Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > CA Providers

Dr. Stephen John Ierardi, MD

(1 Rating)

Specializes in: Osteopathic Manipulative Medicine and Family Medicine

University of Rochester School of Medicine and Dentistry (1986)

24422 Avenida De La Carlota Suite 272
Laguna Hills, CA 92653

(949) 282-6500

Dr. Stephen John Ierardi, MD is an osteopath in Laguna Hills, CA specializing in osteopathic manipulative medicine and family medicine. He graduated from University of Rochester School of Medicine and Dentistry in 1986 and has 40 years of experience. Dr. Stephen John Ierardi, MD is affiliated with Saddleback Medical Center and MemorialCare.

Office Locations

24411 Health Center Drive Suite 670
Laguna Hills, CA 92653

(949) 452-7755

(949) 452-7750

open_in_new

24422 Avenida De La Carlota Suite 272
Laguna Hills, CA 92653

(949) 282-6500

(949) 282-6501

open_in_new

In The News

“But Dr. Steve Ierardi, a family practitioner, had an excuse for his fumbling.”—"Disabled: It's Only a Word Till You Try It : Health care: Simulating handicaps show a concerned group just how difficult they are and how much courage, patience and determination it takes to overcome them.", Los Angeles Times, March 2025

“Dr. Stephen Ierardi, family practice doctor at Saddleback Memorial Medical Center in Laguna Hills, says headaches are the most common head-related complaint he gets from patients - everything from...”—"Keep your head on", The Orange County Register, September 2006

“"I think that 'alternative' remedies have emerged for colds and flu because doctors have told patients coldly, 'It's a virus, there's nothing I can do for you, go home,'" said Dr. Stephen Ierardi,...”—"Fighting the cold and flu blues", The Orange County Register, October 2005

Noteworthy Medicare Patient Procedures Performed by Dr. Stephen John Ierardi, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

complete blood count

fecal occult blood test

intensive behavioral therapy for obesity

screening stool guaiac test

In 2023, Dr. Stephen John Ierardi, MD performed more complete blood count (CBC), fecal occult blood test (FOBT), intensive behavioral therapy (IBT) for obesity, lab tests, lipid profile, liver panel, preventive care, screening stool guaiac test (gFOBT), serum folate test, thyroid blood test, total PSA test, and uric acid blood test procedures for Medicare patients than 95% of providers in related specialties within California.

Top 10%

By Volume:

urinalysis

In 2023, Dr. Stephen John Ierardi, MD performed more urinalysis procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

A1C test

In 2012, Dr. Stephen John Ierardi, MD performed more A1C test procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	143

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	184

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	53
Female	62

**Ethnicity**
Non-Hispanic White	98
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2013

Hypertension	54
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	24
Depression	13
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	13
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	174

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	57
Female	61

**Ethnicity**
Non-Hispanic White	103
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2014

Hypertension	35
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	20
Depression	12
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	21
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA during 2015 were preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	191
lab tests	12
preventive care	32
vaccines	20

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	120
Female	124

**Ethnicity**
Non-Hispanic White	206
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	74
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2015

Hypertension	46
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	22
Depression	11
Chronic Kidney Disease	10
Asthma	11
Osteoperosis	16
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA during 2016 were preventive care, lab tests and vaccines.

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	223
lab tests	39
preventive care	51
vaccines	12

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	67
Female	67

**Ethnicity**
Non-Hispanic White	115
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	77
From 75 to 84	33
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2016

Hypertension	49
High Cholesterol	38
Stroke	0
Ischemic Heart Disease	22
Depression	15
Chronic Kidney Disease	16
Asthma	10
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA during 2017 were preventive care, lab tests, weight management and mental health therapy.

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	216
lab tests	41
mental health therapy	37
preventive care	60
vaccines	19
weight management	37

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	73
Female	65

**Ethnicity**
Non-Hispanic White	118
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	41
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2017

Hypertension	54
High Cholesterol	34
Stroke	0
Ischemic Heart Disease	23
Depression	20
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA during 2018 were weight management, mental health therapy, lab tests and preventive care.

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	266
lab tests	40
mental health therapy	41
preventive care	40
weight management	41

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	69
Female	73

**Ethnicity**
Non-Hispanic White	124
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	46
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2018

Hypertension	55
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	18
Depression	15
Chronic Kidney Disease	32
Asthma	10
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	11
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA during 2019 were lab tests, preventive care, weight management and mental health therapy.

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	264
lab tests	40
mental health therapy	28
preventive care	40
weight management	28

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	65
Female	61

**Ethnicity**
Non-Hispanic White	107
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	72
From 75 to 84	39
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2019

Hypertension	59
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	21
Depression	17
Chronic Kidney Disease	38
Asthma	0
Osteoperosis	9
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA during 2020 were lab tests, preventive care, weight management and mental health therapy.

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	267
lab tests	40
mental health therapy	31
preventive care	40
weight management	31

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	65
Female	59

**Ethnicity**
Non-Hispanic White	110
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	68
From 75 to 84	42
85 and over	14
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2020

Hypertension	63
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	22
Depression	16
Chronic Kidney Disease	40
Asthma	10
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA during 2021 were preventive care, lab tests, weight management and mental health therapy.

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

doctor visit	307
lab tests	52
mental health therapy	28
preventive care	65
weight management	28

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	78
Female	67

**Ethnicity**
Non-Hispanic White	127
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	46
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2021

Hypertension	62
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	23
Depression	13
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	10
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA during 2022 were lab tests, thyroid function tests, preventive care and blood draw.

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

blood draw	63
diabetes management	45
doctor visit	399
lab tests	821
mental health therapy	34
preventive care	140
thyroid function tests	169
weight management	34

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	105
Female	99

**Ethnicity**
Non-Hispanic White	176
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	67
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD in 2022

Hypertension	70
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	22
Depression	17
Chronic Kidney Disease	35
Asthma	13
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	29
Dementia	7
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Stephen John Ierardi, MD for Medicare patients.

The highest averages for the top procedures that Dr. Stephen John Ierardi, MD treated as an osteopath in Laguna Hills, CA were thyroid function tests, lab tests, blood draw and preventive care.

blood draw	63
diabetes management	45
doctor visit	239
lab tests	135
mental health therapy	33
preventive care	58
thyroid function tests	169
vaccines	17
weight management	33

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Stephen John Ierardi, MD.

**Gender**
Male	68
Female	67

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	116
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	38
85 and over	1
Less than 65	0
65 to 74	75

Average of Total of Conditions of Medicare patients treated by Dr. Stephen John Ierardi, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Stephen John Ierardi, MD treated were high cholesterol, hypertension, chronic kidney disease and ischemic heart disease.

Hypertension	49
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	19
Depression	13
Chronic Kidney Disease	21
Asthma	6
Osteoporosis	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	2
Diabetes	17
Atrial Fibrillation	1
Dementia	4
Cancer	11

Education & Training

Dr. Stephen John Ierardi, MD graduated from University of Rochester School of Medicine and Dentistry in 1986. He completed residency at University of California, Irvine Affiliated Hospitals. He has a state license in California.

Medical School: University of Rochester School of Medicine and Dentistry (1986)

Residency: University of California, Irvine Affiliated Hospitals (1989)

Licensed In: California

Affiliations & Hospitals

Dr. Stephen John Ierardi, MD is associated with these hospitals and organizations:

Saddleback Medical Center

MemorialCare

Ratings & Reviews

Dr. Stephen John Ierardi, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Stephen John Ierardi, MD from all over the web to help you find the right in Laguna Hills, CA.

Overall Rating

(1 Rating)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2023-04-19

Dr. Ierardi takes the time to explain all tests and health issues thoroughly, and is very positive and highly knowledgeable. It’s rare these days to have a doctor spend so much time and focus on one patient.  He’s also very funny and answers your questions, as he loves to educate us on our own health.  Highly recommended!!

General Payments

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

**Payments by Company**
Boehringer Ingelheim Pharmaceuticals, Inc.	$3,495 JARDIANCE $2,227	GLYXAMBI $658	Pradaxa $124	STIOLTO $2	$483
Lilly USA, LLC	$2,689 TRULICITY $773	JARDIANCE $570	MOUNJARO $520	EMGALITY $315	TRADJENTA $101	Other $411
Janssen Pharmaceuticals, Inc	$2,114 XARELTO $1,280	INVOKANA $828	$6
Pfizer Inc.	$1,748 PREVNAR 13 $362	PREVNAR 20 $300	PREVNAR - 13 $289	LYRICA $249	ELIQUIS $169	Other $380
Amgen Inc.	$1,528 Repatha $644	Prolia $518	EVENITY $237	Aimovig $121	$9
Other	$11,078 Synthroid $1,089	UBRELVY $893	Kerendia $773	Androgel $494	Victoza $461	Other $7,369

**Types of Payments**
Food and Beverage	$22,468
Consulting Fee	$127
Education	$40
Travel and Lodging	$18

Biography

Dr. Stephen Ierardi's areas of specialization are family medicine and osteopathic manipulative medicine; he sees patients in Laguna Hills, CA. Before performing his residency at a hospital affiliated with the University of California, Irvine, Dr. Ierardi attended the University of Rochester School of Medicine and Dentistry for medical school. He is affiliated with Saddleback Medical Center.