Physician Profile
Thomas B. Cahill, MD
Unclaimed ProfileAbout Dr. Cahill
Thomas B. Cahill, MD practices cardiovascular disease (cardiology) in O Fallon, IL. Thomas is a 1978 graduate of Saint Louis University School of Medicine. Thomas is also listed as specializing in cardiovascular disease. Medicare claims data shows Thomas provided 1,548 services to 1,277 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
- (618) 233-6044
- Email not available
Practice Locations
THREE SAINT ELIZABETH BLVD STE 2800
O Fallon, IL 62269
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
1,548 services · 1,277 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
16 |
| Ct scan of blood vessels and grafts of heart with contrast | Imaging | 75574 |
11 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
687 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
168 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
34 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
32 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
32 |
| Routine electrocardiogram (ecg) using at least 12 leads with tracing | Treatment | 93005 |
32 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
31 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
394 |
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 cardiovascular diseases at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 26 related providers in 4 groups
Other cardiovascular diseases in O Fallon 3
Same specialty, same city.
Trained at Saint Louis University School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 1978 at Saint Louis University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Nuclear medicine studies of heart muscle at rest and with stress and spect 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Dr. Cahill specialize in?
Dr. Cahill is a cardiovascular disease (cardiology) in O Fallon, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where is Dr. Cahill located?
Dr. Cahill is listed at THREE SAINT ELIZABETH BLVD STE 2800, O Fallon, IL 62269. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Cahill's phone number?
The number on file is (618) 233-6044. 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 1023128113. 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 go to medical school?
Dr. Cahill attended Saint Louis University School of Medicine, graduating in 1978. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Cahill have?
Dr. Cahill has 48 years experience. Calculated from a graduation year of 1978, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Cahill do most often?
According to Medicare billing data, Dr. Cahill performs imaging including nuclear medicine studies of heart muscle at rest and with stress and spect and ct scan of blood vessels and grafts of heart with contrast; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, 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.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.