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Dr. Lisa Hertz, MD

(30 Ratings)

Specializes in: Adult Gastroenterology

Harvard Medical School (1984)

4772 Katella Avenue Suite 200
Los Alamitos, CA

(562) 596-5552

Dr. Lisa Hertz, MD is a gastroenterologist in Los Alamitos, CA specializing in adult gastroenterology. She graduated from Harvard Medical School in 1984 and has 42 years of experience. Dr. Lisa Hertz, MD is affiliated with Long Beach Medical Center, MemorialCare, Unio Specialty Care and Miller Children s & Women s Hospital Long Beach.

Office Locations

4772 Katella Avenue #200
Los Alamitos, CA 90720

(562) 596-5552

(562) 596-5340

open_in_new

Miller Children s & Women s Hospital Long Beach

4772 Katella Avenue Suite 200
Los Alamitos, CA

(562) 596-5552

open_in_new

In The News

“Dr. Lisa Hertz of Los Alamitos, Dr. David Payne of Irvine and Orange pediatrician Kenneth Akey can jokingly reassure their patients that their names don't reflect their skills.”—"Funny doctor names help the medicine go down", The Orange County Register, September 2007

Noteworthy Medicare Patient Procedures Performed by Dr. Lisa Hertz, MD in 2023

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

Top 5%

By Volume:

diagnostic stool guaiac test

By Affordability:

diagnostic fecal occult blood test

diagnostic stool guaiac test

In 2023, among providers in related specialties within California, Dr. Lisa Hertz, MD performed more diagnostic stool guaiac test (gFOBT) procedures for Medicare patients than 95% of them and she also had a list price for diagnostic fecal occult blood test (FOBT), and diagnostic stool guaiac test (gFOBT) that was lower than the list prices billed to Medicare by 95% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Affordability:

fecal occult blood test

stool guaiac test

stool tests

In 2012, Dr. Lisa Hertz, MD had a list price for fecal occult blood test (FOBT), stool guaiac test (gFOBT), and stool tests that was lower than the list prices billed to Medicare by 75% of providers in related specialties within California. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2012 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	145
doctor visit	538
gastrointestinal procedures	180
hospital care	106
inpatient care	106
minimally invasive procedures	180
preventive care	35
removal of lesion (e.g. growth)	145

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2013 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	133
doctor visit	484
gastrointestinal procedures	148
hospital care	79
inpatient care	79
minimally invasive procedures	148
preventive care	15
removal of lesion (e.g. growth)	133

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	71
Female	252

**Ethnicity**
Non-Hispanic White	259
Black	23
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	105
85 and over	33
Less than 65	27

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2013

Hypertension	65
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	22
Asthma	11
Osteoperosis	15
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	24
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2014 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	246
doctor visit	688
gastrointestinal procedures	281
hospital care	162
inpatient care	162
lab tests	11
minimally invasive procedures	281
preventive care	35
removal of lesion (e.g. growth)	246

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	108
Female	333

**Ethnicity**
Non-Hispanic White	337
Black	35
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	151
85 and over	44
Less than 65	30

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2014

Hypertension	71
High Cholesterol	64
Stroke	5
Ischemic Heart Disease	32
Depression	22
Chronic Kidney Disease	26
Asthma	12
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	9
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2015 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	241
doctor visit	697
gastrointestinal procedures	265
hospital care	124
inpatient care	124
lab tests	60
minimally invasive procedures	265
preventive care	24
removal of lesion (e.g. growth)	241

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	202
Female	702

**Ethnicity**
Non-Hispanic White	718
Black	52
Hispanic	74
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	488
From 75 to 84	294
85 and over	70
Less than 65	52

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2015

Hypertension	66
High Cholesterol	64
Stroke	6
Ischemic Heart Disease	31
Depression	22
Chronic Kidney Disease	24
Asthma	15
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2016 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	295
doctor visit	951
gastrointestinal procedures	343
hospital care	153
inpatient care	153
lab tests	106
minimally invasive procedures	343
preventive care	48
removal of lesion (e.g. growth)	295

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	127
Female	411

**Ethnicity**
Non-Hispanic White	419
Black	29
Hispanic	50
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	285
From 75 to 84	172
85 and over	51
Less than 65	30

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2016

Hypertension	65
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	28
Asthma	18
Osteoperosis	15
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	9
Cancer	17

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2017 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	286
doctor visit	989
gastrointestinal procedures	302
hospital care	134
inpatient care	134
lab tests	91
minimally invasive procedures	302
preventive care	16
removal of lesion (e.g. growth)	286

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	128
Female	449

**Ethnicity**
Non-Hispanic White	443
Black	37
Hispanic	50
Asian	27
Other	0
Native American	0

**Age**
From 65 to 74	293
From 75 to 84	189
85 and over	71
Less than 65	24

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2017

Hypertension	66
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	16
Atrial Fibrilation	10
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Dementia	10
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	326
doctor visit	1108
gastrointestinal procedures	371
hospital care	37
inpatient care	37
lab tests	111
minimally invasive procedures	371
preventive care	45
removal of lesion (e.g. growth)	326

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	118
Female	457

**Ethnicity**
Non-Hispanic White	450
Black	33
Hispanic	48
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	317
From 75 to 84	178
85 and over	57
Less than 65	23

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2018

Hypertension	65
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	31
Depression	22
Chronic Kidney Disease	28
Asthma	11
Osteoperosis	16
Atrial Fibrilation	9
Heart Failure	18
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	253
doctor visit	898
gastrointestinal procedures	298
hospital care	41
inpatient care	41
lab tests	147
liver imaging	42
minimally invasive procedures	298
preventive care	45
removal of lesion (e.g. growth)	253
ultrasound (sonogram)	42

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	115
Female	438

**Ethnicity**
Non-Hispanic White	436
Black	28
Hispanic	52
Asian	20
Other	17
Native American	0

**Age**
From 65 to 74	305
From 75 to 84	176
85 and over	57
Less than 65	15

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2019

Hypertension	64
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	26
Asthma	12
Osteoperosis	18
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	9
Diabetes	25
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	200
doctor visit	681
gastrointestinal procedures	226
lab tests	123
liver imaging	25
minimally invasive procedures	226
preventive care	26
removal of lesion (e.g. growth)	200
ultrasound (sonogram)	25

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	88
Female	370

**Ethnicity**
Non-Hispanic White	374
Black	22
Hispanic	29
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	277
From 75 to 84	125
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2020

Hypertension	60
High Cholesterol	59
Stroke	3
Ischemic Heart Disease	27
Depression	22
Chronic Kidney Disease	23
Asthma	8
Osteoperosis	19
Atrial Fibrilation	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	21
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	267
doctor visit	722
gastrointestinal procedures	318
lab tests	133
liver imaging	49
minimally invasive procedures	318
preventive care	51
removal of lesion (e.g. growth)	267
ultrasound (sonogram)	49

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	90
Female	421

**Ethnicity**
Non-Hispanic White	413
Black	19
Hispanic	39
Asian	19
Other	21
Native American	0

**Age**
From 65 to 74	301
From 75 to 84	159
85 and over	37
Less than 65	14

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2021

Hypertension	64
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	28
Depression	21
Chronic Kidney Disease	22
Asthma	9
Osteoperosis	20
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	7
Diabetes	23
Dementia	8
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

diagnostic procedures	229
doctor visit	746
gastrointestinal procedures	267
lab tests	114
minimally invasive procedures	267
preventive care	38
removal of lesion (e.g. growth)	229

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	92
Female	375

**Ethnicity**
Non-Hispanic White	377
Black	17
Hispanic	34
Asian	17
Other	22
Native American	0

**Age**
From 65 to 74	257
From 75 to 84	167
85 and over	32
Less than 65	11

Conditions of Medicare patients treated by Dr. Lisa Hertz, MD in 2022

Hypertension	70
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	21
Depression	19
Chronic Kidney Disease	15
Asthma	16
Osteoperosis	27
Atrial Fibrilation	13
Heart Failure	8
Chronic Obstructive Pulmonary Disease	11
Diabetes	23
Dementia	3
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Lisa Hertz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Lisa Hertz, MD treated as a gastroenterologist in Los Alamitos, CA were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

diagnostic procedures	238
doctor visit	772
gastrointestinal procedures	272
hospital care	104
inpatient care	104
lab tests	99
liver imaging	38
minimally invasive procedures	272
preventive care	34
removal of lesion (e.g. growth)	238
ultrasound (sonogram)	38

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Lisa Hertz, MD.

**Gender**
Male	103
Female	382

**Ethnicity**
Black / African American	26
Asian / Pacific Islander	17
Non-Hispanic White	384
Native American / Alaskan Native	0
Hispanic	39
Other	5

**Age**
75 to 84	156
85 and over	41
Less than 65	20
65 to 74	263

Average of Total of Conditions of Medicare patients treated by Dr. Lisa Hertz, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Lisa Hertz, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	59
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	27
Depression	19
Chronic Kidney Disease	22
Asthma	10
Osteoporosis	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	24
Atrial Fibrillation	8
Dementia	6
Cancer	14

Education & Training

Dr. Lisa Hertz, MD graduated from Harvard Medical School in 1984. She completed residency at University of California, Los Angeles (UCLA) Affiliated Hospitals. She is certified by the both Internal Medicine and Gastroenterology and has a state license in California.

Medical School: Harvard Medical School (1984)

Residency: University of California, Los Angeles (UCLA) Affiliated Hospitals (1987)

Board Certification: both Internal Medicine and Gastroenterology

Licensed In: California

Affiliations & Hospitals

Dr. Lisa Hertz, MD is associated with these hospitals and organizations:

Long Beach Medical Center

MemorialCare

Unio Specialty Care

Miller Children s & Women s Hospital Long Beach

Ratings & Reviews

Dr. Lisa Hertz, MD has an exceptional overall rating with an average of 4.94 out of 5 stars based on 30 ratings. We collect ratings and reviews of Dr. Lisa Hertz, MD from all over the web to help you find the right in Los Alamitos, CA.

4.94

Overall Rating

(30 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
AbbVie, Inc.	$4,519 Humira $2,054	Creon $1,133	Lupron $303	Viekira $57	Moderiba $18	Other $955
AbbVie Inc.	$1,608 Creon $414	Humira $356	Skyrizi $312	Rinvoq $109	LINZESS $76	Other $340
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$1,538 XIFAXAN $1,218	Trulance $147	XIFAXANIBSD $82	Uceris $63	APRISO $15	Other $13
Salix Pharmaceuticals, Ltd	$1,081 Xifaxan 550 mg $224	Moviprep $219	Solesta $194	XIFAXAN 550 MG TABLETS $159	APRISO $81	Other $205
Valeant Pharmaceuticals North America LLC	$873 Uceris $291	XIFAXAN $239	XIFAXAN - 550 MG $132	APRISO $60	XIFAXANIBSD $59	Other $92
Other	$9,101 ENTYVIO $736	LINZESS $660	SUCRAID $571	VIBERZI $414	STELARA $390	Other $6,331

**Types of Payments**
Food and Beverage	$18,457
Education	$241
Consulting Fee	$22

Biography

Dr. Lisa Hertz is a specialist in adult gastroenterology. Dr. Hertz's average rating from her patients is 5.0 stars (out of 5). After completing medical school at Harvard Medical School, she performed her residency at a hospital affiliated with the University of California, Los Angeles (UCLA). She is professionally affiliated with Long Beach Medical Center.