Jennifer L. Knox, DO | O Fallon, MO | Family Physician

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Dr. Jennifer Knox treats chronic kidney disease and cognitive impairment in O'Fallon, Missouri. She also performs COVID-19 testing and is affiliated with Mercy Hospital Saint Louis, Kindred Hospital Saint Louis South, Barnes Jewish West County Hospital, and Mercy Hospital Washington.

Board-certified in family medicine by the American Board of Family Medicine, Dr. Knox earned her degree from Kansas City University of Medicine and completed her residency at Mercy Family Medicine. Patients on Vitals rate Dr. Knox 4.47 out of 5.

Overview based on verified provider data

accepting new patients
4.5

38 Ratings
speaks English
Mercy Family Medicine
15 written reviews
1 specialty
6 areas of expertise
1 board certification
4 hospital affiliations
1 office location
Female

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

Based on patient feedback. Read the reviews

Jennifer L. Knox's Ratings and Reviews

4.5

38 Ratings with 15 written Reviews

Average Wait Time 9 Minutes

How was your appointment with
Jennifer Knox?

Patients’ Perspective

Gave an accurate diagnosis: (16) Did WellNeeds Improvement (0)
Had a good bedside manner: (16) Did WellNeeds Improvement (0)
Spent time with me: (16) Did WellNeeds Improvement (0)
Provided follow-up after the visit: (16) Did WellNeeds Improvement (0)
Flexible scheduling: (16) Did WellNeeds Improvement (0)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

38 ratings & reviews

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Showing 1 to 10 of 15 reviews

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I provided my input directly to Jennifer Knox at the end of our time together; I was most pleased with how she had assumed my care.

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

July 22nd, 2026 | Source: Partner

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Dr. Knox is an excellent physician.

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

May 20th, 2026 | Source: Partner

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Great experience

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

December 15th, 2025 | Source: Partner

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I felt rushed. There was more I wanted to discuss but felt like I had to pick one concern.

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

October 27th, 2025 | Source: Partner

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Dr. Knox is very caring and knowledgeable. I am so glad I have her!?

Did Well

Needs Improvement

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

September 29th, 2025 | Source: Partner

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Dr. Knox is very patient and caring. She listens attentively to your problems, gives you a very thorough examination, and discusses treatment plan options with you . Her staff is friendly and both Dr. Knox and her staff will call you back in a timely manner.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

February 3rd, 2019

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Dr. Knox is always warm and friendly but very serious about your health.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

July 7th, 2017

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Dr. Knox is a very caring individual. I mentioned I needed to be referred to a Gynecologist for my well woman exam and I also mentioned I was not looking forward to seeing another new doctor. Dr. Knox told me she could do the well woman exam and if the results were questionable I would have to go to a Gyno. I was soooo happy.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

October 11th, 2016

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I've had to change insurance carriers a lot and that means changing doctors a lot. Once I found Dr. Knox I knew that I never want to change doctors again. I'll change insurance carriers before I change doctors again. She is wonderful. And excellent at her job.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

December 24th, 2015

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Dr. Knox is a great doctors. I have met her once. She is thorough. Takes care and have various suggestions and is very friendly.

September 1st, 2015

St. Luke's Tri-County Family Practice - WingHaven

5551 Winghaven Blvd Ste 142O Fallon, MO 63368

Tel: (636) 695-2510

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 2:00 pm

SatClosed

SunClosed


Jennifer L. Knox, DO	Nicole Baldwin, APRN, FNP-BC	Dr. Michael Gray, MD	Dr. Alaina Ann Studt, MD
Family Medicine	Family Medicine	Family Medicine	Family Medicine
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.5 (38 Ratings)	4.2 (5 Ratings)	4.2 (6 Ratings)	0 (0 Ratings)
	8 Years of Experience	31 Years of Experience	1 Year of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	No Virtual Visit Option
Speaks English	Speaks English	Speaks English	Speaks English
O Fallon , MO	Orlando , FL	Annapolis , MD	Frontenac , MO
Med School: Kansas City University of Medicine (Medical Education)		Med School: University Of Maryland School Of Medicine	Med School: University of Missouri
Current Profile	View Profile	View Profile	View Profile

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Family Medicine

Check-up
Contraception
Family Planning
Immunization
Influenza
Weight Loss

Jennifer L. Knox holds an expired medical license in the state of Missouri. They are board certified in Family Medicine by the American Board of Family Medicine.

Board Certifications

Board certified in Family Medicine by the American Board of Family Medicine.

Medical License

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

Education & Training

Residency

Completed their residency at Mercy Family Medicine.

Medical School

Graduated from Kansas City University of Medicine (Medical Education).

NPI Number

Jennifer L. Knox's NPI number is 1184822801.

Erica N Reeg, NP
Nurse Practitioner
6 Years Exp | Saint Louis, MO
(0)
Goodluck Chibuike Okereke
Nurse Practitioner
| Weldon Spring, MO
(0)
Aaron Joel Carbutt
Nurse Practitioner
| Iraan, TX
(0)
Gerald Carson Power JR.
Nurse Practitioner
| Fenton, MO
(0)
Dr. Robert Vernon Snyders SR.
Other
71 Years Exp | Wildwood, MO
(0)
Tod A West JR.
Nurse Practitioner
| Saint Louis, MO
(0)
Kimbereley R Coleman
Nurse Practitioner
| Warrenton, MO
(0)
Lauren Clement
Nurse Practitioner
| Wentzville, MO
(0)
Mary Nancy Vanaman
Nurse Practitioner
| Manchester, MO
(0)
Donna Carol Holt-Costain
Nurse Practitioner
| Saint Peters, MO
(0)

Where is Jennifer Knox's office located?: Jennifer Knox's office is located at 5551 Winghaven Blvd Ste 142, O Fallon, MO, 63368.
Is Jennifer Knox accepting new patients?: Jennifer Knox is accepting new patients on Vitals. View Jennifer Knox's profile on Vitals to make an appointment.
Does Jennifer Knox accept virtual/telehealth appointments?: Jennifer Knox 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 Jennifer Knox?: You can find contact information for Jennifer Knox here on Vitals.
Does Jennifer Knox accept my insurance?: You can see the insurance plans that Jennifer Knox accepts on their Vitals profile.

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