Summary

Dr. William Knapp is a family medicine physician who also specializes in geriatric medicine, bringing nearly five decades of medical experience to his practice. He earned his medical degree from A T Still University Kirksville College of Osteopathic Medicine and has dedicated 48 years to caring for patients across all age groups, with particular expertise in caring for older adults. Dr. Knapp speaks English and focuses on comprehensive healthcare that addresses the unique needs of families and seniors.

Dr. Knapp practices at multiple locations in Saint Peters and Florissant, Missouri, and maintains affiliations with Barnes Jewish Saint Peters Hospital and SSM Health DePaul Hospital. His clinical expertise includes managing chronic kidney disease and various stages of kidney disease progression. He incorporates physical therapy approaches, strength training, and manual therapy into patient care to support overall health and mobility. Patients have given Dr. Knapp an average rating of 4.2 out of 5 stars on Vitals.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.2
  • 48 years of experience
  • speaks English
  • A T Still University Kirksville College Of Osteopathic Medicine
  • 5 written reviews
  • 2 specialties
  • 12 areas of expertise
  • 3 hospital affiliations
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. William Stephen Knapp has 4 locations

Esse Health

4800 Mexico Rd Ste 102Saint Peters, MO 63376
Mon8:30 am - 4:30 pm
Tue8:30 am - 4:30 pm
Wed8:30 am - 4:30 pm
Thu8:30 am - 4:30 pm
Fri8:30 am - 3:00 pm
SatClosed
SunClosed

Esse Health

2137 CHARBONIER RD STE BFLORISSANT, MO 63031
Mon8:30 am - 4:30 pm
Tue8:30 am - 4:30 pm
Wed8:30 am - 4:30 pm
Thu8:30 am - 4:30 pm
Fri8:30 am - 3:00 pm
SatClosed
SunClosed

Ssm Health Depaul Hospital

12303 De Paul DrBridgeton, MO 63044

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Dr. William Stephen Knapp, DONicole Baldwin, APRN, FNP-BCHelix Virtual CareKarina Guffey, PMHNP-BC, FNP-BC
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
3.7 
48 Years of Experience 8 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English
Saint Peters , MOOrlando , FLBoca Raton , FLSpringfield , MO
Med School: A T Still University Kirksville College Of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. William Stephen Knapp

  • Accepts Medicare

Medical Specialties

Dr. William Stephen Knapp has the following 2 specialties

Specialty Expertise

Dr. William Stephen Knapp has the following 12 areas of expertise

  • Alzheimer's Disease
  • Cognitive Issues/Testing
  • Confusion
  • Dementia
  • Diabetes
  • EOL Care
  • Geriatric Medicine
  • Osteopenia
  • Osteoporosis
  • Senility
  • Urinary Incontinence
  • Weight Loss

Certifications, License, & Education

48 Years Experience

Dr. William Stephen Knapp holds an expired medical license in the state of Missouri.

Medical License

Doctor Of Osteopathy with an expired medical license in the state of Missouri that expired in 2026.

Education & Training

Medical School

Graduated from A T Still University Kirksville College Of Osteopathic Medicine in 1978.

NPI Number

Dr. Knapp's NPI number is 1023099140.

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Frequently Asked Questions

Does Dr. William Knapp accept my insurance?
You can see the insurance plans that Dr. William Knapp accepts on their Vitals profile.
Is Dr. William Knapp accepting new patients?
Dr. William Knapp is accepting new patients on Vitals. View Dr. William Knapp's profile on Vitals to make an appointment.
Which hospitals is Dr. William Knapp affiliated with?
Dr. William Knapp is affiliated with Barnes Jewish Saint Peters Hospital, Ssm Health Depaul Hospital, and Barnes Jewish Saint Peters Hospital.
Does Dr. William Knapp accept virtual/telehealth appointments?
Dr. William Knapp has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. William Knapp?
You can find contact information for Dr. William Knapp here on Vitals.

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