Medicare Enrolled
Dr. Onkarjit Marwah, M.D.
Cardiovascular Disease · Glendale, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Marwah from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Marwah
Dr. Onkarjit Marwah is a cardiovascular disease specialist in Glendale, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Marwah performed 7,105 Medicare services across 4,405 unique beneficiaries.
Between the years covered by Open Payments, Dr. Marwah received a total of $27,131 from 38 pharmaceutical and/or device companies across 358 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Marwah 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.
✓ 20 years in practice
▲ Top 11% volume in CA
$27,131 industry payments
Medicare Practice Summary
Medicare Utilization ↗7,105
Medicare services
Top 11% in CA for cardiovascular disease
4,405
Unique beneficiaries
$61
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~355 Medicare services per year of practice
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 |
|---|---|---|---|
| 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. |
1,428 | $12 | $75 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,339 | $73 | $120 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
1,027 | $66 | $125 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
466 | $173 | $550 |
| 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. |
189 | $145 | $325 |
| Remote vital sign monitoring management, each additional 20 minutes This code covers the time spent by a provider managing patient data from remote vital sign monitoring devices. It applies to each additional 20-minute increment beyond the initial monthly service period. |
183 | $34 | $85 |
| Remote patient monitoring management, 20 min/month Management based on results from remote vital sign monitoring for the first 20 minutes per calendar month. |
159 | $42 | $110 |
| Remote patient monitoring device, 30 days Initial setup of devices for remote monitoring of body functions with daily data transmission or alerts. This service covers the first 30 days of the monitoring period. |
128 | $46 | $120 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
117 | $109 | $275 |
| 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. |
104 | $104 | $180 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
103 | $8 | $12 |
| 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. |
70 | $10 | $75 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
68 | $46 | $206 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram under physician supervision and review. |
64 | $56 | $231 |
| Remote physiologic monitoring setup and education Initial setup of remote monitoring equipment and patient education on its use. |
63 | $17 | $40 |
| Cardiac catheterization | 58 | $215 | $675 |
| Continuous external EKG monitoring, 48 hours to 7 days This procedure involves recording the heart's electrical activity continuously using an external device for a period exceeding 48 hours but not more than 7 days. |
55 | $11 | $50 |
| Continuous EKG monitoring review, 48-7 days Review and interpretation of continuous external EKG recordings lasting more than 48 hours up to 7 days. |
55 | $20 | $50 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
53 | $13 | $20 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
53 | $29 | $45 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
53 | $13 | $20 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
53 | $14 | $20 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
53 | $10 | $15 |
| Iron level test | 53 | $6 | $12 |
| Iron binding capacity test A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron. |
53 | $9 | $16 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
53 | $7 | $12 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
53 | $9 | $16 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
53 | $16 | $22 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
53 | $17 | $22 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
53 | $4 | $10 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
53 | $8 | $15 |
| Erythrocyte sedimentation rate (ESR) test A blood test that measures how quickly red blood cells settle in a test tube to detect inflammation in the body. This specific method is performed manually rather than using an automated machine. |
53 | $4 | $10 |
| High-sensitivity C-reactive protein test A blood test that measures high-sensitivity C-reactive protein to detect infection or inflammation. |
53 | $13 | $20 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
50 | $15 | $20 |
| Coronary angiography A procedure to insert a tube into a coronary artery to capture diagnostic images of the heart's blood vessels. |
42 | $150 | $550 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
40 | $82 | $180 |
| Coronary stent placement A procedure to insert a stent into a coronary artery or its branch to keep it open, using balloon dilation during the process. |
37 | $412 | $1,400 |
| Transesophageal echocardiogram An ultrasound of the heart performed using a probe inserted into the esophagus to obtain detailed images of heart structures and function. |
37 | $89 | $195 |
| Echocardiogram, transthoracic An ultrasound test that uses sound waves to create images of the heart's blood flow, valves, and chambers. |
37 | $15 | $95 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
37 | $3 | $95 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
35 | $8 | $16 |
| Liver function blood test panel | 35 | $8 | $16 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while an electrocardiogram is monitored under physician supervision. |
31 | $18 | $150 |
| Technetium Tc-99m tetrofosmin diagnostic injection A diagnostic injection of Technetium Tc-99m tetrofosmin used for imaging studies. |
30 | $75 | $150 |
| Sex hormone binding globulin level test A blood test that measures the level of sex hormone binding globulin, a protein that binds to sex hormones in the bloodstream. |
28 | $21 | $85 |
| Free testosterone level test A blood test that measures the amount of free testosterone in your body. Free testosterone is the portion of the hormone not bound to proteins and available for use by tissues. |
28 | $25 | $100 |
| Total testosterone level test A blood test that measures the total amount of testosterone in your body. This hormone is important for various bodily functions in both men and women. |
28 | $25 | $100 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
28 | $12 | $150 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
20 | $10 | $20 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
19 | $170 | $425 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
17 | $126 | $280 |
| PSA test (prostate cancer screening) | 15 | $18 | $49 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | 15 | $250 | $750 |
| Chemical destruction of first incompetent vein with imaging guidance This procedure uses imaging guidance to chemically destroy the first incompetent vein in the arm or leg. |
14 | $1,561 | $3,200 |
| External shock to heart to regulate heart beat A procedure that delivers an electric shock to the heart from outside the body to restore a normal heart rhythm. |
11 | $91 | $450 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
8.6% high complexity
4.6% medium
86.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$27,131
Total received (2018-2024)
Avg $3,876/year across 7 years
Top 14% in CA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
38
Companies
358
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$21,479 (79.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$5,652 (20.8%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$3,268
2023
$3,445
2022
$9,043
2021
$3,454
2020
$1,516
2019
$2,817
2018
$3,587
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$983
W. L. Gore & Associates, Inc.
$451
Medtronic, Inc.
$436
ShockWave Medical, Inc
$344
Actelion Pharmaceuticals US, Inc.
$276
Boston Scientific Corporation
$254
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$149
Merck Sharp & Dohme LLC
$133
E.R. Squibb & Sons, L.L.C.
$119
Philips North America LLC
$73
iRhythm Technologies, Inc.
$19
ABIOMED
$16
Novartis Pharmaceuticals Corporation
$14
Top 3 companies account for 57.2% of 2024 payments
All-time payments by company (2018-2024) ›
Abbott Laboratories
$7,930
Actelion Pharmaceuticals US, Inc.
$7,274
ABIOMED
$1,534
Boston Scientific Corporation
$1,373
Penumbra, Inc.
$976
AstraZeneca Pharmaceuticals LP
$723
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$720
Impulse Dynamics (USA) Inc.
$707
Medtronic, Inc.
$693
Janssen Pharmaceuticals, Inc
$624
CVRx, Inc.
$475
W. L. Gore & Associates, Inc.
$451
United Therapeutics Corporation
$416
E.R. Squibb & Sons, L.L.C.
$401
ShockWave Medical, Inc
$344
Amgen Inc.
$263
Novartis Pharmaceuticals Corporation
$252
Medtronic Vascular, Inc.
$232
Philips Electronics North America Corporation
$182
Merck Sharp & Dohme LLC
$165
ATRICURE, INC.
$159
Edwards Lifesciences Corporation
$151
Amarin Pharma Inc.
$126
Incyte Corporation
$125
BOSTON SCIENTIFIC CORPORATION
$120
Agios Pharmaceuticals, Inc.
$113
Astellas Pharma US Inc
$97
Terumo Medical Corporation
$83
Philips North America LLC
$73
Shockwave Medical, Inc
$63
Gilead Sciences, Inc.
$56
iRhythm Technologies, Inc.
$53
Esperion Therapeutics, Inc.
$52
Bard Peripheral Vascular, Inc.
$42
Teleflex LLC
$25
Boehringer Ingelheim Pharmaceuticals, Inc.
$22
Lexicon Pharmaceuticals, Inc.
$16
GE HEALTHCARE
$16
Top 3 companies account for 61.7% of all-time payments
Associated products mentioned in payments ›
(5154) Azurion 7 M20 GC · (9267) AngioSculpt CV RX · (BQ9) Coronary IVUS · ABSOLUTE PRO · AZURE XT DR MRI SURESCAN · Allure Quadra RF CRT Pacemaker · Asahi Fielder coronary guide wire · BRILINTA · Barostim Neo System · CAMZYOS · CARDIOMEMS · COBALT DR MRI SURESCAN · CONFIRM RX · COROFLOW · CardioMEMS HF System · ClosureFast · Confirm Rx · Dragonfly OCT · Durata Defibrillation ICD Lead · ELIQUIS · EMBLEM · EMBLEM MRI S-ICD · ENTRESTO · Edwards SAPIEN 3 Transcatheter Heart Valve · Ellipse ICD · FARXIGA · FORTIFY ASSURA · Fortify Assura · GORE CARDIOFORM Septal Occluder · INGEVITY MRI · INVOKANA · Impella · Indigo System · Inpefa · JARDIANCE · LANGSTON · LEQVIO · LEXISCAN · LINQ II · LifeVest · MERLIN@HOME · MICRA · MITRACLIP · MONJUVI · MRI Ready Leads · Merlin Connectivity and Remote · Mitra Clip system · MitraClip System · NEXLETOL · NONE · OPSUMIT · OPSUMIT MACITENTAN · OPTIMIZER · ORENITRAM · OptiSense Pacing Lead · Optimizer · Optisure Defibrillation ICD Lead · Optitorque · PRESSUREWIRE · Pacemakers · Perclose ProGlide suture mediated closure system · Quadra Allure MP RF CRT Pacemkr · Quadra Assura CRT Defibrillator · Quartet CRT Lead · RESONATE · Repatha · Resolute · S ICD · S-ICD System Magnet · SQ-RX PULSE GENERATOR · SQRX PULSE GENERATOR · SYNERGY ABLATION SYSTEM · Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Supera peripheral stent system · TIBSOVO · TR BAND · UPTRAVI · VERQUVO · Valiant Captivia · Vascepa · Vascular Lithotripsy · WATCHMAN · WINREVAIR · XARELTO · XIENCE V · Xience V coronary stent system · ZIO XT Patch
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (79%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Cardiologists within 10 mi
592
Per 100K population
6.0
County median income
$87,760
Nearest hospital
GLENDALE MEM HOSPITAL & HLTH CENTER
0.0 mi
0.0 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. Marwah is a clinical cardiology specialist, with above-average Medicare volume (top 11% in CA), with low-engagement industry engagement in the top 14% of CA peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Marwah experienced with electrocardiogram (ekg), 12-lead?
Based on Medicare claims data, Dr. Marwah performed 1,428 electrocardiogram (ekg), 12-lead services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Marwah receive payments from pharmaceutical companies?
Yes. Dr. Marwah received a total of $27,131 from 38 companies across 358 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Marwah's costs compare to other cardiologists in Glendale?
Dr. Marwah's average Medicare payment per service is $61. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Marwah) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
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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