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Home > CA Providers > Colorectal Surgeons

Dr. Anita Kay Gregory, MD

Accepting New Patients

(4 Ratings)

Specializes in: Colon & Rectal Surgery

St. Louis University School of Medicine (1990)

Professional interests include: diverticular disease, colectomy (colon resection), colorectal cancer, and more.

363 South Main Street Suite 420
Orange, CA 92868

(714) 734-3113

Dr. Anita Kay Gregory, MD is a colon and rectal surgeon in Orange, CA specializing in colon & rectal surgery. She graduated from St. Louis University School of Medicine in 1990 and has 35 years of experience. Dr. Anita Kay Gregory, MD is affiliated with Providence Medical Foundation and Providence Affiliated Physicians, St. Joseph.

Office Locations

Address:

1010 West La Veta Avenue Suite 470
Orange, CA 92868

Address:

363 South Main Street Suite 420
Orange, CA 92868

Some issues Dr. Anita Kay Gregory, MD can help you with:

Colectomy (Colon Resection)

Colectomy is surgery to remove all or part of the colon, or the longest part of the large intestine. The colon may be affected by diseases such as cancer or inflammatory bowel disease. In a colectomy, all or part of the colon that is infected, blocked, or cancerous is removed.

A colectomy may be performed by laparoscopic or open surgery. A laparoscopic colectomy requires several small cuts on the abdomen, and uses a thin tube with a camera, called a laparoscope. Laparoscopic colectomies are less invasive than open procedures. For some individuals, a laparoscopic colectomy may not be possible, and instead an open colectomy is performed. In an open colectomy, a large incision is made on the abdomen. Open colectomies typically require longer recovery periods.

After the incisions are made, a portion of the colon is removed, and the remaining ends of the colon are attached to each other in a procedure called anastomosis. Waste can continue to travel through the body as normal. However, in some situations, it may be necessary for the end of the colon to be attached to an opening in the abdomen, called a stoma. This procedure is called an ostomy. Types of ostomies include:

Colostomy, in which the remaining portion of the colon is attached to the abdominal opening.
Ileostomy, in which the small intestine is attached to the abdominal opening.

An ostomy bag will be attached to the skin to collect waste. If the entire colon is removed, either an ileostomy is performed, or the small intestine is connected to the anus and waste may pass through as normal.

Stomas may be permanent or temporary. If the stoma is temporary, the ends of the colon will be rejoined in a later procedure. Temporary stomas are generally used to allow time for the colon to heal following surgery.

A colectomy may take between one and four hours. Following the procedure, patients will need to consume a liquid and low fiber diet before gradually returning to their normal diet. Patients will need to stay in the hospital for three to seven days for monitoring. Full recovery and return to normal activity may take anywhere from a few weeks to several months.

Colonoscopy

Colonoscopy is the use of a special tool called a colonoscope (a thin, flexible tube with a camera on the end) to examine the inside of the colon and rectum. The tube is typically inserted anally, and it allows the physician to examine the large intestine from the inside. It may be done at any time to diagnose bowel problems, but routine colonoscopies are advised after the age of 50 to screen for colon cancer.

A colonoscopy may be performed to diagnose:

Intestinal ulcers
Polyps
Bowel cancer
An unidentified source of pain or bleeding in the intestine

Patients may be asked to drink only liquids in the days before a colonoscopy, or they may be given an enema to remove residual fecal matter. Before the exam, patients are given medication to help them relax, and then lay on their side on a table. The scope is inserted into the anus and gently moved all the way through the large intestine. Air may be pumped into the intestine to improve the view for the physician. Any polyps that are found will be removed. Then the colonoscope will be withdrawn. A colonoscopy is not usually painful, but patients may feel some bloating or have some cramps right afterward. If patients have polyps removed, they might experience a small amount of bleeding. Any side effects should go away within a few hours.

Robotic Surgery

Robotic surgery is a type of minimally invasive surgery, using a tiny opening to get inside the body instead of making a large cut. It uses small tools attached to a thin robotic arm, which is controlled by the surgeon. Robotic surgery may be referred to by the specific kind of robot that is used. The most advanced robot currently in use is called the da Vinci, and surgery using it is sometimes called da Vinci surgery.

There are many benefits to robotic surgery, both for the patient and the surgeon. Robotic surgery allows for more precise movements and increased control during very delicate surgical procedures. This makes performing surgery accurately much easier for surgeons and reduces fatigue. The smaller 'hand' of the robot can enter the body via a much smaller opening, which reduces the risk of infection and scarring and leads to a faster recovery. The robotic hands also contain tiny moveable cameras among their tools, giving surgeons a much closer view of the procedure than would be possible with traditional surgery.

In The News

“Inside were pictures of Kim, his wife, June, and their three children, including Richard, a neurosurgeon, and his fiancee, Dr. Anita Gregory, a plastic surgeon.”—"Racial Conflict Brutalizes L.A. Politics", Los Angeles Times, May 2024

“Honorary Chairwoman Dr. Anita Gregory, St. Joseph Hospital colon and rectal surgeon, spoke about the hospital's new cancer center, due to open in July 2008.”—"Cancer survivors are models of hope", The Orange County Register, June 2007

diagnostic procedures	10
doctor visit	203
gastrointestinal procedures	49
minimally invasive procedures	49
pelvic surgery	16
preventive care	43
reconstructive surgery	16
removal of lesion (e.g. growth)	10

**Gender**
Male	40
Female	162

**Ethnicity**
Non-Hispanic White	161
Black	0
Hispanic	16
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	58
85 and over	17
Less than 65	22

Hypertension	66
High Cholesterol	59
Stroke	6
Ischemic Heart Disease	30
Depression	16
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	15
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	24
Dementia	6
Cancer	22

diagnostic procedures	13
doctor visit	236
gastrointestinal procedures	41
hospital care	11
inpatient care	11
minimally invasive procedures	41
preventive care	32
removal of lesion (e.g. growth)	13

**Gender**
Male	49
Female	172

**Ethnicity**
Non-Hispanic White	182
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	67
85 and over	18
Less than 65	19

Hypertension	59
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	28
Depression	20
Chronic Kidney Disease	19
Asthma	9
Osteoperosis	12
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	20
Dementia	5
Cancer	24

**Gender**
Male	110
Female	310

**Ethnicity**
Non-Hispanic White	328
Black	0
Hispanic	38
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	216
From 75 to 84	136
85 and over	38
Less than 65	30

Hypertension	64
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	24
Asthma	13
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	12
Diabetes	28
Dementia	7
Cancer	24

doctor visit	267
gastrointestinal procedures	37
minimally invasive procedures	37
preventive care	43

**Gender**
Male	45
Female	167

**Ethnicity**
Non-Hispanic White	177
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	56
85 and over	23
Less than 65	13

Hypertension	57
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	26
Depression	16
Chronic Kidney Disease	22
Asthma	15
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	23
Dementia	8
Cancer	24

diagnostic procedures	11
doctor visit	347
gastrointestinal procedures	43
minimally invasive procedures	43
preventive care	36
removal of lesion (e.g. growth)	11

**Gender**
Male	80
Female	206

**Ethnicity**
Non-Hispanic White	231
Black	0
Hispanic	24
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	141
From 75 to 84	99
85 and over	27
Less than 65	19

Hypertension	67
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	26
Depression	20
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	12
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	15
Diabetes	28
Dementia	4
Cancer	27

**Gender**
Male	77
Female	164

**Ethnicity**
Non-Hispanic White	198
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	75
85 and over	30
Less than 65	15

Hypertension	71
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	35
Asthma	10
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	24
Dementia	5
Cancer	31

diagnostic procedures	30
doctor visit	212
gastrointestinal procedures	79
minimally invasive procedures	79
preventive care	23
removal of lesion (e.g. growth)	30

**Gender**
Male	67
Female	148

**Ethnicity**
Non-Hispanic White	174
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	83
85 and over	16
Less than 65	13

Hypertension	59
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	26
Depression	26
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	7
Diabetes	23
Dementia	6
Cancer	30

diagnostic procedures	27
doctor visit	177
gastrointestinal procedures	77
minimally invasive procedures	77
preventive care	24
removal of lesion (e.g. growth)	27

**Gender**
Male	57
Female	127

**Ethnicity**
Non-Hispanic White	151
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	65
85 and over	0
Less than 65	0

Hypertension	63
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	34
Depression	20
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	12
Chronic Obstructive Pulmonary Disease	14
Diabetes	24
Dementia	9
Cancer	30

diagnostic procedures	32
doctor visit	255
gastrointestinal procedures	139
minimally invasive procedures	139
preventive care	64
removal of lesion (e.g. growth)	32

Average Medicare Procedure Volume From 2013 - 2021

Volume of procedures performed by Dr. Anita Kay Gregory, MD for Medicare patients.

The highest averages for the top procedures that Dr. Anita Kay Gregory, MD treated as a colon and rectal surgeon in Orange, CA were minimally invasive procedures, gastrointestinal procedures, preventive care and removal of lesion (e.g. growth).

abdominal surgery	11
diagnostic procedures	20
doctor visit	237
gastrointestinal procedures	70
hospital care	11
inpatient care	11
minimally invasive procedures	70
pelvic surgery	13
preventive care	38
reconstructive surgery	13
removal of lesion (e.g. growth)	20

Average Medicare Patient Data From 2013 - 2021

Information about Medicare patients treated by Dr. Anita Kay Gregory, MD.

**Gender**
Female	145
Male	52

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	3
Non-Hispanic White	160
Native American / Alaskan Native	0
Hispanic	17
Other	0

**Age**
85 and over	16
75 to 84	63
Less than 65	13
65 to 74	100

Average of Total of Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD From 2013 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Anita Kay Gregory, MD treated were hypertension, high cholesterol, ischemic heart disease and cancer.

Hypertension	50
High Cholesterol	44
Stroke	1
Ischemic Heart Disease	23
Depression	16
Chronic Kidney Disease	20
Asthma	8
Osteoporosis	10
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	19
Atrial Fibrillation	8
Dementia	5
Cancer	21

Education & Training

Dr. Anita Kay Gregory, MD graduated from St. Louis University School of Medicine in 1990. She completed residency at St. Luke's-Roosevelt Hospital Center. She is certified by the American Board of Surgery, Surgery and has a state license in California.

Medical School: St. Louis University School of Medicine (1990)

Residency: St. Luke's-Roosevelt Hospital Center

Board Certification: American Board of Surgery, Surgery

Licensed In: California

Affiliations & Hospitals

Dr. Anita Kay Gregory, MD is associated with these hospitals and organizations:

Providence Medical Foundation

Providence Affiliated Physicians, St. Joseph

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. Anita Kay Gregory, MD appears to accept the following insurance providers: Cigna, Anthem Blue Cross HMO, Aetna HMO, Blue Shield of California, United Healthcare HMO, Anthem, Medicare Advantage, Providence, Health Net HMO, CIGNA HMO, Oscar EPO and Insurance Plan.

Insurance Accepted by Provider includes:

According to our sources, Dr. Anita Kay Gregory, MD accepts the following insurance providers:

Cigna

Anthem Blue Cross HMO

Aetna HMO

Blue Shield of California

United Healthcare HMO

Anthem

Medicare Advantage

Providence

Health Net HMO

CIGNA HMO

Oscar EPO

Insurance Plan

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Ratings & Reviews

Dr. Anita Kay Gregory, MD has a good overall rating with an average of 3.0 out of 5 stars based on 4 ratings. We collect ratings and reviews of Dr. Anita Kay Gregory, MD from all over the web to help you find the right in Orange, CA.

Overall Rating

(4 Ratings)

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General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$7,090 Da Vinci Surgical System $7,090
Aesculap, Inc.	$907 Surgical Technologies $631	Caiman Vessel Sealers $212	EinsteinVision $26	No Marketed Product Name $20	NO APPLICABLE MARKETED PRODUCT NAME $18
Ethicon US, LLC	$551 Energy: Harmonic $440	ECHELON FLEX Stapler $80	ENSEAL Product Family $20	Sutures $11
Convatec Inc.	$151 SUR-FIT NATURA $115	AQUACEL AG $23	EAKIN $13
NUVASIVE, INC.	$132 Integrated Operative Solutions $132
Other	$403 LigaSure $62	Sacral Nerve Stimulation - Neuro $58	CLARIX $44	XARELTO $37	Phasix Mesh $33	Other $170

**Types of Payments**
Education	$4,000
Food and Beverage	$2,671
Travel and Lodging	$2,564

Biography

Dr. Anita Gregory's specialty is colon & rectal surgery. Areas of expertise for Dr. Gregory include rectocele (posterior prolapse), genital warts, and vaginal prolapse. Patient ratings for Dr. Gregory average 3.0 stars (out of 5). She usually honors United Healthcare HMO, Anthem, and Blue California, in addition to other insurance carriers. She graduated from St. Louis University School of Medicine and then she performed her residency at St. Luke's-Roosevelt Hospital Center. Dr. Gregory is professionally affiliated with Providence Medical Foundation. She welcomes new patients at her office inOrange, CA as reported by Providence Medical Foundation.

Select Year:

Dr. Anita Kay Gregory, MD

Office Locations

Some issues Dr. Anita Kay Gregory, MD can help you with:

In The News

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Average Medicare Procedure Volume From 2013 - 2021

Average Medicare Patient Data From 2013 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. Anita Kay Gregory, MD From 2013 - 2021

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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