Physician Profile
Based in Greensboro, NC, John Michael Cahill, M.D. is listed in the NPI registry under cardiovascular disease (cardiology). John is also listed as specializing in cardiovascular disease. Medicare claims data shows John provided 821 services to 598 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
3801 W MARKET ST
Greensboro, NC 27407
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.
Most searched conditions
Most searched procedures
821 services · 598 patients · 19 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
32 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
19 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
117 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
39 |
| Heart rhythm recording of continous external ekg over 8-15 days | Treatment | 93246 |
33 |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | Treatment | 93248 |
27 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | Treatment | 93015 |
15 |
| Technetium tc-99m tetrofosmin, diagnostic, per study dose | A9502 |
36 | |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
258 |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
33 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Cahill is a cardiovascular disease (cardiology) in Greensboro, NC. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Dr. Cahill is listed at 3801 W MARKET ST, Greensboro, NC 27407. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (336) 883-0029. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Cahill's National Provider Identifier is 1063533875. 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
Dr. Cahill attended Other, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
Dr. Cahill has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Cahill performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report 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
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.