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Cardiovascular Disease (Cardiology)

Marvin S. Siegel, DO

Works at hospitals in Phoenix, AZ · Arizona

Summary

Dr. Marvin S. Siegel, DO is a cardiologist at 10510 N 92nd St, Scottsdale, AZ 85258. Phone: (602) 861-1168. Accepts Medicare assignment. In 2024, Marvin S. Siegel had 745 Original Medicare patients and 2,678 services. NPI 1588665608. 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: Cardiologist (Medicare lists Cardiovascular Disease (Cardiology))
  • Address: 10510 N 92nd St, Scottsdale, AZ 85258 · Directions (8 more locations)
  • Phone: (602) 861‑1168
  • Medicare: Accepts Medicare assignment
  • Hospital: HonorHealth Deer Valley Medical Center
  • Group practice: HonorHealth Ambulatory
  • Medical school: At Still University Of Health Sciences, College Of Osteo Med, Kirksville · graduated 1975 (51 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Marvin S. Siegel, 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 Marvin S. Siegel accept Medicare assignment?
Yes. Medicare's clinician data says Marvin S. Siegel 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 Marvin S. Siegel see?
In 2024, CMS data shows 745 Original Medicare patients and 2,678 services for Marvin S. Siegel. This counts Original Medicare only and measures volume, not quality.
What is Marvin S. Siegel's NPI number?
1588665608. 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 Marvin S. Siegel, 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 patients745
Services billed to Medicare2,678
Different services or procedures44
Participating Medicare providerYes
Average age of these patients76

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)874 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)356 services
  3. Injection, regadenoson, 0.1 mg (J2785)268 services
  4. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)193 services
  5. Heart muscle strain imaging (93356)149 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%
  • Arthritis49%
  • Ischemic heart disease40%
  • Atrial fibrillation34%
  • Chronic kidney disease32%

Hospitals where Marvin S. Siegel works

Medicare's Facility Affiliation Data lists Marvin S. Siegel 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 Marvin S. Siegel is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

Group practices

Medicare enrollment lists Marvin S. Siegel as a member of this group (CMS data updated October 2, 2026).

  • HonorHealth Ambulatory630 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Arizona →

Other cardiologists in Scottsdale

Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.

All cardiologists in Scottsdale →

Other clinicians in HonorHealth Ambulatory

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

Clinician information

CredentialDO
Medical schoolAt Still University Of Health Sciences, College Of Osteo Med, Kirksville
Graduation year1975 (51 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588665608
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