Dr. William S. Ritter
- Gender: Male
- Experience: 50 years
- Graduated from: Jefferson Medical College Of Thomas Jefferson University
- Graduation year: 1971
- Sole propriator: No
- NPI: 1104825462
Dr. William S. Ritter M.D.
Internist
He is located at 9119 West 74th Street Suite 350 in Shawnee Mission, KS 66204. Can help patients with the following: Bladder Control, General Care, Headache, High Blood Pressure, Peptic Ulcer, Urinary Tract Infection (UTI). His National Provider Identifier (NPI) number is 1104825462. Appointment can be made via the phone number (913) 789-3290. He also has a website where you can get more information. The website can be found at https://www.adventhealth.com/hospital/adventhealth-shawnee-mission. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. William S. Ritter, being an internist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. William S. Ritter.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. William S. Ritter
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William S. Ritter as in-network for the following 2026 plans.
Health plans
Ambetter from Sunflower Health Plan
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 16 plans from Ambetter from Sunflower Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Elite Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Elite Gold | EPO · Gold | Preferred | Accepting new patients |
| Elite Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Everyday Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Everyday Gold | EPO · Gold | Preferred | Accepting new patients |
| Everyday Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Focused Silver | EPO · Silver | Preferred | Accepting new patients |
| Focused Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
| Standard Expanded Bronze | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Expanded Bronze + Vision + Adult Dental | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Standard Gold | EPO · Gold | Preferred | Accepting new patients |
| Standard Gold + Vision + Adult Dental | EPO · Gold | Preferred | Accepting new patients |
| Standard Silver | EPO · Silver | Preferred | Accepting new patients |
| Standard Silver + Vision + Adult Dental | EPO · Silver | Preferred | Accepting new patients |
Blue Cross and Blue Shield of Kansas City
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 6 plans from Blue Cross and Blue Shield of Kansas City
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue KC Catastrophic BlueSelect EPO | EPO · Catastrophic | Preferred | Accepting new patients |
| Blue KC Choice Bronze 2 with Spira Care BlueSelect EPO | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Blue KC Choice Silver 1 with Spira Care BlueSelect EPO | EPO · Silver | Preferred | Accepting new patients |
| Blue KC Standard Bronze BlueSelect EPO | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Blue KC Standard Gold BlueSelect EPO | EPO · Gold | Preferred | Accepting new patients |
| Blue KC Standard Silver BlueSelect EPO | EPO · Silver | Preferred | Accepting new patients |
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 6 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic 4700 | EPO · Expanded Bronze | Preferred | Accepting new patients at some locations |
| Bronze Classic Standard | EPO · Expanded Bronze | Preferred | Accepting new patients at some locations |
| Bronze Elite + PCP Saver | EPO · Expanded Bronze | Preferred | Accepting new patients at some locations |
| Bronze Simple Diabetes | EPO · Expanded Bronze | Preferred | Accepting new patients at some locations |
| Gold Classic Standard | EPO · Gold | Preferred | Accepting new patients at some locations |
| Silver Classic Standard | EPO · Silver | Preferred | Accepting new patients at some locations |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. William S. Ritter is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. William S. Ritter is enrolled to bill Medicare as a Practitioner - Cardiovascular Disease (cardiology) .
Bills through: Shawnee Mission Medical Center Inc
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| St. Jude Medical | $137 |
| Zoll Medical | $45 |
| Abiomed | $26 |
Other
| Food and Beverage | $296 |
| Other | $12 |
Studies
JEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated in 1971Other ways to reach out
- Website: https://www.adventhealth.com/hospital/adventhealth-shawnee-mission
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Questions & Answers
Has Dr. William S. Ritter affiliation with hospitals?
Dr. William S. Ritter is affiliated with SHAWNEE MISSION MEDICAL CENTER.
Does Dr. William S. Ritter accept patients with Ambetter from Sunflower Health Plan?
Yes, Dr. William S. Ritter is listed in-network for Ambetter from Sunflower Health Plan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. William S. Ritter treat?
Dr. William S. Ritter provides treatment for Bladder Control, General Care, Headache, High Blood Pressure, Peptic Ulcer, Urinary Tract Infection (UTI). For the full list see this list.
Does Dr. William S. Ritter have affiliation with practices?
Dr. William S. Ritter is affiliated with Adventhealth Shawnee Mission.
Where can you meet with Dr. William S. Ritter?
Dr. William S. Ritter's office is located at 9119 West 74th Street Suite 350 in Shawnee Mission, KS 66204.