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Home > CA Providers > Obstetricians & Gynecologists: OB-GYNs

Dr. Gerald Frank Katz, MD

Accepting New Patients

(7 Ratings)

Specializes in: Obstetrics & Gynecology

Rosalind Franklin University of Medicine and Science, Chicago Medical School

1450 Treat Boulevard Suite 320
Walnut Creek, CA 94597

(925) 296-9880

Dr. Gerald Frank Katz, MD is an obstetrician and gynecologist in Walnut Creek, CA specializing in obstetrics & gynecology. He graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School. Dr. Gerald Frank Katz, MD is affiliated with Astrana Health, Brown and Toland Physicians, John Muir Health, Central Valley Medical Group, Hill Physicians, BASS MEDICAL GROUP, John Muir Medical Center - Walnut Creek and Bay Area Care Partners.

Office Locations

Central Valley Medical Group

112 La Casa Viaduct Suite 200
Walnut Creek, CA 94598

(925) 935-3359

open_in_new

John Muir Health

1450 Treat Boulevard Suite 320
Walnut Creek, CA 94597

(925) 296-9880

(925) 296-9011

open_in_new

350 John Muir Parkway Suite 205
Brentwood, CA 94513

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Gerald Frank Katz, MD in 2023

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

Top 10%

By Volume:

cancer screening

In 2023, Dr. Gerald Frank Katz, MD performed more cancer screening procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

By Affordability:

fecal occult blood test

screening fecal occult blood test

screening stool guaiac test

stool guaiac test

stool tests

In 2013, among providers in related specialties within California, Dr. Gerald Frank Katz, MD performed more breast exam, Pap screening, pelvic exam, and preventive care procedures for Medicare patients than 75% of them and he also had a list price for fecal occult blood test (FOBT), screening fecal occult blood test (FOBT), screening stool guaiac test (gFOBT), stool guaiac test (gFOBT), and stool tests 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

2013 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2013 were preventive care, lab tests, cytology and gynecologic pathology.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	94
cytology	119
diagnostic procedures	14
doctor visit	234
gynecologic pathology	119
gynecologic procedures	108
lab tests	168
pelvic imaging	33
placement of vaginal support device	16
preventive care	243
ultrasound (sonogram)	33
women's imaging	33

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	282

**Ethnicity**
Non-Hispanic White	242
Black	0
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	162
From 75 to 84	74
85 and over	20
Less than 65	26

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2013

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2013 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	48
High Cholesterol	49
Stroke	0
Ischemic Heart Disease	17
Depression	14
Chronic Kidney Disease	11
Asthma	8
Osteoperosis	12
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	15
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2014 were preventive care, lab tests, gynecologic procedures and breast exam.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	98
cytology	91
diagnostic procedures	17
doctor visit	331
gynecologic pathology	91
gynecologic procedures	115
lab tests	170
pelvic imaging	24
preventive care	244
ultrasound (sonogram)	24
women's imaging	24

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	312

**Ethnicity**
Non-Hispanic White	268
Black	13
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	192
From 75 to 84	60
85 and over	20
Less than 65	40

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2014

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2014 were high cholesterol, hypertension, ischemic heart disease and osteoperosis.

Hypertension	46
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	17
Depression	15
Chronic Kidney Disease	12
Asthma	7
Osteoperosis	16
Atrial Fibrilation	5
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	14
Dementia	0
Cancer	7

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2015 were preventive care, lab tests, gynecologic procedures and breast exam.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	66
cytology	65
diagnostic procedures	15
doctor visit	291
gynecologic pathology	65
gynecologic procedures	81
lab tests	151
pelvic imaging	21
preventive care	187
ultrasound (sonogram)	21
women's imaging	21

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	528

**Ethnicity**
Non-Hispanic White	456
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	306
From 75 to 84	130
85 and over	46
Less than 65	46

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2015

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2015 were high cholesterol, hypertension, depression and ischemic heart disease.

Hypertension	49
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	16
Depression	18
Chronic Kidney Disease	10
Asthma	13
Osteoperosis	16
Atrial Fibrilation	6
Heart Failure	6
Chronic Obstructive Pulmonary Disease	7
Diabetes	14
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2016 were preventive care, lab tests, cytology and gynecologic pathology.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	44
cytology	63
doctor visit	259
gynecologic pathology	63
gynecologic procedures	44
lab tests	110
pelvic imaging	12
preventive care	173
ultrasound (sonogram)	12
women's imaging	12

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	231

**Ethnicity**
Non-Hispanic White	192
Black	0
Hispanic	11
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	135
From 75 to 84	54
85 and over	23
Less than 65	19

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2016

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2016 were high cholesterol, hypertension, depression and ischemic heart disease.

Hypertension	47
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	16
Depression	19
Chronic Kidney Disease	13
Asthma	11
Osteoperosis	13
Atrial Fibrilation	10
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	13
Dementia	5
Cancer	8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2017 were preventive care, lab tests, cytology and gynecologic pathology.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	88
cytology	110
doctor visit	242
gynecologic pathology	110
gynecologic procedures	88
lab tests	133
pelvic imaging	13
preventive care	243
ultrasound (sonogram)	13
women's imaging	13

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	239

**Ethnicity**
Non-Hispanic White	197
Black	0
Hispanic	12
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	64
85 and over	20
Less than 65	19

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2017

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2017 were hypertension, high cholesterol, depression and osteoperosis.

Hypertension	43
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	14
Depression	18
Chronic Kidney Disease	15
Asthma	10
Osteoperosis	16
Atrial Fibrilation	6
Heart Failure	6
Chronic Obstructive Pulmonary Disease	5
Diabetes	14
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2018 were preventive care, lab tests, breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	75
cytology	74
doctor visit	213
gynecologic pathology	74
gynecologic procedures	75
lab tests	111
preventive care	170

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	204

**Ethnicity**
Non-Hispanic White	169
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	112
From 75 to 84	59
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2018

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2018 were high cholesterol, hypertension, osteoperosis and diabetes.

Hypertension	48
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	16
Depression	13
Chronic Kidney Disease	15
Asthma	9
Osteoperosis	18
Atrial Fibrilation	9
Heart Failure	8
Chronic Obstructive Pulmonary Disease	6
Diabetes	16
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2019 were preventive care, gynecologic procedures, breast exam and lab tests.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	93
cytology	85
diagnostic procedures	16
doctor visit	195
gynecologic pathology	85
gynecologic procedures	109
lab tests	91
pelvic imaging	12
preventive care	176
ultrasound (sonogram)	12
women's imaging	12

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	207

**Ethnicity**
Non-Hispanic White	164
Black	0
Hispanic	14
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	109
From 75 to 84	63
85 and over	18
Less than 65	17

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2019

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2019 were high cholesterol, hypertension, depression and chronic kidney disease.

Hypertension	48
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	14
Depression	21
Chronic Kidney Disease	18
Asthma	7
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	6
Diabetes	16
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2020 were preventive care, breast exam, gynecologic procedures and cytology.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	54
cytology	53
doctor visit	128
gynecologic pathology	53
gynecologic procedures	54
lab tests	35
pelvic imaging	13
preventive care	88
ultrasound (sonogram)	13
women's imaging	13

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	148

**Ethnicity**
Non-Hispanic White	121
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	76
From 75 to 84	48
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2020

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2020 were high cholesterol, hypertension, chronic kidney disease and depression.

Hypertension	49
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	13
Depression	20
Chronic Kidney Disease	24
Asthma	0
Osteoperosis	17
Atrial Fibrilation	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2021 were preventive care, gynecologic procedures, breast exam and cytology.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	61
cytology	59
diagnostic procedures	16
doctor visit	106
gynecologic pathology	59
gynecologic procedures	77
lab tests	47
pelvic imaging	13
preventive care	106
ultrasound (sonogram)	13
women's imaging	13

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	123

**Ethnicity**
Non-Hispanic White	102
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	58
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2021

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2021 were high cholesterol, hypertension, osteoperosis and chronic kidney disease.

Hypertension	50
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	20
Depression	20
Chronic Kidney Disease	20
Asthma	13
Osteoperosis	22
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	11
Diabetes	15
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2022 were preventive care, breast exam, gynecologic procedures and cytology.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	59
cytology	55
doctor visit	110
gynecologic pathology	55
gynecologic procedures	59
lab tests	46
preventive care	101

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	126

**Ethnicity**
Non-Hispanic White	108
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	60
From 75 to 84	45
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2022

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2022 were high cholesterol, hypertension, osteoperosis and depression.

Hypertension	56
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	11
Depression	19
Chronic Kidney Disease	13
Asthma	18
Osteoperosis	31
Atrial Fibrilation	9
Heart Failure	0
Chronic Obstructive Pulmonary Disease	10
Diabetes	18
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA during 2023 were preventive care, lab tests, breast exam and gynecologic procedures.

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

breast exam	68
cytology	63
doctor visit	119
gynecologic pathology	63
gynecologic procedures	68
lab tests	72
preventive care	118

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Male	0
Female	146

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

**Age**
From 65 to 74	65
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD in 2023

The most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated during 2023 were high cholesterol, hypertension, osteoperosis and depression.

Hypertension	54
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	14
Depression	21
Chronic Kidney Disease	12
Asthma	9
Osteoperosis	33
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	0
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. Gerald Frank Katz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gerald Frank Katz, MD treated as an obstetrician and gynecologist in Walnut Creek, CA were preventive care, lab tests, gynecologic procedures and cytology.

breast exam	72
cytology	76
diagnostic procedures	15
doctor visit	202
gynecologic pathology	76
gynecologic procedures	79
lab tests	103
pelvic imaging	17
preventive care	168
ultrasound (sonogram)	17
women's imaging	17

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. Gerald Frank Katz, MD.

**Gender**
Female	231
Male	0

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	2
Non-Hispanic White	194
Hispanic	9
Native American / Alaskan Native	0
Other	1

**Age**
85 and over	13
75 to 84	63
Less than 65	15
65 to 74	128

Average of Total of Conditions of Medicare patients treated by Dr. Gerald Frank Katz, MD From 2013 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Gerald Frank Katz, MD treated were high cholesterol, hypertension, depression and osteoperosis.

Hypertension	48
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	15
Depression	18
Chronic Kidney Disease	14
Asthma	9
Osteoporosis	18
Heart Failure	6
Chronic Obstructive Pulmonary Disease	5
Diabetes	15
Atrial Fibrillation	6
Cancer	9
Dementia	1

Education & Training

Dr. Gerald Frank Katz, MD graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School. He completed residency at Arizona Health Sciences Center. He is certified by the Certification: MEDICAL BOARD OF CALIFORNIA and has a state license in California.

Medical School: Rosalind Franklin University of Medicine and Science, Chicago Medical School

Residency: Arizona Health Sciences Center

Board Certification: Certification: MEDICAL BOARD OF CALIFORNIA

Licensed In: California

Affiliations & Hospitals

Dr. Gerald Frank Katz, MD is associated with these hospitals and organizations:

Astrana Health

Brown and Toland Physicians

John Muir Health

Central Valley Medical Group

Hill Physicians

BASS MEDICAL GROUP

John Muir Medical Center - Walnut Creek

Bay Area Care Partners

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. Gerald Frank Katz, MD appears to accept the following insurance providers: Cigna, Aetna, Blue Shield of California, Anthem, UnitedHealthcare, Health Net, Humana, Hill Physicians Care Solutions, Central Health Plan, CCHP Health Plan (Chinese Community Health Plan) and Canopy Health.

Insurance Accepted by Provider includes:

According to our sources, Dr. Gerald Frank Katz, MD accepts the following insurance providers:

Cigna

Aetna

Blue Shield of California

Anthem

UnitedHealthcare

Health Net

Humana

Hill Physicians Care Solutions

Central Health Plan

CCHP Health Plan (Chinese Community Health Plan)

Canopy Health

Ratings & Reviews

Dr. Gerald Frank Katz, MD has a high overall rating with an average of 3.86 out of 5 stars based on 7 ratings. We collect ratings and reviews of Dr. Gerald Frank Katz, MD from all over the web to help you find the right in Walnut Creek, CA.

3.86

Overall Rating

(7 Ratings)

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General Payments

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

**Payments by Company**
Pfizer Inc.	$654 ESTRING $165	PVC $110	COLOGUARD $94	NURTEC ODT $88	MYFEMBREE $67	Other $130
AbbVie, Inc.	$499 Orilissa $190	Lupron $184	$125
AbbVie Inc.	$444 Liletta $156	LO LOESTRIN FE $123	Orilissa $121	ORIAHNN $45
Merck Sharp & Dohme Corporation	$411 NEXPLANON $214	GARDASIL9 $122	NUVARING $41	GARDASIL 9 $34
HOLOGIC INC	$264 Novasure Myosure $163	THINPREP $44	NovaSure $36	APTIMA HPV $21
Other	$2,742 BRISDELLE $267	Makena $146	ESTRACE CREAM $120	Cervical Cancer Screening $120	Osphena $113	Other $1,977

**Types of Payments**
Food and Beverage	$4,693
Education	$250
Gift	$73

Biography

Dr. Gerald Katz's area of specialization is obstetrics & gynecology. He is a graduate of Rosalind Franklin University of Medicine and Science, Chicago Medical School and the University of Chicago, Pritzker School of Medicine and a graduate of Arizona Health Sciences Center's residency program. Patients rated him highly, giving him an average of 4.0 stars (out of 5). Dr. Katz can take several insurance carriers, including Blue Shield, Health Net, and Anthem. Dr. Katz is conversant in Spanish. His professional affiliations include Astrana Health, Brown and Toland Physicians, and Hill Physicians. He has an open panel in Walnut Creek, CA according to John Muir Health.