Medicare Enrolled
Dr. Mohammad Hajjar, M.D
Cardiovascular Disease · Santa Ana, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Hajjar 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. Hajjar
Dr. Mohammad Hajjar is a cardiovascular disease specialist in Santa Ana, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Hajjar performed 4,911 Medicare services across 2,386 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hajjar received a total of $14,505 from 31 pharmaceutical and/or device companies across 324 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. Hajjar 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.
✓ 18 years in practice
▲ Top 20% volume in CA
$14,505 industry payments
Medicare Practice Summary
Medicare Utilization ↗4,911
Medicare services
Top 20% in CA for cardiovascular disease
2,386
Unique beneficiaries
$90
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~273 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 |
|---|---|---|---|
| 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. |
1,673 | $102 | $253 |
| 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. |
1,140 | $68 | $169 |
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
557 | $7 | $20 |
| 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. |
502 | $148 | $440 |
| 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. |
352 | $100 | $285 |
| 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. |
108 | $111 | $300 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
90 | $180 | $610 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
85 | $161 | $480 |
| 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. |
80 | $12 | $40 |
| 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. |
73 | $10 | $50 |
| Cardiac catheterization | 59 | $182 | $640 |
| 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. |
41 | $12 | $35 |
| 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. |
40 | $18 | $50 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
28 | $42 | $105 |
| 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. |
26 | $434 | $1,202 |
| 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. |
26 | $115 | $400 |
| 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. |
18 | $138 | $370 |
| Stent placement and plaque removal in one vessel A procedure to clear plaque and blood clots from a single blood vessel, followed by the insertion of a stent and/or balloon dilation to keep the vessel open. |
13 | $539 | $1,435 |
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.
3.7% high complexity
1.6% medium
94.6% routine
Industry Payment Transparency
Open Payments through 2024 ↗$14,505
Total received (2018-2024)
Avg $2,072/year across 7 years
Top 22% in CA for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
31
Companies
324
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
$14,321 (98.7%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$183 (1.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$691
2023
$830
2022
$1,475
2021
$1,240
2020
$819
2019
$2,665
2018
$6,783
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Kiniksa Pharmaceuticals International, plc
$229
Bayer Healthcare Pharmaceuticals Inc.
$78
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$76
AstraZeneca Pharmaceuticals LP
$65
Amgen Inc.
$59
Novartis Pharmaceuticals Corporation
$48
ABIOMED
$45
Lexicon Pharmaceuticals, Inc.
$23
Merck Sharp & Dohme LLC
$18
SCPHARMACEUTICALS INC.
$17
CARDIVA MEDICAL, INC.
$17
PFIZER INC.
$16
Top 3 companies account for 55.5% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic Vascular, Inc.
$6,282
Boston Scientific Corporation
$1,536
ABIOMED
$1,166
Novartis Pharmaceuticals Corporation
$1,064
AstraZeneca Pharmaceuticals LP
$820
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$708
Amgen Inc.
$499
Janssen Pharmaceuticals, Inc
$377
Abbott Laboratories
$341
Kiniksa Pharmaceuticals International, plc
$229
Novo Nordisk Inc
$176
Edwards Lifesciences Corporation
$158
Merck Sharp & Dohme LLC
$147
PFIZER INC.
$143
Impulse Dynamics (USA) Inc.
$135
SANOFI-AVENTIS U.S. LLC
$122
Bayer Healthcare Pharmaceuticals Inc.
$78
Boehringer Ingelheim Pharmaceuticals, Inc.
$74
Regeneron Healthcare Solutions, Inc.
$65
BOSTON SCIENTIFIC CORPORATION
$56
Merck Sharp & Dohme Corporation
$50
CARDIVA MEDICAL, INC.
$49
E.R. Squibb & Sons, L.L.C.
$42
BIOTRONIK INC.
$37
Cardiovascular Systems Inc.
$36
Bardy Diagnostics, Inc.
$23
Lexicon Pharmaceuticals, Inc.
$23
W. L. Gore & Associates, Inc.
$19
SCPHARMACEUTICALS INC.
$17
AngioDynamics, Inc.
$17
Medtronic MiniMed, Inc.
$15
Top 3 companies account for 61.9% of all-time payments
Associated products mentioned in payments ›
ALPHAVAC · Arcalyst · BRILINTA · CARDIOFORM Septal Occluder · CARDIVA VASCADE MVP VVCS 6-12F · Carnation Ambulatory Monitor · Confirm Rx · Corlanor · Coronary Orbital Atherectomy System · DIAMONDBACK CORONARY · EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) · ELIQUIS · EMBLEM · EMBLEM MRI S-ICD · ENTRESTO · Edwards SAPIEN 3 Transcatheter Heart Valve · FARXIGA · FUROSCIX · GENERAL ATHERECTOMY · GENERAL CATHETERS · GENERAL THERAPIES · GENERAL - THERAPIES · Impella · JARDIANCE · Kerendia · LEQVIO · LUX DX · LifeVest · MITRACLIP · Micra · Mitra Clip system · MitraClip System · OPTOWIRE · Optimizer Smart System · Ozempic · PK Papyrus · PRALUENT · RESONATE · Repatha · Resolute · VERQUVO · VIGILANT · VYNDAMAX · WATCHMAN Access System · XARELTO · iPro2
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 (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Cardiologists within 10 mi
267
Per 100K population
8.4
County median income
$113,702
Nearest hospital
COASTAL COMMUNITIES HOSPITAL
2.1 mi
2.1 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. Hajjar is a mixed practice specialist, with above-average Medicare volume (top 20% in CA), with low-engagement industry engagement, with 18 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. Hajjar experienced with hospital follow-up visit, high complexity?
Based on Medicare claims data, Dr. Hajjar performed 1,673 hospital follow-up visit, high complexity 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. Hajjar receive payments from pharmaceutical companies?
Yes. Dr. Hajjar received a total of $14,505 from 31 companies across 324 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. Hajjar's costs compare to other cardiologists in Santa Ana?
Dr. Hajjar's average Medicare payment per service is $90. 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. Hajjar) 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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