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Cardiac Electrophysiology

Alberto N. Diaz, MD

Works at hospitals in Cleveland, OH · Norwalk, OH · Lorain, OH … · Ohio

Summary

Dr. Alberto N. Diaz, MD is a cardiac electrophysiologist at 11100 Euclid Ave, Cleveland, OH 44106. Phone: (440) 329-7310. Accepts Medicare assignment. In 2024, Alberto N. Diaz had 1,033 Original Medicare patients and 5,230 services. NPI 1952416802. 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 Alberto N. Diaz, 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 Alberto N. Diaz accept Medicare assignment?
Yes. Medicare's clinician data says Alberto N. Diaz 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 Alberto N. Diaz see?
In 2024, CMS data shows 1,033 Original Medicare patients and 5,230 services for Alberto N. Diaz. This counts Original Medicare only and measures volume, not quality.
What is Alberto N. Diaz's NPI number?
1952416802. 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 Alberto N. Diaz, 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 patients1,033
Services billed to Medicare5,230
Different services or procedures74
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)765 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)746 services
  3. Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)507 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)443 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)380 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%
  • Atrial fibrillation67%
  • Ischemic heart disease65%
  • Arthritis54%
  • Heart failure50%

Hospitals where Alberto N. Diaz works

Medicare's Facility Affiliation Data lists Alberto N. Diaz 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.

  • Cleveland ClinicCleveland, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360180
  • Fisher-Titus HospitalNorwalk, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360065
  • Mercy Regional Medical CenterLorain, OH · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 360172
  • UH St John Medical CenterWestlake, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360123
  • University Hospitals - Elyria Medical CenterElyria, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 360145

Practice locations

Addresses where Alberto N. Diaz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alberto N. Diaz as a member of this group (CMS data updated October 2, 2026).

  • University Primary Care Practices Inc1,079 clinicians in the group

Specialties

Find other Cardiac Electrophysiology doctors in Ohio →

Other cardiac electrophysiologists in Cleveland

Clinicians with the same Medicare primary specialty in Cleveland, OH — not a recommendation.

All cardiac electrophysiologists in Cleveland →

Other clinicians in University Primary Care Practices Inc

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

Clinician information

CredentialMD
Graduation year1998 (28 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1952416802
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