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Dr. Louis Clayton Simpson JR., MD

(1 Rating)

Specializes in: Psychiatry

3756 Santa Rosalia Drive
Los Angeles, CA 90008

(323) 299-1262

Dr. Louis Clayton Simpson JR., MD is a psychiatrist in Los Angeles, CA specializing in psychiatry.

Office Locations

3756 Santa Rosalia Drive
Los Angeles, CA 90008

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In The News (see more mentions in the news)

“Shootings involving teen-agers will not be reduced until something is done about the proliferation of violence in the media, said Dr. Louis Simpson, a psychiatrist who counsels inner-city gang...”—"Easy Access to Guns Fuels Epidemic of Youth Violence : Firearms: L.A. teen-agers, seeking protection or status, steal weapons from home or buy them easily on the streets.", Los Angeles Times, April 2025

“Louis Simpson, a psychiatrist at Martin Luther King Jr./Drew Medical Center who treats teen-agers, said the trials and the riots have not brought peace to Los Angeles, but rather have deepened its...”—"COLUMN ONE : Weary L.A. Looks to Its Future : The last three years changed the city forever, residents say. Some see hope, but others are wary. 'I don't think it will ever be over," one woman says. 'A Pandora's box has been opened.'", Los Angeles Times, January 2025

“Dr. Louis Simpson, a psychiatrist, agreed.”—"Code of Silence Allows Guns on Campus : Schools: When a student has a weapon, classmates often know. But they may keep quiet because of peer pressure, fear of retaliation and alienation from adults.", Los Angeles Times, December 2024

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2012 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

mental health therapy	126

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2013 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

mental health therapy	291

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Gender**
Male	12
Female	32

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	23

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2013

Hypertension	59
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	30
Depression	57
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	34
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2014 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

mental health therapy	322

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Gender**
Male	15
Female	35

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	25

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2014

Hypertension	54
High Cholesterol	24
Stroke	0
Ischemic Heart Disease	34
Depression	54
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	36
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2015 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

mental health therapy	92

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Gender**
Male	24
Female	40

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

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2015

Hypertension	66
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	47
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	34
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2016 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

mental health therapy	283

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Gender**
Male	16
Female	24

**Age**
From 65 to 74	17
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2016

Hypertension	73
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	35
Depression	53
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	33
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2017 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

mental health therapy	254

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Gender**
Male	17
Female	28

**Age**
From 65 to 74	19
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2017

Hypertension	69
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	27
Depression	56
Chronic Kidney Disease	38
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2018 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

mental health therapy	212

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Gender**
Male	11
Female	20

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	16

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2018

Hypertension	52
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	0
Depression	42
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2019 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

mental health therapy	219

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Age**
From 65 to 74	13
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2019

Hypertension	61
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	39
Depression	39
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA during 2020 were mental health therapy.

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

doctor visit	91
mental health therapy	714

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Age**
From 65 to 74	0
From 75 to 84	0
85 and over	0
Less than 65	13

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2020

Hypertension	63
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	46
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

doctor visit	82

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2021

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

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

doctor visit	95

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2022

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

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Louis Clayton Simpson JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Louis Clayton Simpson JR., MD treated as a psychiatrist in Los Angeles, CA were mental health therapy.

doctor visit	89
mental health therapy	279

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Louis Clayton Simpson JR., MD.

**Gender**
Male	8
Female	16

**Age**
75 to 84	0
85 and over	0
Less than 65	10
65 to 74	4

Average of Total of Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Louis Clayton Simpson JR., MD treated were hypertension, depression, high cholesterol and diabetes.

Hypertension	58
High Cholesterol	20
Stroke	0
Ischemic Heart Disease	15
Depression	35
Chronic Kidney Disease	3
Asthma	0
Osteoporosis	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Atrial Fibrillation	0
Dementia	0
Cancer	0

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

Dr. Louis Clayton Simpson JR., 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. Louis Clayton Simpson JR., MD from all over the web to help you find the right in Los Angeles, CA.

Overall Rating

(1 Rating)

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General Payments

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

**Payments by Company**
Janssen Pharmaceuticals, Inc	$292 INVEGA SUSTENNA $277	INVEGA TRINZA $15
Otsuka America Pharmaceutical, Inc.	$120 ABILIFY MAINTENA $120
Neurocrine Biosciences, Inc.	$21 INGREZZA $21
Allergan Inc.	$12 VRAYLAR $12

**Types of Payments**
Food and Beverage	$444

Biography

Dr. Louis Simpson is a Los Angeles, CA physician who specializes in psychiatry. Dr. Simpson obtained a license to practice in California.

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Dr. Louis Clayton Simpson JR., MD

Office Locations

Therapy on Your Terms

In The News (see more mentions in the news)

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Louis Clayton Simpson JR., MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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