Dr. Stephen K. Williamson
- Gender: Male
- Experience: 42 years
- Graduated from: University Of Kansas School Of Med (kc/wich/sal)
- Graduation year: 1979
- Sole propriator: No
- NPI: 1598859183
Dr. Stephen K. Williamson M.D.
Oncologist
He is located at 2330 Shawnee Mission Parkway in Westwood, KS 66205. Can help patients with the following: Glioma, Hot Flashes, Liver Cancer, Obesity, Osteoporosis, Retinoblastoma. His National Provider Identifier (NPI) number is 1598859183. Appointment can be made via the phone number (913) 588-7750. He is affiliated with 2 practices and 1 hospitals.
Conditions treated
Dr. Stephen K. Williamson, being an oncologist, 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. Stephen K. Williamson.
- Abdominal Pain
- Acute Pain
- Anal Cancer
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Basal Cell Carcinoma
- Bile Duct Cancer
- Bladder Cancer
- Bladder Control
- Bone Cancer
- Brain Cancer
- Breast Cancer
- Cancer
- Carcinoid Tumor
- Carcinoma
- Cervical Cancer
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Colon Cancer
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Esophageal Cancer
- Fever
- Gallbladder Cancer
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Glioma
- Head and Neck Cancer
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hodgkin's Disease
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Kidney Cancer
- Larynx Cancer
- Leukemia
- Liver Cancer
- Lung Cancer
- Melanoma
- Mesothelioma
- Migraine
- Nasopharyngeal Cancer
- Nausea and Vomiting
- Neoplasm
- Neuroblastoma
- Non-Hodgkin's Lymphoma (NHL)
- Obesity
- Oral Cancer
- Osteoporosis
- Ovarian Cancer
- Pancreatic Cancer
- Penis Cancer
- Peptic Ulcer
- Pheochromocytoma (PCC)
- Polycythemia
- Prescription Refill
- Prostate Cancer
- Retinoblastoma
- Salivary Gland Cancer
- Sarcoma
- Skin Cancer
- Stomach Cancer
- Testicular Cancer
- Thymoma
- Thyroid Cancer
- Urethral Cancer
- Urethritis
- Urinary Tract Infection (UTI)
- Uterine Cancer
- Vaginal Cancer
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Stephen K. Williamson as in-network for the following 2026 plans.
Health plans
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 |
| Bronze Classic Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Diabetes | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic Standard | EPO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard | EPO · Silver | Preferred | Accepting new patients |
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. Stephen K. Williamson 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. Stephen K. Williamson is enrolled to bill Medicare as a Practitioner - Medical Oncology (also registered under: Practitioner - Internal Medicine) .
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Regeneron | $99 |
| Exelixis | $87 |
| Pfizer | $20 |
Other
| Food and Beverage | $208 |
Studies
UNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated in 1979Additional Specialities
- Internist
Looking for more Oncologists?
There are 9 other oncologists in this region.
- Gender: Male
- Address: 2330 Shawnee Mission Parkway Westwood, 66205, KS
- Gender: Female
- Address: 2330 Shawnee Mission Parkway Westwood, 66205, KS
- Gender: Female
- Address: 2650 Shawnee Mission Parkway Westwood, 66205, KS
- Gender: Female
- Address: 2330 Shawnee Mission Parkway Westwood, 66205, KS
- Gender: Female
- Address: 2650 Shawnee Mission Parkway Westwood, 66205, KS
- Gender: Male
- Address: 2330 Shawnee Mission Parkway Westwood, 66205, KS
- Gender: Female
- Address: 2330 Shawnee Mission Parkway Westwood, 66205, KS
- Gender: Female
- Address: 2330 Shawnee Mission Parkway Westwood, 66205, KS
- Gender: Female
- Address: 2330 Shawnee Mission Parkway Westwood, 66205, KS
Questions & Answers
Where can you meet with Dr. Stephen K. Williamson?
Dr. Stephen K. Williamson's office is located at 2330 Shawnee Mission Parkway in Westwood, KS 66205.
Has Dr. Stephen K. Williamson affiliation with hospitals?
Dr. Stephen K. Williamson is affiliated with UNIVERSITY OF KANSAS HOSPITAL.
Does Dr. Stephen K. Williamson accept patients with Oscar Insurance Company?
Yes, Dr. Stephen K. Williamson is listed in-network for Oscar Insurance Company through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Does Dr. Stephen K. Williamson have affiliation with practices?
Dr. Stephen K. Williamson is affiliated with Ku Dental Associates. For the full list of practices see this list.
What conditions does Dr. Stephen K. Williamson treat?
Dr. Stephen K. Williamson provides treatment for Glioma, Hot Flashes, Liver Cancer, Obesity, Osteoporosis, Retinoblastoma. For the full list see this list.