Physician Profile
William J. Farrell, M.D. is a healthcare provider in Wallingford, CT specializing in cardiovascular disease. William trained at University of Iowa, Rj & L Carver College of Medicine, graduating in 1987. Medicare claims data shows William provided 2,322 services to 1,702 patients. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1062 BARNES RD STE 300
Wallingford, CT 06492
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
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Most searched procedures
Office and noninvasive testing
Advanced imaging
Consultations
Diagnostic testing
Diagnostics
Heart devices
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
2,322 services · 1,702 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
617 | More often than most peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
470 | More often than most peers in Cardiovascular Disease |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | Treatment | 93296 |
127 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
93 | |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
92 | As often as other peers in Cardiovascular Disease |
| Heart muscle strain imaging | Treatment | 93356 |
53 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
50 | |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | Treatment | 93295 |
38 | |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
35 | As often as other peers in Cardiovascular Disease |
| Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist | Treatment | 93460 |
16 | As often as other peers in Cardiovascular Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
William J. Farrell is a cardiologist in Wallingford, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
William J. Farrell is listed at 1062 Barnes Rd Ste 300, Wallingford, CT 06492. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (203) 265-9831. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
William J. Farrell's National Provider Identifier is 1417951203. 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
William J. Farrell attended University of Iowa, Rj & L Carver College of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
William J. Farrell has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, William J. Farrell provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and routine electrocardiogram using at least 12 leads with interpretation and report, 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 William J. Farrell. 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.