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Home > CA Providers > Cardiac Surgeons

Dr. Jonathan Aaron Praeger, MD

(13 Ratings)

Specializes in: Cardiac Surgery and Transplant Surgery

Professional interests include: arrhythmias (irregular heartbeats), heart valve repair, heart valve surgery, and more.

1441 Eastlake Avenue
Los Angeles, CA 90033

1-800-872-2273

Dr. Jonathan Aaron Praeger, MD is a cardiac surgeon in Los Angeles, CA specializing in cardiac surgery and transplant surgery. Dr. Jonathan Aaron Praeger, MD is affiliated with Keck Medicine of USC, U.S. Department of Veterans Affairs, Keck Medical Center of USC and USC Arcadia Hospital.

Office Locations

Keck Medical Center of USC

1441 Eastlake Avenue
Los Angeles, CA 90033

1-800-872-2273

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1520 San Pablo Street Suite 4300
Los Angeles, CA 90033

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Keck Medical Center of USC

300 W. Huntington Drive
Arcadia, CA 91007

1-888-388-2838

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3801 Miranda Avenue Palo Alto Vahcs (640)
Palo Alto, CA 94304

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Keck Medical Center of USC

590 S. Fair Oaks Avenue Suite 307
Pasadena, CA 91105

(626) 568-1622

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In The News

“When Berta and Jon Praeger got the opportunity to buy the house they had been renting, they redid almost everything.”—"They Went From Renters to Renovators in Los Angeles", New York Times, February 2026

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jonathan Aaron Praeger, MD treated as a cardiac surgeon in Los Angeles, CA during 2020 were cardiac procedures, minimally invasive procedures and vascular procedures.

Volume of procedures performed by Dr. Jonathan Aaron Praeger, MD for Medicare patients.

cardiac procedures	22
minimally invasive procedures	11
vascular procedures	11

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Aaron Praeger, MD.

**Ethnicity**
Non-Hispanic White	11
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Conditions of Medicare patients treated by Dr. Jonathan Aaron Praeger, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	0
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	75
Chronic Obstructive Pulmonary Disease	0
Diabetes	64
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jonathan Aaron Praeger, MD treated as a cardiac surgeon in Los Angeles, CA during 2021 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and minimally invasive procedures.

Volume of procedures performed by Dr. Jonathan Aaron Praeger, MD for Medicare patients.

bypass surgery	13
cardiac procedures	64
minimally invasive procedures	19
open surgery	26
thoracic (chest) surgery procedures	26
vascular procedures	19

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Aaron Praeger, MD.

**Gender**
Male	46
Female	28

**Ethnicity**
Non-Hispanic White	39
Black	0
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	26
From 75 to 84	24
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathan Aaron Praeger, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	23
Ischemic Heart Disease	75
Depression	31
Chronic Kidney Disease	75
Asthma	18
Osteoperosis	0
Atrial Fibrilation	39
Heart Failure	75
Chronic Obstructive Pulmonary Disease	28
Diabetes	59
Dementia	22
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Jonathan Aaron Praeger, MD for Medicare patients.

doctor visit	19

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan Aaron Praeger, MD.

**Gender**
Male	36
Female	37

**Ethnicity**
Non-Hispanic White	45
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	25
From 75 to 84	23
85 and over	13
Less than 65	12

Conditions of Medicare patients treated by Dr. Jonathan Aaron Praeger, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	30
Ischemic Heart Disease	75
Depression	23
Chronic Kidney Disease	64
Asthma	0
Osteoperosis	0
Atrial Fibrilation	66
Heart Failure	75
Chronic Obstructive Pulmonary Disease	26
Diabetes	58
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2020 - 2022

Volume of procedures performed by Dr. Jonathan Aaron Praeger, MD for Medicare patients.

The highest averages for the top procedures that Dr. Jonathan Aaron Praeger, MD treated as a cardiac surgeon in Los Angeles, CA were cardiac procedures, thoracic (chest) surgery procedures, open surgery and minimally invasive procedures.

bypass surgery	13
cardiac procedures	43
doctor visit	19
minimally invasive procedures	15
open surgery	26
thoracic (chest) surgery procedures	26
vascular procedures	15

Average Medicare Patient Data From 2020 - 2022

Information about Medicare patients treated by Dr. Jonathan Aaron Praeger, MD.

**Gender**
Female	21
Male	27

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	31
Hispanic	10
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	4
75 to 84	15
Less than 65	4
65 to 74	17

Average of Total of Conditions of Medicare patients treated by Dr. Jonathan Aaron Praeger, MD From 2020 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Jonathan Aaron Praeger, MD treated were heart failure, high cholesterol, hypertension and ischemic heart disease.

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	75
Depression	18
Chronic Kidney Disease	71
Asthma	6
Osteoporosis	0
Heart Failure	75
Chronic Obstructive Pulmonary Disease	18
Diabetes	60
Atrial Fibrillation	35
Dementia	7
Cancer	5

Education & Training

He is certified by the Cardiothoracic Surgery - Board Certified and has a state license in California.

Board Certification: Cardiothoracic Surgery - Board Certified

Licensed In: California

Affiliations & Hospitals

Dr. Jonathan Aaron Praeger, MD is associated with these hospitals and organizations:

Keck Medicine of USC

U.S. Department of Veterans Affairs

Keck Medical Center of USC

USC Arcadia Hospital

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Jonathan Aaron Praeger, MD appears to accept the following insurance providers: Humana ChoiceCare Network, Great-West Healthcare, Blue Shield of California, MultiPlan, TriWest, United Healthcare, Interplan, Aetna, Medicare, Coventry, Cigna, GEHA, Anthem, First Health, Private Healthcare Systems (PHCS), Beech Street, PacifiCare, Health Net, Brand New Day, Marian Health Services, Watchtower, Health Net Covered California, Kern Health Systems, Laundry and Dry Cleaning Workers Health & Welfare, USC Network, Take Care (GUAM), Union Roofers Health & Welfare Fund, Blue Shield Covered California, Presbyterian Intercommunity Hospital, NEXT and Health Plans of Nevada.

Insurance Accepted by Provider includes:

According to our sources, Dr. Jonathan Aaron Praeger, MD accepts the following insurance providers:

Humana ChoiceCare Network

Great-West Healthcare

Blue Shield of California

MultiPlan

TriWest

United Healthcare

Interplan

Aetna

Medicare

Coventry

Cigna

GEHA

Anthem

First Health

Private Healthcare Systems (PHCS)

Beech Street

PacifiCare

Health Net

Brand New Day

Marian Health Services

Watchtower

Health Net Covered California

Kern Health Systems

Laundry and Dry Cleaning Workers Health & Welfare

USC Network

Take Care (GUAM)

Union Roofers Health & Welfare Fund

Blue Shield Covered California

Presbyterian Intercommunity Hospital

Health Plans of Nevada

Ratings & Reviews

Dr. Jonathan Aaron Praeger, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 13 ratings. We collect ratings and reviews of Dr. Jonathan Aaron Praeger, MD from all over the web to help you find the right in Los Angeles, CA.

Overall Rating

(13 Ratings)

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General Payments

These charts describe general payments received by Dr. Jonathan Aaron Praeger, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Abbott Laboratories	$3,362 THORATEC HEARTMATE 3 LVAS IMPLANT KIT $1,477	CentriMag $609	2ND GEN CENTRIMAG PRIMARY CONSOLE $416	EnSite X $293	Epic Stented Tissue Valve $199	Other $369
Edwards Lifesciences Corporation	$3,076 INSPIRIS RESILIA aortic valve $1,567	MITRIS RESILIA Mitral Valve $833	Edwards SAPIEN 3 Ultra Transcatheter Heart Valve $219	CARPENTIER-EDWARDS PERIMOUNT MAGNA MITRAL EASE PERICARDIAL BIOPROSTHESIS $54	EDWARDS INTUITY Elite valve system $38	Other $364
AtriCure, Inc.	$2,732 DISSECTOR $1,078	SYNERGY ABLATION SYSTEM $925	ATRICLIP LAA EXCLUSION SYSTEM $437	EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX $148	ISOLATOR SURGICAL ABLATION SYSTEM $63	Other $81
ABIOMED	$2,652 Impella $2,652
Medtronic Vascular, Inc.	$957 HeartWare HVAD $957
Other	$244 AMDS-Ascyrus Medical $150	FLOSEAL $52	ON-X AORTIC HEART VALVE WITH CONFORM-X SEWING RING AND EXTENDED HOLDER $24	BIOGLUE SURGICAL ADHESIVE $18

**Types of Payments**
Food and Beverage	$9,946
Travel and Lodging	$3,078

Research Payments

Dr. Jonathan Aaron Praeger, MD has received 1 research payments totaling $3,000.

Biography

Dr. Jonathan Praeger practices cardiac surgery and transplant surgery. In addition to English, he speaks Hungarian. Areas of expertise for Dr. Praeger include heart transplant, heart valve surgery, and extracorporeal membrane oxygenation (ECMO). Dr. Praeger is affiliated with Keck Medical Center of USC, USC Arcadia Hospital, and U.S. Department of Veterans Affairs. Patient reviews placed Dr. Praeger at an average of 5.0 stars (out of 5). He usually honors Anthem, PacifiCare, and Blue California, in addition to other insurance carriers. He has received the distinction of Southern California Rising Stars.