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Cardiovascular Disease (Cardiology)

Salim M. Shammo, MD

Works at hospitals in Fort Atkinson, WI · Oconomowoc, WI · Madison, WI … · Wisconsin

Summary

Dr. Salim M. Shammo, MD is a cardiologist at 125 Hospital Dr, Watertown, WI 53098. Phone: (920) 262-4825. Accepts Medicare assignment. In 2024, Salim M. Shammo had 877 Original Medicare patients and 3,967 services. NPI 1295791937. 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 Salim M. Shammo, 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 Salim M. Shammo accept Medicare assignment?
Yes. Medicare's clinician data says Salim M. Shammo 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 Salim M. Shammo see?
In 2024, CMS data shows 877 Original Medicare patients and 3,967 services for Salim M. Shammo. This counts Original Medicare only and measures volume, not quality.
What is Salim M. Shammo's NPI number?
1295791937. 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 Salim M. Shammo, 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 patients877
Services billed to Medicare3,967
Different services or procedures47
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)713 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)491 services
  3. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)175 services
  4. Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)152 services
  5. Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)120 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 disease58%
  • Arthritis45%
  • Diabetes35%
  • Heart failure35%

Hospitals where Salim M. Shammo works

Medicare's Facility Affiliation Data lists Salim M. Shammo 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 Salim M. Shammo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Salim M. Shammo as a member of these groups (CMS data updated October 2, 2026).

  • Froedtert Andthe Medical College of Wisconsin Community Physicians Inc1,285 clinicians in the group
  • Watertown Physician Practices LLC67 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Wisconsin →

Other cardiologists in Wisconsin

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

All cardiologists in Wisconsin →

Other clinicians in Froedtert Andthe Medical College of Wisconsin Community Physicians Inc

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

Clinician information

CredentialMD
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1295791937
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