F. Denino 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 Walter F. Denino see?
In 2024, CMS data shows 71 Original Medicare patients and 178 services for Walter F. Denino. This counts Original Medicare only and measures volume, not quality.
What is Walter F. Denino's NPI number?
1114238755. 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 Walter F. Denino, 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 patients71
Services billed to Medicare178
Different services or procedures40
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Coronary artery bypass using artery graft, 1 graft (33533)28 services
  2. Harvest of vein using an endoscope (33508)25 services
  3. Coronary artery bypass using vein or artery graft, 2 grafts (33518)14 services
  4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)11 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%
  • Ischemic heart disease75%
  • Heart failure61%
  • Atrial fibrillation49%
  • Arthritis45%

Hospitals where Walter F. Denino works

Medicare's Facility Affiliation Data lists Walter F. Denino 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 Walter F. Denino is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Walter F. Denino as a member of this group (CMS data updated October 2, 2026).

  • MaineHealth2,633 clinicians in the group

Specialties

Find other Cardiac Surgery doctors in Maine →

Other cardiac surgeons in Portland

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

All cardiac surgeons in Portland →

Other clinicians in MaineHealth

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

Clinician information

CredentialMD
Graduation year2010 (16 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114238755
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