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Dr. Derek Rainwater, MD

Dr. Derek Rainwater, MD


accepting new patients

Offers Telehealth

Willis-Knighton Physician Network


WK Swan Lake Diabetes and Endocrinology

5341 Airline Drive
Suite 100
Bossier City , LA 71111

View hours
8:00am - 5:00pm
8:00am - 5:00pm
8:00am - 5:00pm
8:00am - 5:00pm
8:00am - 5:00pm
WK Swan Lake Diabetes and Endocrinology

About Me

Derek Rainwater, MD, is your hometown endocrinologist and diabetes specialist. His practice, WK Swan Lake Diabetes Endocrinology, is conveniently located in north Bossier. You will be welcomed with open arms as Dr. Rainwater and his staff work with you to achieve your personal health goals in a way that fits your lifestyle and priorities. Dr. Rainwater treats a wide range of endocrine disorders in adults, including diabetes, thyroid disorders, pituitary diseases, adrenal issues, and testosterone issues.

A Bossier City native, Dr. Rainwater earned his Bachelor of Science degree in biology at Centenary College of Louisiana before attending LSU Health Shreveport’s School of Medicine where he received his MD. He remained at LSU Health Shreveport for an internal medicine residency, followed by a fellowship in diabetes, endocrinology and metabolism. Dr. Rainwater is board certified in internal medicine (American Board of Internal Medicine).

Dr. Rainwater lives here in the community with his wife, Sarah, and their children, Wesley and Meredith. At home, Dr. Rainwater likes to spend time with his family. They love to cook together, work in the garden and spend time outside.

If you’re struggling to control your diabetes or another endocrine problem, Dr. Rainwater is committed to providing a personalized experience for every patient he sees. He prioritizes your thoughts and concerns as he works to develop a treatment plan that fits you. Each person is different, and at Dr. Rainwater’s office you won’t be treated like a number in a lab report. Dr. Rainwater’s promise is that every patient will leave his office with a better understanding of their health, a treatment plan that fits their lifestyle, and the confidence of having a supportive healthcare team that treats every patient like family.


LSUHSC Shreveport School of Medicine

LSUHSC Shreveport School of Medicine

LSUHSC Shreveport School of Medicine

Medical School:
LSU Health Shreveport

Board Certifications

Internal Medicine, American Board of Internal Medicine

Insurances Accepted

  • AARP Medicare Supplemental Plans
  • Aetna
  • Aetna Better Health of Louisiana
  • Aetna Coventry Advantra Louisiana
  • Aetna Coventry Medicare Dual Preferred
  • Aetna Medicare Freedom PPO
  • Amerihealth Caritas Louisiana
  • Beech Street (Multiplan)
  • Blue Cross/Blue Shield - PPO Preferred Care
  • Blue Cross/Blue Shield Federal Employees
  • Blue Cross/Blue Shield of Louisiana - HMO Louisiana
  • Blue Cross/Blue Shield of Louisiana - Medicare Advantage
  • Blue Cross/Blue Shield OGB
  • Cigna HealthCare
  • Coventry Health Care (Aetna)
  • First Health
  • GEHA (Government Employees Health Association)
  • Gilsbar
  • Health Plus of Louisiana
  • Healthy Blue
  • Humana
  • Humana Choice PPO
  • IMA of Louisiana
  • Louisiana Healthcare Connections
  • Louisiana Medicaid
  • Louisiana Medicaid CHIP
  • Medicare Railroad
  • Medicare Traditional Part B
  • Multiplan
  • Mutual of Omaha Supplemental Plans
  • Novasys Health
  • Peoples Health
  • PHCS (Private Healthcare Systems / Multiplan)
  • PPO Plus
  • Tricare for Life
  • Tricare Prime
  • Tricare Select / Standard
  • UMR (United Healthcare)
  • United Healthcare
  • United Healthcare Community - Medicaid
  • United Healthcare Community Plan Dual Complete
  • Vantage Health Plans – Commercial & Medicare Advantage
  • Workers Compensation
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Conditions Treated

  • Diabetes (Type 1)
  • Diabetes (Type 2)
  • Diabetic Ketoacidosis (DKA)
  • Gestational Diabetes
  • Goiter
  • Graves' Disease
  • Hashimoto's Disease (Hashimoto Thyroiditis)
  • Hyperglycemia and Diabetes
  • Hyperthyroidism
  • Hypoglycemia
  • Hypoglycemia and Diabetes
  • Hypothyroidism
  • Male Infertility
  • Overweight and Obesity
  • Pituitary Tumor
  • Prediabetes
  • Secondary Diabetes
  • Thyroid Cancer
  • Thyroid Nodule
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Procedures Performed

  • Continuous Glucose Monitoring
  • Insulin Pump Therapy
  • Testosterone Replacement Therapy (TRT)
  • Thyroid Ultrasound