Physician Profile
John Michael Cahill, MD
Unclaimed ProfileAbout Dr. Cahill
Based in Elmhurst, IL, John Michael Cahill, MD is listed in the NPI registry under interventional cardiology. John graduated from Loyola University of Chicago, Stritch School of Medicine in 1981. John is also listed as specializing in cardiovascular disease. Medicare claims data shows John provided 5,471 services to 3,550 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (331) 231-6200
- Email not available
Practice Locations
133 E BRUSH HILL RD STE 202
Elmhurst, IL 60126
Procedures Most Often Billed to Medicare
5,471 services · 3,550 patients · 24 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
257 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
200 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) | Treatment | 93017 |
199 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
189 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
152 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
52 |
| Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report | Treatment | 93351 |
40 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
27 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
27 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
22 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other interventional cardiology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 29 related providers in 4 groups
Other interventional cardiology specialists in Elmhurst 5
Same specialty, same city.
Trained at Loyola University of Chicago, Stritch School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1981 at Loyola University of Chicago, Stritch School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Cahill?
Dr. Cahill is an interventional cardiology in Elmhurst, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERVENTIONAL CARDIOLOGY”.
NPI registry
What is Dr. Cahill's address?
Dr. Cahill is listed at 133 E BRUSH HILL RD STE 202, Elmhurst, IL 60126. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Cahill?
The number on file is (331) 231-6200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Cahill?
Dr. Cahill's National Provider Identifier is 1124071337. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Cahill train?
Dr. Cahill attended Loyola University of Chicago, Stritch School of Medicine, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Cahill have?
Dr. Cahill has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Cahill perform?
According to Medicare billing data, Dr. Cahill provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and exercise or drug-induced heart stress test with electrocardiogram with supervision by physician, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Cahill's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Cahill. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.