Dr. Dhananjay Chatterjee, M.D.
What this data tells you about Dr. Chatterjee
Dr. Dhananjay Chatterjee is an interventional cardiology specialist in Calabasas, CA, with 10 years of NPI registration. Based on federal Medicare data, Dr. Chatterjee performed 840 Medicare services across 728 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chatterjee received a total of $22,655 from 16 pharmaceutical and/or device companies across 150 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in interventional cardiology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Chatterjee is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
159 | $154 | $960 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
118 | $12 | $111 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
114 | $175 | $1,383 |
| New patient office visit, complex (60-74 min) | 62 | $183 | $1,360 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
60 | $98 | $680 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
56 | $110 | $858 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
52 | $10 | $283 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
51 | $12 | $69 |
| Cardiac catheterization | 33 | $213 | $1,610 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
26 | $143 | $1,320 |
| Continuous external EKG monitoring, 8-15 days This procedure involves recording heart rhythm continuously using an external EKG device over a period of 8 to 15 days. |
22 | $11 | $78 |
| Ultrasound of heart blood vessel or graft An ultrasound exam to evaluate blood flow in a heart blood vessel or graft, including a radiologist's review of the initial vessel. |
21 | $76 | $504 |
| Stress echocardiogram with ECG monitoring An ultrasound of the heart performed while monitoring heart rhythm during rest, exercise, or medication-induced stress, followed by a review and report of the findings. |
21 | $210 | $1,409 |
| External EKG monitoring, 8-15 days Continuous external electrocardiogram recording and review over a period of 8 to 15 days to monitor heart rhythm. |
18 | $20 | $145 |
| Additional heart vessel ultrasound evaluation An additional ultrasound assessment of a specific heart blood vessel or graft, including radiologist review. |
14 | $60 | $344 |
| Ultrasound of heart An imaging test that uses sound waves to create pictures of the heart's structure and function. |
13 | $36 | $215 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2021-2024) ›
Associated products mentioned in payments ›
The majority of payments (77%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in interventional cardiology and does not inherently indicate bias, but patients may wish to be aware.
Geographic Context
4.9 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Chatterjee is a clinical cardiology specialist, with moderate Medicare volume, with speaking/promotional industry engagement.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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