Dr. Jennifer L. Knox, DO | O Fallon, MO | Family Medicine

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Jennifer Knox is a family medicine physician who earned her Doctor of Osteopathy degree from Kansas City University of Medicine. She completed her residency training at Mercy Family Medicine, where she developed comprehensive skills in caring for patients of all ages. Dr. Knox is board-certified in Family Medicine by the American Board of Family Medicine and provides care in English.

Dr. Knox practices at St. Luke's Tri-County Family Practice in O'Fallon, Missouri, and maintains affiliations with several respected hospitals including Mercy Hospital Saint Louis, Barnes Jewish West County Hospital, and Mercy Hospital Washington. She focuses on treating conditions such as obesity, high blood pressure, and pediatric health concerns. Her practice includes preventive services like flu vaccinations and incorporates physical therapy and strength training approaches into patient care. Patients have given Dr. Knox an average rating of 4.4 out of 5 stars.

AI-generated from data on this provider profile.

accepting new patients
4.4

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

33 ratings & reviews

Sort:

Showing 1 to 10 of 10 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

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.

February 3rd, 2019

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

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

July 7th, 2017

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

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.

October 11th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

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.

December 24th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

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

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I haven't seen this doctor yet as she will be my new PCP.However not sure if I want to now..The Office .manager has yet to return my call...Can't see the doctor cause she is on Maternity Leave and no one seems to know how to assist me...as I have serious medical conditions I will be without my meds until I see the doctor.. not happy at all

March 4th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Knox isnt that comprehensive. She was referred to me by a specialist when I was looking for a new PCP. I have many different issues and the 1st thing I asked her is if she would coordinate with different specialists with my meds, etc., after all this is the JOB of your PCP. She said she could and would do this. Upon next visit the tune had changed to no I wont. This is no help to me at all. I have to have someone that can help coordinate the selection of medications for serious diseases. The office staff is friendly and supportive.

January 15th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I have many medical issues including diabetes and high blood pressure. I am very confident in Dr. Knox. She has done wonders in getting my blood sugars under better control. It's great to find a doctor who is good at their job and friendly too!

July 20th, 2013

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr Knox is WONDERFUL.....she is a Dr who listens, ask questions and truly cares......However, she staff that manages the phone try and force you to give out childrens Social Security numbers......I did not and will not disclose this information, as a Drs office has no need for them...

April 12th, 2013

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I have seen Dr. Knox on two occasions. I really like and trust her. She is very thorough and has a great bedside manner. Overall I had a great experience at her office with a short wait time and a friendly staff, too.

August 22nd, 2012

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


Dr. Jennifer L. Knox, DO	Karina Guffey, PMHNP-BC, FNP-BC	Helix Virtual Care	Nicole Baldwin, APRN, FNP-BC
Family Medicine	Family Medicine	Family Medicine	Family Medicine
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.4 (33 Ratings)	0 (0 Ratings)	0 (0 Ratings)	3.7 (3 Ratings)
			8 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English		Speaks English
O Fallon , MO	Springfield , MO	Boca Raton , FL	Orlando , FL
Med School: Kansas City University of Medicine (Medical Education)
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Family Medicine

Check-up
Contraception
Family Planning
Immunization
Influenza
Weight Loss

BOARD CERTIFICATIONS

American Board of Family Medicine

Family Medicine

MEDICAL LICENSE

Doctor Of Osteopathy, Missouri, 2026, Expired

EDUCATION & TRAINING

Residency

Mercy Family Medicine

Medical School

Kansas City University of Medicine (Medical Education)

Dr. Anna Elizabeth Schell
Nurse Practitioner
| Washington, MO
(0)
Dr. Scott Alan Barton, DO
Hospital Medicine
26 Years Exp | Troy, MO
(3)
Dr. James Robert Lundy, MD
Hospital Medicine
28 Years Exp | Saint Louis, MO
(1)
Dr. Tina M Ryan, MD
Nurse Practitioner
| WASHINGTON, MO
(0)
Dr. Peggy A Petralia, DO
Emergency Medicine
36 Years Exp | Ellisville, MO
(0)
Dr. Robert Eric Dinenberg, MD
Public Health & General Preventive Medicine
27 Years Exp | SAN DIEGO, CA
(0)
Dr. Carter Page Fenton, DO
Emergency Medicine
30 Years Exp | Chesterfield, MO
(1)
Dr. Robert Francis Poirier, MD
Emergency Medicine
27 Years Exp | Saint Louis, MO
(0)
Dr. Deanna Lea Powelson
Nurse Practitioner
| Saint Charles, MO
(0)
Dr. David Bruce Clark, MD
Anesthesiology
30 Years Exp | St. LOUIS, MO
(0)

How can I make an appointment with Dr. Jennifer Knox?: You can find contact information for Dr. Jennifer Knox here on Vitals.
Does Dr. Jennifer Knox accept my insurance?: You can see the insurance plans that Dr. Jennifer Knox accepts on their Vitals profile.
Is Dr. Jennifer Knox accepting new patients?: Dr. Jennifer Knox is accepting new patients on Vitals. View Dr. Jennifer Knox's profile on Vitals to make an appointment.
Does Dr. Jennifer Knox accept virtual/telehealth appointments?: Dr. Jennifer Knox has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Jennifer Knox speak?: Dr. Jennifer Knox speaks English.

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.