Browse specialties
Chiropractors
Dentists
Dermatologists
Ear, Nose & Throat Doctors
Endocrinologists
Eye Doctors
OBGYNs
Ophthalmologists
Optometrists
Orthopedic Surgeons
Podiatrists
Primary Care Doctors
Psychiatrists
Psychologists
Therapist-Counselors
See all specialties A-Z
Zocdoc
HomeAbout usPressCareersHelp
Contact
service@zocdoc.com855-962-3621
Discover
The Paper Gown: Stories for and about patientsThe Script: Insights for doctorsCommunity StandardsData and privacyVerified reviewsTech BlogNew
Are you a top doctor or health service?
Try Zo, your AI Phone AssistantList your practice on ZocdocLearn about Zocdoc for Health SystemsBecome an EHR partner
Insurance Carriers
Top Specialties
Welcome to Zocdoc!
Book local doctors who take your insurance
Sign up
For providers
Grow your practice
For patients
Zocdoc
HomeAbout usPressCareersHelp
Contact
service@zocdoc.com855-962-3621
Discover
The Paper Gown: Stories for and about patientsThe Script: Insights for doctorsCommunity StandardsData and privacyVerified reviewsTech BlogNew
Are you a top doctor or health service?
Try Zo, your AI Phone AssistantList your practice on ZocdocLearn about Zocdoc for Health SystemsBecome an EHR partner
Insurance Carriers
Top Specialties
HelpList your practice on Zocdoc
Sign up

Find an in-network doctor from over 1,000 insurance plans

Add your insurance to see in-network doctors
insurance link for 300
insurance link for 307
insurance link for 323
insurance link for 356
insurance link for 324
See all (1,000+)
17 verified providers in your area
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
All providers
Availability last updated 04/09/2026
Availability last updated 04/09/2026

Shauna Sanderson, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·39 reviews
Incredible experience I will definitely keep her as my own G.I. doctor ? - Mar 18, 2026 by Javed M.Click to read more
Centertown, TN
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Shauna Sanderson sees patients virtually with Oshi Health. After you select your appointment time on Zocdoc, you’ll receive an email with instructions to complete your Oshi account and intake form. You must complete those steps in order to have your virtual visit. Shauna Sanderson is a nurse pract...Click to read more
Next available: Tue, Apr 14

Ashley Anderson, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·32 reviews
Dr. Anderson was very polite, knowledgeable and such a big help. I appreciated her for explaining things and answering all of my questions. I’ve searched for help with my condition and I have a feeling she will help me. - Mar 25, 2026 by Kiara D.Click to read more
Centertown, TN
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Ashley Anderson, a board-certified family nurse practitioner, brings over 20 years of experience to Oshi Health. She aims to provide compassionate care that improves symptoms and elevates patient quality of life. Before joining Oshi, Ashley spent 17 years in a private outpatient gastroenterology a...Click to read more
Next available: Wed, Apr 15

Dr. Monika Bhalla, MD

Internist (Virtual)
Centertown, TN
Accepting new patients · Offers video visits · Expertise in chronic diabetes + 2 more

Dr. Gregory Duhon, MD

Internist (Virtual)
5.00
·2 reviews
Dr. Duhon was a consummate professional who took the time to answer all my questions and explain his prognosis in terminology I could understand. His empathy and knowledge made me feel comfortable and confident in his care. I would highly recommend him to anyone seeking competent medical care! by KKClick to read more
Centertown, TN
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
Notice: I am currently unable to accept health insurance at this time. All visits are out of pocket. Dr. Gregory Duhon, MD, is an Internal Medicine Physician and Hospitalist with acumen in ICU, emergency room, and crisis/pandemic management. After earning his Bachelor of Science in Biology from ...Click to read more

Robbie Leinart, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·30 reviews
Centertown, TN
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Offers video visits · Highly recommended · Expertise in chronic indigestion without clear cause ·
Read bio
Robbie Leinart sees patients virtually with Oshi Health. After you select your appointment time on Zocdoc, you’ll receive an email with instructions to complete your Oshi account and intake form. You must complete those steps in order to have your virtual visit. Robbie Leinart is an Adult Health N...Click to read more

Ashley Cornette, RN, APRN

Family Nurse Practitioner (Virtual)
Centertown, TN
Accepting new patients · Offers video visits ·
Read bio
Ashley is a Nurse Practitioner based in Tennessee with a passion for delivering inclusive, patient-centered care. She provides hormone optimization therapy for both transgender and cisgender patients while also practicing in the primary care space. Ashley is committed to improving access to affirmin...Click to read more

Dr. William Ince, MD

Family Physician (Virtual)
5.00
·14 reviews
Dr. Ryan Ince is hands down one of the best physicians I’ve worked with. His virtual telemedicine practice is incredibly convenient, but what really sets him apart is how comprehensive and personalized his care is. He takes the time to review everything in detail — labs, medications, lifestyle facto...Click to read more
Centertown, TN
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time ·
Read bio
VirtuHealthMD is a fully virtual medical practice founded by Dr. William Ryan Ince, a board-certified Family Medicine physician who is also board-certified in Lifestyle Medicine and a Certified Functional Medicine Practitioner (CFMP). The practice focuses on preventive care, longevity strategy, meta...Click to read more

Jan Seiler, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.97
·32 reviews
- Apr 9, 2026 by Andrew H.Click to read more
Centertown, TN
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time · Expertise in acute stomach inflammation/infection + 1 more ·
Read bio
Jan Seiler has worked as a gastroenterology nurse practitioner for over two decades. At Oshi Health, she takes a whole-person approach to gastrointestinal (GI) care, making sure to take the time to listen to patient needs and concerns. Before working at Oshi, she worked in a large brick-and-mortar...Click to read more

Dr. Yaw Otchere Boateng, MD

Internist (Virtual)
4.25
·12 reviews
Dr. Yaw was amazing, and ?? can not wait to keep working with him ?? from this point, forward! - Apr 1, 2025 by Kay S.Click to read more
Centertown, TN
Accepting new patients · 25+ years of experience · Offers video visits · Excellent wait time ·
Read bio
American Board of Internal Medicine Certified with over 26 years' experience in outpatient care, hospital medicine, and addiction care. I have experience managing addiction overdoses in the hospital setting and addressing some mental health issues. I provide a low-cost, out-of-pocket Telemedicine Po...Click to read more
Next available: today

Dr. Satasuk Joy Bhosai, MD

Internist (Virtual)
Centertown, TN
Accepting new patients · Offers video visits ·
Read bio
Former Chief of Digital Health and Strategy and Assistant Professor of Medicine at Duke, Associate Director of Innovations in Health (a collaboration founded by McKinsey & Co, Duke, and the World Economic Forum), and founder of a health tech group that developed tools used in operating rooms and ICU...Click to read more

Amanda Sellers, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
5.00
·30 reviews
Centertown, TN
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Offers video visits · Highly recommended ·
Read bio
Amanda Sellers is a family nurse practitioner who brings a wealth of GI-specific experience to Oshi Health. At Oshi, she works closely with patients to uncover the root cause of GI issues. Before joining the Oshi Health team, Amanda worked at a private gastroenterology practice and in telemedicine ...Click to read more

Oshi Health Tennessee

Gastroenterology Practice (Virtual)
Centertown, TN
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Offers video visits ·

Lyndsay Solimine, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
4.90
·30 reviews
Centertown, TN
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Offers video visits · Highly recommended ·
Read bio
Lyndsay Solimine is a seasoned nurse practitioner who has worked in gastrointestinal (GI) care settings and has a strong background in treating adults with diverse GI conditions. As part of Oshi Health, she plays a pivotal role in leading the team of advanced practice providers (APPs). Prior to jo...Click to read more

Karee Ruth, APRN

Nurse Practitioner (Gastroenterology) (Virtual)
Centertown, TN
Accepts Aetna, BlueCross BlueShield, Cigna + 7 more
Accepting new patients · Offers video visits · Expertise in gastroenteritis ·
Read bio
Karee Ruth is a seasoned family nurse practitioner with experience treating various gastrointestinal (GI) symptoms and conditions. At Oshi Health, she takes an integrative, whole-person approach to GI care, recognizing the importance of the gut-brain connection and its effects on overall health. B...Click to read more

Emily Gunter, PA

Physician Assistant (Virtual)
Millington, TN
Accepting new patients · Offers video visits ·
Read bio
Ms. Emily Gunter is a highly skilled physician assistant at People First Urgent & Primary Care. She offers in-person consultations in Collierville, TN, as well as virtual healthcare services, enabling patients to connect with her regardless of location. Ms. Gunter earned her master's degree in Physi...Click to read more

Mariam Ayyeh, PA

Physician Assistant (Virtual)
Millington, TN
Accepting new patients · Offers video visits ·
Read bio
Ms. Mariam Ayyeh is a dedicated and caring physician assistant in Millington, TN. She currently offers services at People First Urgent & Primary Care and takes virtual appointments.  Ms. Ayyeh earned her master's degree in physician assistant studies from the University of Tennessee Health Science ...Click to read more

Irfan Pradhan, APRN, NP

Family Nurse Practitioner (Virtual)
Millington, TN
Accepting new patients · Offers video visits · Expertise in acute sinusitis + 1 more ·
Read bio
Mr. Irfan Pradhan is a dedicated family nurse practitioner offering his services at People First Urgent & Primary Care in Germantown, TN. He also supports patients virtually by taking video consultations.  As part of his formal education and training, Mr. Pradhan earned his master's degree in famil...Click to read more
Other providers
Availability last updated 04/09/2026
Availability last updated 04/09/2026

Richard Cohn, MD

Gastroenterologist
5885 mi · 1819 Clinch Ave, 212, Knoxville, TN 37916
Accepts Cigna
Accepting new patients · 25+ years of experience ·
Read bio
Richard Cohn, MD is a Gastroenterologist in Knoxville, TN. They completed their residency at University Of Ct School Of Medicine. They attended medical school at University Of Texas Medical Branch Galveston in 1977. Richard Cohn was board certified by American Board of Internal Medicine Certificatio...Click to read more

Mark Jackson, MD

Gastroenterologist
5885 mi · 1819 Clinch Ave, 212, Knoxville, TN 37916
Accepts Cigna, UnitedHealthcare
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in upper gi endoscopy + 4 more ·
Read bio
Mark Jackson, MD is a Gastroenterologist in Asheville, NC and Knoxville, TN. They attended medical school at University Of Mo in 1985. They completed their residency at Medical College Of Ga Hosp & Cli. Mark Jackson was board certified by American Board of Internal Medicine Certification in Internal...Click to read more

Robert Pollack, MD

Gastroenterologist
5885 mi · 1819 Clinch Ave, 212, Knoxville, TN 37916
Accepts Cigna, UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in irritable bowel syndrome (ibs) + 5 more ·
Read bio
Robert Pollack, MD is a Gastroenterologist in Seymour, TN and Knoxville, TN. They attended medical school at University Of South Florida College Of Medicine in 1988. They completed their residency at University Miami/Jackson Mem Mc. Robert Pollack was board certified by American Board of Gastroenter...Click to read more

Muhammed Iqbal, MD

Gastroenterologist
5885 mi · 1819 Clinch Ave, 212, Knoxville, TN 37916
Accepts Cigna, UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in irritable bowel syndrome (ibs) + 6 more ·
Read bio
Muhammed Iqbal, MD is a Gastroenterologist in Seymour, TN and Knoxville, TN. They completed their residency at E Tn U-J H Quillen College Medicine. They attended medical school at Chittagong Medical College in 1984. Muhammed Iqbal was board certified by American Board of Internal Medicine Certificat...Click to read more

Angela Meyer, MD

Gastroenterologist
5885 mi · 103 Midlake Dr, Knoxville, TN 37918
Accepts Aetna, Cigna, UnitedHealthcare + 3 more
Accepting new patients · 24 years of experience · Expertise in acid reflux + 4 more ·
Read bio
Angela Meyer, MD is a Gastroenterologist in Brevard, NC, Hendersonville, NC and Asheville, NC. They attended medical school at University Of Arizona College Of Medicine in 2002. Angela Meyer was board certified by American Board of Gastroenterology Certification in Gastroenterology. Their offices ar...Click to read more

William Ergen, MD

Gastroenterologist
5885 mi · 1311 Dowell Springs Blvd, Knoxville, TN 37909
Accepts Cigna, UnitedHealthcare + 3 more
Accepting new patients · Expertise in chronic indigestion without clear cause + 7 more ·
Read bio
William Ergen, MD is a Gastroenterologist in Powell, TN and Knoxville, TN. William Ergen was board certified by American Board of Internal Medicine Certification in Internal Medicine and American Board of Gastroenterology Certification in Gastroenterology. Their offices are located in 629 Delozier W...Click to read more

Kevin Meyers, MD

Gastroenterologist
5885 mi · 1311 Dowell Springs Blvd, Knoxville, TN 37909
Accepts Aetna, Cigna, UnitedHealthcare + 3 more
Accepting new patients · 19 years of experience · Expertise in colonoscopy + 4 more ·
Read bio
Kevin Meyers, MD is a Gastroenterologist in Knoxville, TN. They attended medical school at University Of South Carolina School Of Medicine in 2007. Kevin Meyers was board certified by American Board of Gastroenterology Certification in Gastroenterology. Their office is located in 1311 Dowell Springs...Click to read more

Jeffrey Crist, MD

Gastroenterologist
5885 mi · 9330 Park West Blvd, 506, Knoxville, TN 37923
Accepts Aetna
Accepting new patients · 25+ years of experience · Expertise in acid reflux + 6 more ·
Read bio
Jeffrey Crist, MD is a Gastroenterologist in Knoxville, TN. They attended medical school at University Of Chicago in 1978. They completed their residency at University Of Wi Hosp & Cli. Jeffrey Crist was board certified by American Board of Internal Medicine Certification in Internal Medicine and Am...Click to read more

Juan Benitez, MD

Gastroenterologist
5885 mi · 9330 Park West Blvd, 506, Knoxville, TN 37923
Accepts Aetna, Cigna, UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Expertise in irritable bowel syndrome (ibs) + 4 more ·
Read bio
Juan Benitez, MD is a Gastroenterologist in Knoxville, TN. They attended medical school at University Of Puerto Rico School Of Medicine in 1982. They completed their residency at Kttc Medical Ctr Keesler. Juan Benitez was board certified by American Board of Internal Medicine Certification in Intern...Click to read more

Isaac Cline, MD

Gastroenterologist
5885 mi · 1706 E Lamar Alexander Pkwy, Maryville, TN 37804
Accepts Aetna, Cigna, UnitedHealthcare + 3 more
Accepting new patients · Expertise in colonoscopy + 3 more ·
Read bio
Isaac Cline, MD is a Gastroenterologist in Maryville, TN. Isaac Cline was board certified by American Board of Internal Medicine Certification in Internal Medicine and American Board of Gastroenterology Certification in Gastroenterology. Their office is located in 1706 E Lamar Alexander Pkwy, Maryvi...Click to read more

Jenny Smith, MD

Gastroenterologist
5885 mi · 1706 E Lamar Alexander Pkwy, Maryville, TN 37804
Accepts Aetna, Cigna, UnitedHealthcare + 3 more
Accepting new patients · 22 years of experience · Expertise in irritable bowel syndrome (ibs) + 5 more ·
Read bio
Jenny Smith, MD is a Gastroenterologist in Maryville, TN. They attended medical school at University Of Mississippi School Of Medicine in 2004. Their office is located in 1706 E Lamar Alexander Pkwy, Maryville, TN.Click to read more

Michael Coffey, MD

Gastroenterologist
5885 mi · 1706 E Lamar Alexander Pkwy, Maryville, TN 37804
Accepts Aetna, Cigna, UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Expertise in chronic indigestion without clear cause + 5 more ·
Read bio
Michael Coffey, MD is a Gastroenterologist in Maryville, TN. They attended medical school at Umdnj-New Jersey Medical Sch in 1991. They attended medical school at University Louisville School Of Medicine. Michael Coffey was board certified by American Board of Gastroenterology Certification in Gastr...Click to read more

Edward Brown, MD

Gastroenterologist
5885 mi · 1706 E Lamar Alexander Pkwy, Maryville, TN 37804
Accepting new patients · 25+ years of experience ·
Read bio
Edward Brown, MD is a Gastroenterologist in Maryville, TN. They attended medical school at Temple University School Of Medicine in 1977. They completed their residency at Wilford Hall Medical Ctr Aetc in 1980. Edward Brown was board certified by American Board of Internal Medicine Certification in I...Click to read more

Richard Cline, MD

Gastroenterologist
5885 mi · 1706 E Lamar Alexander Pkwy, Maryville, TN 37804
Accepts Aetna, Cigna, UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Expertise in acute gastrointestinal bleeding + 3 more ·
Read bio
Richard Cline, MD is a Gastroenterologist in Maryville, TN. They completed their residency at Oh State University Hospital. They attended medical school at Ohio State University College Of Medicine in 1976. Richard Cline was board certified by American Board of Internal Medicine Certification in Int...Click to read more

Stuart Jarvis, MD

Gastroenterologist
5885 mi · 1706 E Lamar Alexander Pkwy, Maryville, TN 37804
Accepts Cigna, UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Expertise in colonoscopy + 1 more ·
Read bio
Stuart Jarvis, MD is a Gastroenterologist in Oak Ridge, TN and Maryville, TN. They attended medical school at Duke University School Of Medicine in 1975. They completed their residency at Oh State University Hospital. Stuart Jarvis was board certified by American Board of Internal Medicine Certifica...Click to read more

Thomas Moore, MD

Gastroenterologist
5885 mi · 80 Hospital Dr, 2, Barbourville, KY 40906
Accepts UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in colonoscopy + 5 more ·
Read bio
Thomas Moore, MD is a Gastroenterologist in Middlesboro, KY, Hyden, KY and London, KY. They completed their residency at University Louisville School Of Medicine. They attended medical school at University Of Louisville School Of Medicine in 1982. Thomas Moore was board certified by American Board o...Click to read more

Michael Simons, MD

Gastroenterologist
5885 mi · 1710 Cumberland Falls Hwy, Corbin, KY 40701
Accepts UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Offers video visits · Expertise in acid reflux + 5 more ·
Read bio
Michael Simons, MD is a Gastroenterologist in Corbin, KY. They attended medical school at University Of Louisville School Of Medicine in 1987. They completed their residency at University Louisville School Of Medicine. Michael Simons was board certified by American Board of Gastroenterology Certific...Click to read more

Scott Ainsworth, MD

Gastroenterologist
5885 mi · 110 S Main St, Hiawassee, GA 30546
Accepts Aetna, Cigna, UnitedHealthcare + 3 more
Accepting new patients · 25+ years of experience · Expertise in acid reflux + 6 more ·
Read bio
Scott Ainsworth, MD is a Gastroenterologist in Blairsville, GA and Hiawassee, GA. They attended medical school at Louisiana State University School Of Medical In New Orleans in 1987. They completed their residency at Alton Ochsner Medical Fndn. Their offices are located in PO Box 759, Blairsville, G...Click to read more
Calendar Check
1-3 days

Average time it takes to be seen by a provider

Doctor
100k

Verified providers with a 4.8 average rating

Primary Care Physician
15+ years

In the business of finding quality care for patients

Patients trust Zocdoc
Setting up the appointment on Zocdoc and being able to wait in the comfort of my bed for my Dr to see me was so much better...I HIGHLY recommend Zocdoc.
Felisha N
So easy to use and works EVERY time!! As a busy woman, I need to be able to schedule things quickly, and this makes that simple!! Thank you!!
Deborah P.
I found my new gynecologist thanks to zocdoc! Friendly and easy to talk to and is in network!
Clara M
NPR
New York Times
Yahoo
Self
Verge
Wall Street Journal
Frequently asked questions

How can I make a same-day appointment with a Gastroenterologist in Knoxville, TN?

On average, patients who use Zocdoc can search for a Gastroenterologist in Knoxville, TN, book an appointment, and see the Gastroenterologist within 24 hours. Same-day appointments are often available, you can search for real-time availability of Gastroenterologists in Knoxville, TN who accept your insurance and make an appointment online.

How can I find a Knoxville, TN Gastroenterologist who takes my insurance?

Zocdoc lets you search specifically for a Knoxville, TN Gastroenterologist who takes your insurance. Just choose your carrier and plan from the drop-down menu at the top of the page. If you’re not sure which plan you have, you can use Zocdoc’s insurance checker to find out.

How can I book an appointment online with a Gastroenterologist in Knoxville, TN?

Zocdoc is a free online service that helps patients find Gastroenterologists in Knoxville, TN and book appointments instantly. You can search for Knoxville, TN Gastroenterologists by symptom or visit reason. Then, choose your insurance plan. Based on that information, you’ll see a list of providers who meet your search criteria, along with their available appointment slots.

How can I find a female Gastroenterologist in Knoxville, TN?

When you search for Knoxville, TN Gastroenterologists on Zocdoc, you can filter your results by gender, in addition to other criteria. That way, you’ll only see Gastroenterologists in Knoxville, TN who match your preferences.

How can I find a Knoxville, TN Gastroenterologist who sees patients after hours?

On Zocdoc, you can search specifically for Knoxville, TN Gastroenterologists with availability after 5 p.m.

How can I find a top-rated Gastroenterologist in Knoxville, TN?

You can use Zocdoc to find Gastroenterologists in Knoxville, TN who are highly rated by other patients. These ratings are based on verified reviews submitted by real patients. Every time a patient completes an appointment booked on Zocdoc, they’re invited to review their experience. Each review must comply with Zocdoc’s guidelines.

How can I find a video visit with a Gastroenterologist online in Knoxville, TN?

Gastroenterologists in Knoxville, TN on Zocdoc who see patients through online video visits will have a purple video icon on their profiles. You can also filter your search results to show only Gastroenterologists who offer video visits.

Are video visits with a Gastroenterologist online covered by my insurance?

Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Gastroenterologists in Knoxville, TN who accept your insurance for video visits by selecting your carrier and plan from the drop-down menu at the top of the page. We recommend you check with your insurance carrier directly to confirm your coverage and out of pocket costs for video visits.

How can I find a Gastroenterologist in Knoxville, TN who sees patients in the morning or evening?

Zocdoc lets you search specifically for a Gastroenterologist who has appointments available before 10:00 am, or after 5:00 pm. Just choose the special hours filter at the top of our search page.

How can I find a Gastroenterologist in Knoxville, TN who sees patients during the weekend?

Zocdoc let's you see real-time availability for Gastroenterologists in Knoxville, TN. Many Gastroenterologists offer appointments on Saturdays and Sundays.

Zocdoc›Gastroenterologists›GI Doctors In Knoxville TN