Marc A Asselmeier, M.D.

Orthopaedic Surgery

(630) 469-9200Glen Ellyn, IL
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Marc a Asselmeier, M.D. practices as part of a group orthopedic surgeon practice in Glen Ellyn, IL. He graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1986 and has 40+ years of clinical experience. Among his Medicare patients, common conditions include high cholesterol, arthritis, and hypertension (per CMS data).

1 of 47 Orthopaedic Surgery providers in ILSee all Orthopaedic Surgery in Glen Ellyn40+ years experienceNPI since 2005

Older · 1007dNPPES updated 2023-08-03 · verify on CMS

Contact & Location

Practice Location

430 Pennsylvania Ave, Glen Ellyn, IL 60137-4464

CMS Clinical Data

How Does This Doctor Compare?

Opioid Rx

↓ Lower = better

32.67%

Illinois avg: 4.5 · US avg: 5.1

Lower than most doctors nationally(+27.6 pts)

32.67% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Medicare Patients

653

Unique beneficiaries

High volume

Prescription Recipients

194

Patients prescribed

Prescriptions Written

404

Total claims

Total Medicare drug cost: $6k

Percentile rankings compared against 2,844 reporting peers in Illinois.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages High Cholesterol, Arthritis, and Hypertension.

High Cholesterol
Higher than avg (+4%)74%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+4%) — a focus area for this doctor

Arthritis
Higher than avg (+25%)74%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+25%) — a focus area for this doctor

Hypertension
70%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%
Ischemic Heart Disease
Lower than avg (-9%)23%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

US avg: 31.7%

↓ Fewer patients than average (-9%) — less common here

Diabetes
Lower than avg (-12%)22%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-12%) — less common here

Mood Disorders
20%

Conditions affecting emotional state, including depression and bipolar disorder

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Industry Payment Transparency

$1.4k received from industry

21 transactions reported in 2024 ·Moderate tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Marc a Asselmeier's NPI.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 1986

    University of Illinois College of Medicine

  2. Board certified · Aug 2, 2023

    CMS-verified certification date

  3. 40 years in practice

    Senior practitioner

Orthopaedic SurgeryAllopathic & Osteopathic Physicians

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Taxonomy: 207X00000X

Education & Training

University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (Class of 1986)

Practice Footprint

Mailing address

Po Box 713260, Chicago, IL 60677-1260

Differs from practice location

Virtual Orthopaedic Surgery Care With Marc a Asselmeier

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Marc a Asselmeier for cholesterol management, arthritis follow-ups, blood pressure monitoring — no travel to Glen Ellyn required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Marc a Asselmeier

NPI records show Dr. Asselmeier as active with telehealth listed in Glen Ellyn, IL. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (630) 469-9200.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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