of
GK

Gerald Katz, MD

Dr. Katz is a gynecologist in the Walnut Creek area. He is affiliated with John Muir Medical Center-Walnut Creek Campus.
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Conditions treated

Tap to see related services for each condition and more details about our calculations.

Top 25%
6.2k doctors
Top 15%
6.2k doctors
Top 5%
3.1k doctors
Dr. Katz saw more pregnancy patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
6.5k doctors
Top 15%
6.5k doctors
Top 5%
3.3k doctors
Dr. Katz saw more menopause patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
4.8k doctors
Top 15%
4.8k doctors
Top 5%
2.4k doctors
Dr. Katz saw more irregular periods patients than 95% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
474 doctors
Top 15%
474 doctors
Top 5%
236 doctors
Dr. Katz saw HPV patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
6.5k doctors
Top 15%
6.5k doctors
Top 5%
3.2k doctors
Dr. Katz saw goiter patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
8.8k doctors
Top 15%
8.8k doctors
Top 5%
4.4k doctors
Dr. Katz saw more vaginitis patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
1.3k doctors
Top 15%
1.3k doctors
Top 5%
639 doctors
Dr. Katz saw more genital warts patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
7.0k doctors
Top 15%
7.0k doctors
Top 5%
3.5k doctors
Dr. Katz saw warts patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
16k doctors
Top 15%
16k doctors
Top 5%
8.2k doctors
Dr. Katz saw more sexually transmitted infection (STI) patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
2.9k doctors
Top 15%
2.9k doctors
Top 5%
1.5k doctors
Dr. Katz saw cold sores patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
40k doctors
Top 15%
40k doctors
Top 5%
20k doctors
Dr. Katz saw pain patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
7.6k doctors
Top 15%
7.6k doctors
Top 5%
3.8k doctors
Dr. Katz saw more bacterial vaginosis (BV) patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
1.1k doctors
Top 15%
1.1k doctors
Top 5%
547 doctors
Dr. Katz saw breast cyst patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
2.3k doctors
Top 15%
2.3k doctors
Top 5%
1.2k doctors
Dr. Katz saw more bleeding after menopause patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
4.4k doctors
Top 15%
4.4k doctors
Top 5%
2.2k doctors
Dr. Katz saw more yeast infection patients than 75% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
3.8k doctors
Top 15%
3.8k doctors
Top 5%
1.9k doctors
Dr. Katz saw more fibroids patients than 75% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
4.2k doctors
Top 15%
4.2k doctors
Top 5%
2.1k doctors
Dr. Katz saw more ovarian cyst patients than 85% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
816 doctors
Top 15%
815 doctors
Top 5%
407 doctors
Dr. Katz saw scleroderma patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
23k doctors
Top 15%
23k doctors
Top 5%
11k doctors
Dr. Katz saw asthma patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
22k doctors
Top 15%
22k doctors
Top 5%
11k doctors
Dr. Katz saw thyroid condition patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
2.4k doctors
Top 15%
2.4k doctors
Top 5%
1.2k doctors
Dr. Katz saw more gestational diabetes patients than 75% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
6.6k doctors
Top 15%
6.6k doctors
Top 5%
3.3k doctors
Dr. Katz saw more herpes patients than 75% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
34k doctors
Top 15%
34k doctors
Top 5%
17k doctors
Dr. Katz saw diabetes patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
4.1k doctors
Top 15%
4.1k doctors
Top 5%
2.1k doctors
Dr. Katz saw more menstrual cramps patients than 75% of similar doctors nationwide in 2014–2019. Learn more.

Related services provided

Top 25%
12k doctors
Top 15%
12k doctors
Top 5%
6.1k doctors
Dr. Katz saw migraine patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.
Top 25%
35k doctors
Top 15%
35k doctors
Top 5%
17k doctors
Dr. Katz saw digestive tract conditions patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
19k doctors
Top 15%
19k doctors
Top 5%
9.5k doctors
Dr. Katz saw hypothyroidism patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
1.3k doctors
Top 15%
1.3k doctors
Top 5%
628 doctors
Dr. Katz saw fibrocystic breast patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
1.3k doctors
Top 15%
1.3k doctors
Top 5%
635 doctors
Dr. Katz saw morning sickness patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

Top 25%
23k doctors
Top 15%
23k doctors
Top 5%
12k doctors
Dr. Katz saw anxiety patients in 2014–2019, but we couldn’t determine whether he was a top doctor for the condition nationwide. Learn more.

Related services provided

C-section rate

Dr. Katz’s C-section rate is lower than the rate we predicted for his mix of cases and patients.
Dr. Katz 35%
Predicted for his patients 43%
Decision factor

Compared to predicted rates calculated for each doctor’s unique mix of cases and patients

  • Lower than our predicted rate
  • Higher than our predicted rate
  • Similar to our predicted rate

To help you understand how Dr. Katz’s C-section rate compares to a typical pregnancy doctor:

  1. We first measure the actual C-section rate for the pregnant patients Dr. Katz treats.
  2. We then analyze the typical practices of all other doctors in the United States who deliver babies, using a data-driven model to predict the C-section rate for patients like Dr. Katz’s.

By comparing these two numbers, you can see whether Dr. Katz’s C-section rate is lower than, similar to, or higher than predicted.

This prediction adjusts based on the types of patients the doctor sees, so a doctor who treats sicker patients may have a different predicted rate than a doctor who treats healthier patients.

Same-day biopsy rate

Dr. Katz’s same-day biopsy rate is similar to the rate we predicted for his mix of cases and patients.
45%
same-day biopsy rate

As a patient, you may prefer a doctor who has a higher rate of same-day biopsy following mammogram, because early diagnosis of conditions detected by biopsy is important for effective treatment.

Decision factor

Compared to predicted rates calculated for each doctor’s unique mix of cases and patients

  • Lower than our predicted rate
  • Higher than our predicted rate
  • Similar to our predicted rate

When a breast tissue biopsy is indicated following a suspicious finding on mammogram, our data indicates that about a third of all biopsies occur on the same day. As a patient, you may prefer a doctor who has a higher rate of same-day biopsy following mammogram, because early diagnosis of conditions detected by biopsy is important for effective treatment.

To help you understand how Dr. Katz’s rate of same-day biopsy for mammogram compares to a typical doctor who performs mammograms:

  1. We first measure the actual same-day biopsy rate for Dr. Katz’s patients whose mammograms included a suspicious finding that merited a biopsy.
  2. We then analyze the typical practices of all other doctors in the United States who perform mammograms, using a data-driven model to predict the rate of same-day biopsy for patients like Dr. Katz’s.

By comparing these two numbers, you can see whether Dr. Katz’s rate of same-day biopsy is lower than, similar to, or higher than predicted.

This prediction adjusts based on the types of patients the doctor sees, so a doctor who treats sicker patients may have a different predicted rate than a doctor who treats healthier patients.

Locations

Dr. Katz sees patients and can be reached at the following locations.

Family and Urgent Care of Walnut Creek
112 La Casa Via
Walnut Creek, CA 94598
2,577 miles away
Muir Orthopedic Specialists-Brentwood
350 John Muir Pkwy
Brentwood, CA 94513
2,561 miles away

Reviews

Credentials
  • Chicago Medical School at Rosalin Franklin University of Medicine & Science
    MEDICAL EDUCATION, 1989

Specializations

    1. Allopathic & Osteopathic Physicians
    2. Obstetrics & Gynecology

Hospital affiliations

Dr. Katz is able to admit and treat patients at the following hospitals.

  • John Muir Medical Center-Walnut Creek Campus
    A
    Hospital safety grade (Fall 2019)

Insurance accepted

Always check coverage with your doctor’s office.

  • Aetna
  • Anthem
  • Arkansas Blue Cross and Blue Shield
  • Assurant Health
  • AvMed
  • Blue Cross Blue Shield of Arizona
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • Blue Cross and Blue Shield of Alabama
  • Blue Cross and Blue Shield of Florida
  • Blue Cross and Blue Shield of Illinois
  • Blue Cross and Blue Shield of Kansas
  • Blue Cross and Blue Shield of Kansas City
  • Blue Cross and Blue Shield of Louisiana
  • Blue Cross and Blue Shield of Minnesota
  • Blue Cross and Blue Shield of Mississippi
  • Blue Cross and Blue Shield of Montana
  • Blue Cross and Blue Shield of Nebraska
  • Blue Cross and Blue Shield of New Mexico
  • Blue Cross and Blue Shield of North Dakota
  • Blue Cross and Blue Shield of Oklahoma
  • Blue Cross and Blue Shield of Rhode Island
  • Blue Cross and Blue Shield of Texas
  • Blue Cross and Blue Shield of Vermont
  • Blue Cross and Blue Shield of Wyoming
  • Blue Cross of Idaho
  • Blue Shield of California
  • BlueCross BlueShield of South Carolina
  • BlueCross BlueShield of Tennessee
  • Capital District Physicians Health Plan
  • CareFirst BlueCross BlueShield
  • Chinese Community Health Plan
  • Cigna
  • CommunityCare
  • CoreSource
  • Coventry Health Care
  • Cross and Blue Shield of North Carolina
  • EmblemHealth
  • First Choice Health
  • FrontPath Health Coalition
  • Group Health Cooperative
  • Group Health Cooperative of South Central Wisconsin
  • Harvard Pilgrim Health Care
  • Hawaii Medical Assurance Association
  • Hawaii Medical Service Association
  • Health Net
  • HealthCare Partners
  • HealthNow New York
  • HealthPartners
  • HealthSCOPE Benefits
  • HealthSmart
  • Heritage Provider Network
  • Highmark Blue Cross Blue Shield
  • Hill Physicians
  • Hometown Health
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • Independence Blue Cross AmeriHealth
  • MVP Health Care
  • Magellan Health
  • MagnaCare
  • Mayo Clinic Health Solutions
  • MedCost
  • Medica
  • Medical Mutual of Ohio
  • Medicare
  • Meritain Health
  • Moda Health
  • MultiPlan
  • PacificSource
  • Pomco
  • PreferredOne
  • Premera Blue Cross
  • Presbyterian Health Plan
  • Priority Health
  • Providence Health Plan
  • Regence Blue Cross Blue Shield
  • SynerMed
  • TRICARE
  • The Health Plan
  • Tufts Health Plan
  • UPMC Health Plan
  • United Healthcare
  • Viva Health
  • Wellmark Blue Cross and Blue Shield