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William O'nan, MD

Dr. O'nan is a gynecologist in the Henderson area. He is affiliated with Deaconess Gateway Hospital and 4 more hospitals.
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Conditions treated

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

Top 25%
9 doctors
Top 15%
9 doctors
Top 5%
4 doctors
Dr. O'nan saw pregnancy patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
66 doctors
Top 15%
66 doctors
Top 5%
33 doctors
Dr. O'nan saw pain patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
2 doctors
Top 15%
2 doctors
Top 5%
Dr. O'nan saw metabolic syndrome patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
21 doctors
Top 15%
20 doctors
Top 5%
10 doctors
Dr. O'nan saw migraine patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
2 doctors
Top 15%
2 doctors
Top 5%
1 doctor
Dr. O'nan saw urinary urge incontinence patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
5 doctors
Top 15%
6 doctors
Top 5%
2 doctors
Dr. O'nan saw more irregular periods patients than 85% of similar doctors in the Evansville area in 2014–2018. Learn more.

Related services provided

Top 25%
5 doctors
Top 15%
5 doctors
Top 5%
2 doctors
Dr. O'nan saw interstitial cystitis patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
5 doctors
Top 15%
5 doctors
Top 5%
2 doctors
Dr. O'nan saw cystitis patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
14 doctors
Top 15%
14 doctors
Top 5%
6 doctors
Dr. O'nan saw osteoporosis patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
21 doctors
Top 15%
21 doctors
Top 5%
10 doctors
Dr. O'nan saw more hormonal imbalance patients than 85% of similar doctors in the Evansville area in 2014–2018. Learn more.
Top 25%
35 doctors
Top 15%
36 doctors
Top 5%
17 doctors
Dr. O'nan saw major depression patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
36 doctors
Top 15%
35 doctors
Top 5%
17 doctors
Dr. O'nan saw hypothyroidism patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
13 doctors
Top 15%
13 doctors
Top 5%
6 doctors
Dr. O'nan saw more urinary incontinence patients than 85% of similar doctors in the Evansville area in 2014–2018. Learn more.

Related services provided

Top 25%
41 doctors
Top 15%
41 doctors
Top 5%
20 doctors
Dr. O'nan saw back pain patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
10 doctors
Top 15%
9 doctors
Top 5%
4 doctors
Dr. O'nan saw more menopause patients than 85% of similar doctors in the Evansville area in 2014–2018. Learn more.

Related services provided

Top 25%
37 doctors
Top 15%
38 doctors
Top 5%
18 doctors
Dr. O'nan saw urinary tract infection (UTI) patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
41 doctors
Top 15%
40 doctors
Top 5%
20 doctors
Dr. O'nan saw thyroid condition patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
5 doctors
Top 15%
6 doctors
Top 5%
2 doctors
Dr. O'nan saw more menstrual cramps patients than 75% of similar doctors in the Evansville area in 2014–2018. Learn more.

Related services provided

Top 25%
3 doctors
Top 15%
3 doctors
Top 5%
1 doctor
Dr. O'nan saw endometriosis patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
58 doctors
Top 15%
58 doctors
Top 5%
28 doctors
Dr. O'nan saw digestive tract conditions patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
59 doctors
Top 15%
58 doctors
Top 5%
29 doctors
Dr. O'nan saw diabetes patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
44 doctors
Top 15%
44 doctors
Top 5%
21 doctors
Dr. O'nan saw anxiety patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
43 doctors
Top 15%
42 doctors
Top 5%
21 doctors
Dr. O'nan saw anemia patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

Top 25%
3 doctors
Top 15%
4 doctors
Top 5%
1 doctor
Dr. O'nan saw stress incontinence patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
4 doctors
Top 15%
4 doctors
Top 5%
1 doctor
Dr. O'nan saw vaginal prolapse patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
10 doctors
Top 15%
10 doctors
Top 5%
4 doctors
Dr. O'nan saw carcinoma patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
12 doctors
Top 15%
11 doctors
Top 5%
5 doctors
Dr. O'nan saw more vaginitis patients than 75% of similar doctors in the Evansville area in 2014–2018. Learn more.
Top 25%
4 doctors
Top 15%
4 doctors
Top 5%
2 doctors
Dr. O'nan saw yeast infection patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
24 doctors
Top 15%
24 doctors
Top 5%
12 doctors
Dr. O'nan saw sexually transmitted infection (STI) patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.
Top 25%
4 doctors
Top 15%
4 doctors
Top 5%
1 doctor
Dr. O'nan saw gestational diabetes patients in 2014–2018, but we couldn’t determine whether he was a top doctor for the condition in the Evansville area. Learn more.

Related services provided

C-section rate

Dr. O'nan’s C-section rate is similar to the rate we predicted for his mix of cases and patients.
44%
C-section rate
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. O'nan’s C-section rate compares to a typical pregnancy doctor:

  1. We first measure the actual C-section rate for the pregnant patients Dr. O'nan 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. O'nan’s.

By comparing these two numbers, you can see whether Dr. O'nan’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.

Locations

Dr. O'nan sees patients and can be reached at the following locations.

Office
319 8th St
Henderson, KY 42420
798 miles away
Center for Women's Health
800 Hospital Dr
Madisonville, KY 42431
806 miles away

Reviews

Credentials
  • University of Kentucky College of Medicine
    MEDICAL EDUCATION, 1973

Hospital affiliations

Dr. O'nan is able to admit and treat patients at the following hospitals.

  • Deaconess Gateway Hospital
    A
    Hospital safety grade (Fall 2018)
  • Deaconess Hospital
    A
    Hospital safety grade (Fall 2018)
  • Methodist Hospital
    D
    Hospital safety grade (Fall 2018)
  • Methodist Hospital Union County
    Hospital safety grade not available
  • The Women's Hospital
    Hospital safety grade not available

Insurance accepted

Always check coverage with your doctor’s office.

  • Aetna
  • Anthem
  • Arkansas Blue Cross and Blue Shield
  • Assurant Health
  • Baptist Health Plan
  • 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
  • CareFirst BlueCross BlueShield
  • Cigna
  • CoreSource
  • Coventry Health Care
  • Cross and Blue Shield of North Carolina
  • HealthSCOPE Benefits
  • HealthSmart
  • Highmark Blue Cross Blue Shield
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • Independence Blue Cross AmeriHealth
  • Medicare
  • Meritain Health
  • Premera Blue Cross
  • Regence Blue Cross Blue Shield
  • Southeastern Indiana Health Organization
  • TRICARE
  • United Healthcare
  • Wellmark Blue Cross and Blue Shield