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Dr. Terry Lidvin Simpson, MD, FACS

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Specializes in: Bariatric Surgery and General Surgery

University of Chicago, Pritzker School of Medicine

760 Las Posas Road Suite C2
Camarillo, CA 93010

(805) 620-1000

Dr. Terry Lidvin Simpson, MD, FACS is a bariatric surgeon in Camarillo, CA specializing in bariatric surgery and general surgery. He graduated from University of Chicago, Pritzker School of Medicine. Dr. Terry Lidvin Simpson, MD, FACS is affiliated with Dignity Health and St John's Regional Med Center/St John's Hospital Camarillo.

Office Locations

St John's Regional Med Center/St John's Hospital Camarillo

760 Las Posas Road Suite C2
Camarillo, CA 93010

(805) 620-1000

(805) 288-6821

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In The News (see more mentions in the news)

“"He s a bright individual, but his whole medical practice is set up for tremendous monetary gain," said Dr. Terry Simpson, a surgeon in California who also posted a video to his more than 350,000...”—"Peter Attia s Ties to Epstein Spark a Backlash From Doctors", New York Times, February 2026

“Blood in your stool can be a life-threatening emergency, and we want to address it," Dr. Terry Simpson, a board-certified general surgeon based in California, told his 1 million TikTok followers in...”—"I'm a doctor - these 5 concerning symptoms may indicate colon cancer", New York Post, October 2024

“Dr. Terry Simpson, a board-certified general surgeon based in California, is sharing the stool symptom that's cause for serious concern.”—"I'm a surgeon - you should go to the ER if you have this symptom", New York Post, August 2024

Noteworthy Medicare Patient Procedures Performed by Dr. Terry Lidvin Simpson, MD, FACS in 2023

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

Top 5%

By Volume:

chemical cautery for granulation tissue

excisional debridement

nursing home care

In 2023, Dr. Terry Lidvin Simpson, MD, FACS performed more chemical cautery for granulation tissue, excisional debridement, and nursing home care procedures for Medicare patients than 95% of providers in related specialties within California.

Top 10%

By Volume:

removal of lesion

In 2023, Dr. Terry Lidvin Simpson, MD, FACS performed more removal of lesion (e.g. growth) procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

immobilization treatment

skin lesion destruction

By Affordability:

multilayer compression bandaging

In 2012, among providers in related specialties within California, Dr. Terry Lidvin Simpson, MD, FACS performed more immobilization treatment, and skin lesion destruction (e.g. laser surgery) procedures for Medicare patients than 75% of them and he also had a list price for multilayer compression bandaging that was lower than the list prices billed to Medicare by 75% 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2012 were ultrasound (sonogram) and abdominal imaging.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

abdominal imaging	34
doctor visit	106
ultrasound (sonogram)	34

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

doctor visit	52

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2013

Hypertension	75
High Cholesterol	61
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	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

doctor visit	143

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Male	16
Female	46

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

**Age**
From 65 to 74	32
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2014

Hypertension	74
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	24
Depression	35
Chronic Kidney Disease	19
Asthma	19
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2015 were X-rays and gastrointestinal procedures.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

doctor visit	223
gastrointestinal procedures	38
X-rays	38

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Male	24
Female	118

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

**Age**
From 65 to 74	82
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2015

Hypertension	62
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	27
Depression	28
Chronic Kidney Disease	15
Asthma	18
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. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2016 were X-rays, gastrointestinal procedures, ultrasound (sonogram) and abdominal imaging.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

abdominal imaging	19
doctor visit	338
gastrointestinal procedures	108
ultrasound (sonogram)	19
X-rays	108

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Male	19
Female	77

**Ethnicity**
Non-Hispanic White	80
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	66
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2016

Hypertension	59
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	22
Depression	27
Chronic Kidney Disease	18
Asthma	22
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. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2017 were X-rays, gastrointestinal procedures, ultrasound (sonogram) and abdominal imaging.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

abdominal imaging	28
doctor visit	257
gastrointestinal procedures	50
ultrasound (sonogram)	28
X-rays	50

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Male	18
Female	68

**Ethnicity**
Non-Hispanic White	69
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	59
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2017

Hypertension	69
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	23
Depression	34
Chronic Kidney Disease	21
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

2018 Medicare Procedure Volume

The top procedures that Dr. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2018 were X-rays and gastrointestinal procedures.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

doctor visit	177
gastrointestinal procedures	56
X-rays	56

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Male	13
Female	51

**Age**
From 65 to 74	47
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2018

Hypertension	64
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	27
Depression	33
Chronic Kidney Disease	25
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

2019 Medicare Procedure Volume

The top procedures that Dr. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2019 were X-rays and gastrointestinal procedures.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

doctor visit	139
gastrointestinal procedures	66
X-rays	66

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

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

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2019

Hypertension	66
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	32
Depression	32
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

hospital care	27
inpatient care	27

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Male	22
Female	48

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

**Age**
From 65 to 74	31
From 75 to 84	0
85 and over	0
Less than 65	18

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2020

Hypertension	75
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	44
Depression	37
Chronic Kidney Disease	40
Asthma	0
Osteoperosis	0
Atrial Fibrilation	19
Heart Failure	26
Chronic Obstructive Pulmonary Disease	0
Diabetes	47
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2021 were nursing home care, minor procedures, debridement (removal of unhealthy tissue) and excision.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

compression therapy	48
debridement (removal of unhealthy tissue)	1173
excision	1173
immobilization	48
minor procedures	1315
nursing home care	1598
removal of lesion (e.g. growth)	48
skin procedures	48

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Male	205
Female	243

**Ethnicity**
Non-Hispanic White	333
Black	16
Hispanic	84
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	139
85 and over	155
Less than 65	44

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2021

Hypertension	75
High Cholesterol	65
Stroke	16
Ischemic Heart Disease	43
Depression	51
Chronic Kidney Disease	65
Asthma	11
Osteoperosis	19
Atrial Fibrilation	23
Heart Failure	44
Chronic Obstructive Pulmonary Disease	29
Diabetes	51
Dementia	50
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA during 2022 were nursing home care, minor procedures, debridement (removal of unhealthy tissue) and excision.

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

debridement (removal of unhealthy tissue)	1545
excision	1528
minor procedures	2059
nursing home care	3330
removal of lesion (e.g. growth)	221
skin procedures	221

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Male	276
Female	337

**Ethnicity**
Non-Hispanic White	445
Black	22
Hispanic	118
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	201
85 and over	237
Less than 65	43

Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS in 2022

Hypertension	75
High Cholesterol	75
Stroke	20
Ischemic Heart Disease	34
Depression	52
Chronic Kidney Disease	48
Asthma	13
Osteoperosis	21
Atrial Fibrilation	43
Heart Failure	45
Chronic Obstructive Pulmonary Disease	31
Diabetes	50
Dementia	43
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Terry Lidvin Simpson, MD, FACS for Medicare patients.

The highest averages for the top procedures that Dr. Terry Lidvin Simpson, MD, FACS treated as a bariatric surgeon in Camarillo, CA were nursing home care, minor procedures, debridement (removal of unhealthy tissue) and excision.

abdominal imaging	27
compression therapy	48
debridement (removal of unhealthy tissue)	1359
doctor visit	179
excision	1350
gastrointestinal procedures	63
hospital care	27
immobilization	48
inpatient care	27
minor procedures	1687
nursing home care	2464
removal of lesion (e.g. growth)	134
skin procedures	134
ultrasound (sonogram)	27
X-rays	63

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS.

**Gender**
Female	89
Male	53

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	1
Non-Hispanic White	104
Native American / Alaskan Native	0
Hispanic	18
Other	0

**Age**
85 and over	35
75 to 84	30
Less than 65	9
65 to 74	54

Average of Total of Conditions of Medicare patients treated by Dr. Terry Lidvin Simpson, MD, FACS From 2012 - 2022

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

Hypertension	63
High Cholesterol	52
Stroke	3
Ischemic Heart Disease	25
Depression	29
Chronic Kidney Disease	24
Asthma	7
Osteoporosis	3
Heart Failure	10
Chronic Obstructive Pulmonary Disease	5
Diabetes	35
Atrial Fibrillation	7
Dementia	8
Cancer	2

Education & Training

Dr. Terry Lidvin Simpson, MD, FACS graduated from University of Chicago, Pritzker School of Medicine. He completed residency at Virginia Mason Medical Center. He is certified by the Surgery General Surgery and has a state license in Arizona.

Medical School: University of Chicago, Pritzker School of Medicine

Residency: Virginia Mason Medical Center

Board Certification: Surgery General Surgery

Licensed In: Arizona

Affiliations & Hospitals

Dr. Terry Lidvin Simpson, MD, FACS is associated with these hospitals and organizations:

Dignity Health

St John's Regional Med Center/St John's Hospital Camarillo

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General Payments

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

**Payments by Company**
Allergan Inc.	$3,480 LAP-BAND $3,480
APOLLO ENDOSURGERY INC	$2,894 LapBand $2,128	Overstitch and or LapBand $509	Orbera $238	LapBand and or Orbera $18
Apollo Endosurgery US Inc	$1,335 LapBand $1,254	Orbera $81
Intuitive Surgical, Inc.	$488 Da Vinci Surgical System $488
Covidien LP	$320 Signia $296	Endo GIA $13	LigaSure $11
Other	$859 LINX Reflux Management System $196	Adempas $112	Signia $104	SYNECOR Biomaterial $92	NASCOBAL CYANOCOBALAMIN, USP $60	Other $294

**Types of Payments**
Consulting Fee	$4,000
Food and Beverage	$3,705
Travel and Lodging	$1,670

Research Payments

Dr. Terry Lidvin Simpson, MD, FACS has received 3 research payments totaling $1,000.

Biography

Dr. Terry Simpson is a specialist in general surgery and bariatric surgery. Dr. Simpson is affiliated with Dignity Health. His practice in Camarillo, CA is open to new patients as reported by Dignity Health. He is a graduate of the University of Chicago, Pritzker School of Medicine and a graduate of Virginia Mason Medical Center's residency program.