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Interventional Cardiology

Duane F. Follman, MD

Works at hospitals in Maywood, IL · Bolingbrook, IL · Glendale Heights, IL … · Illinois

Summary

Dr. Duane F. Follman, MD is an interventional cardiologist at 120 N Oak St, Hinsdale, IL 60521. Phone: (630) 499-4750. Accepts Medicare assignment. In 2024, Duane F. Follman had 2,534 Original Medicare patients and 5,031 services. NPI 1831145333. 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 Duane F. Follman, 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 Duane F. Follman accept Medicare assignment?
Yes. Medicare's clinician data says Duane F. Follman 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 Duane F. Follman see?
In 2024, CMS data shows 2,534 Original Medicare patients and 5,031 services for Duane F. Follman. This counts Original Medicare only and measures volume, not quality.
What is Duane F. Follman's NPI number?
1831145333. 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 Duane F. Follman, 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 patients2,534
Services billed to Medicare5,031
Different services or procedures25
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)2,085 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)934 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)662 services
  4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)371 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)249 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%
  • Arthritis60%
  • Ischemic heart disease50%
  • Chronic kidney disease39%
  • Atrial fibrillation36%

Hospitals where Duane F. Follman works

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

Group practices

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

  • Adventist Health Partners Inc43 clinicians in the group

Specialties

Find other Interventional Cardiology doctors in Illinois →

Other interventional cardiologists in Hinsdale

Clinicians with the same Medicare primary specialty in Hinsdale, IL — not a recommendation.

All interventional cardiologists in Hinsdale →

Other clinicians in Adventist Health Partners Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year1983 (43 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1831145333
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