Dr. John Clemmons, MD

Gastroenterology •  Male • Age 70

  
Accepting new patients

Dr. John Clemmons, MD is a Gastroenterology Specialist in Houston, TX and has over 45 years of experience in the medical field. Dr. Clemmons has more experience with Anal & Rectal Disorders, Anal & Rectal Surgery, and Gastrointestinal Disorders than other specialists in his area. He graduated from Howard University College Of Medicine medical school in 1975. He is affiliated with medical facilities such as HCA Houston Healthcare Medical Center and CHI St Lukes Health - Baylor St Lukes Medical Center. He is accepting new patients. Be sure to call ahead with Dr. Clemmons to book an appointment.


Locations

Chi St. Luke's Health

New Patient?
(713) 528-6562
Chi St. Luke's Health1213 Hermann Dr Houston, TX 77004
1

Dr. Clemmons' Reviews

Likelihood to recommend Dr. Clemmons

4.2

Based on 63 ratings

5 Stars
77.77777777777777%
(49)
4 Stars
0%
(0)
3 Stars
1.5873015873015872%
(1)
2 Stars
1.5873015873015872%
(1)
1 Star
19.047619047619047%
(12)
healthgrades logo

Leave a review

How likely are you to recommend
Dr. Clemmons?
(Select your rating)
What People Say About Dr. John Clemmons, MD
RecentHighestLowestMost Helpful
Reply Flag
Dr. Clemmons has been my gastroenterologist for several years. His experience and professionalism is outstanding. I would highly recommend him to anyone who experiences any GI issues.
Was this helpful?
thumbs up icon option
thumbs down icon option
Kenneth Glynn Rubinstein-Bourghs – Jun 15, 2020
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
NEVER GO HERE. My husband had a colonoscopy. He told them ahead of time he has a lot of rectal pain and that he always requires double the standard sedation. I could hear him screaming from the waiting room multiple times. It was terrifying. I find out afterwards that they ran out of fentanyl (didn’t have any in the office) and only used versed. He told them several times beforehand that he would need pain meds. No one gave him the option of general anesthesia instead of conscious sedation. If he knew that he would have went with GA option. The staff were very friendly, but I was very disappointed still.
Was this helpful?
thumbs up icon option
thumbs down icon option
May 29, 2020
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Just had my second colonoscopy with Dr. Clemmons. He is the best at informing you what you need to do to live a healthier lifestyle Explains everything he finds during procedure. I wouldn't go anywhere else to have my procedures.
Was this helpful?
thumbs up icon option1
thumbs down icon option
Monica – Dec 05, 2019
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
This Dr and his practice are AMAZING!!! I’ve been seeing him for 15 years and I can’t say enough about this practice from the people scheduling, the front office, those attending with him and of course Dr. Clemmons! This practice is SUPERB!!!
Was this helpful?
thumbs up icon option1
thumbs down icon option
Debra Hayes – Sep 30, 2019
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Exceptional Treatment.
Was this helpful?
thumbs up icon option2
thumbs down icon option
The Woodlands – May 10, 2019
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr. Clemens treatment style and care of patient is refreshing. I was made to feel at ease. His experience, knowledge and determination in finding a remedy is satisfactory. We are very close to find a treatment for my illness. Conrado Hernández 833-331-2268
Was this helpful?
thumbs up icon option1
thumbs down icon option
Conrado Hernandez in Houston, TX – Apr 24, 2019
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr. Clemmons is amazing, he literally saved my life. I was misdiagnosed by 3 other GI doctors 5 times prior to seeing Dr. Clemmons. He preformed an Upper GI and Colonoscopy on me & has been the doctor to diagnose, manage & help me to achieve remission of Crohn's Disease for over 6 years now. His staff is very professional and personable. I tell any and everyone that I know to go to him if dealing with GI complications.
Was this helpful?
thumbs up icon option4
thumbs down icon option
Erica G in Houston, TX – Aug 19, 2018
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Great doctor, great bed side manner, soft spoken an most of all he’s concerned about your heath
Was this helpful?
thumbs up icon option2
thumbs down icon option
Aug 14, 2018
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr Clemmons is very easy to talk to, an extremely trustworthy and capable dr, maybe one of the top Gastro docs in Houston. Problem is, I had an endoscopy without full general anesthesia and it was very uncomfortable. Then had Colonoscopy & seemed like I had very little anesthesia at all- I was writhing in pain, some of the worst pain I believe I ever experienced. Would put Dr C next to God if he would just use full General anesthesia. 2 stars cause his decision to use very weak anesthesia
Was this helpful?
thumbs up icon option2
thumbs down icon option1
Mar 15, 2018
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr. Clemmons is a fantastic doctor. He is extremely knowledgable & takes the time necessary to explain any procedures, diagnosis & treatment so that his patient has a full understanding. I appreciate his patience & the fact that each patient is just that, a patient & not a number. I highly recommend Dr. Clemmons.
Was this helpful?
thumbs up icon option3
thumbs down icon option
Kim B in Missouri City, TX – Nov 30, 2017
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr.Cemmons and his staff were extremely communicative, professional and above all nice. What an amazing experience. I will recommend him and his equally amazing staff to all my friends.
Was this helpful?
thumbs up icon option2
thumbs down icon option1
Charlie Neath in Houston, TX – Nov 22, 2017
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
A true professional. Efficient and caring staff members. Prompt service. Please go see Dr. Clemmons.
Was this helpful?
thumbs up icon option1
thumbs down icon option4
Adolfo Vasquez, Esq. in Houston, TX – Jun 21, 2017
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr. Clemmons staff worked to get me in on the same day I called for my first appointment because I was very ill. The staff was friendly and answered all my questions. Dr. Clemmons was kind and was quick to move forward with a treatment plan. Other physicians I had been to wanted to take the "let's wait and see what happens" treatment plan. Thank you Dr. Clemmons for taking care of me.
Was this helpful?
thumbs up icon option3
thumbs down icon option1
Susan Fox in Houston, TX – Jun 05, 2017
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Awesome! Great man and
Was this helpful?
thumbs up icon option1
thumbs down icon option1
Davideliff in Houston – May 21, 2017
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr. Clemmons was friendly, professional and a great communicator. Making an appointment for a colonoscopy was easy and his office staff were wonderful. He gave me all the information I needed and asked several times if I had any questions. His answers to the few questions I had were complete and easy to understand. He has a calm and polite manner that put me at ease. My appointment was at 8:00. I arrived at 7:40 and completed forms and I was taken back to an exam room almost right at 8:00.
Was this helpful?
thumbs up icon option3
thumbs down icon option4
Brent Braveman in Houston, TX – Mar 16, 2017
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Wonderful staff and doctor!!!!!
Was this helpful?
thumbs up icon option1
thumbs down icon option
Prairieville, LA – Feb 08, 2017
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr. Clemmons is an excellent specialist. He is extremely thorough, professional, and listens to what you have to say. This doctor does not have regular hours. He reviews your test results and call on weekends!! There is no waiting long periods of time to hear tests results. I have referred several to Dr. Clemmons. They are as happy with him as I.
Was this helpful?
thumbs up icon option3
thumbs down icon option2
RF Colmenares in Kingwood TX – Nov 01, 2016
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Abrupt, spoke over me, would not allow me to describe my symptoms, prescribed medication which I could not take (due to other medical conditions and prescriptions), ushered me out the door without ever hearing me. I ended up in ER a few days later. I’m on a high-deductible plan too so I was paying out of pocket. What a waste of time and money and dangerous to boot. Staff is unprofessional and rude as well.
Was this helpful?
thumbs up icon option10
thumbs down icon option
Houston, TX – Sep 13, 2016
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Dr. Clemmons has been my doctor since 1988. He always taken the time to explain everything concerning my health to me and has referred me to other doctors of whom I have always been pleased with. Thank you Dr. Clemmons for taking care of me and my family members. Respectfully yours, Elizabeth Teagle
Was this helpful?
thumbs up icon option2
thumbs down icon option4
Elizabeth Teagle in Houston, TX – Jul 09, 2016
×Post a ResponseAre you Dr. John Clemmons, MD?
Reply Flag
Not medicated properly most painful experience I ever had you can hear other patients screaming
Was this helpful?
thumbs up icon option12
thumbs down icon option1
Jay S in Houston, TX – Jun 30, 2016
×Post a ResponseAre you Dr. John Clemmons, MD?

Leave a review

How was your experience with Dr. Clemmons?

Insurance Check

Search for your insurance provider

Dr. Clemmons accepts

Accepted insurance can change. Please double-check when making an appointment.

(713) 528-6562

Dr. Clemmons accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Amerigroup (Wellpoint)
Anthem
National (BlueCard) PPO
Assurant Health
Blue Cross Blue Shield
Blue Card PPO
Blue Cross Blue Shield of Texas
Blue Advantage HMO
Blue Choice
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna
Cigna HMO
Cigna PPO
LocalPlus
Open Access
Open Access Plus
Commercial Insurance Company
Coventry Health Care
EmblemHealth
Emblem Health
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Government Employees Health Association (GEHA)
GEHA
HAP Insurance
Health Alliance
HealthSmart
Humana
Choice Care PPO
Preferred PPO
Mail Handlers Benefit Plan (MHBP)
Medicaid
Medical Mutual of Ohio
Molina Healthcare
Molina
MultiPlan
MultiPlan PPO
PHCS Network PPO
Principal Life
Tricare
TriCare for Life
UnitedHealthCare
Choice Plus POS
Navigate POS
United Healthcare

Background Check

No malpractice claims found for Texas
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Practice Areas

Anal & Rectal Disorders

Typically treats 84% more than their peers

Based on claims data for 2 conditions and procedures

TreatmentsTreatment Frequency
Hemorrhoids
very high
very high

Treatment Frequency

Dr. Clemmons treats Hemorrhoids more than 89% of their peers

Dr. Clemmons treats this condition more than 89% of their peers

Anal or Rectal Pain
normal
normal

Treatment Frequency

Dr. Clemmons treats Anal or Rectal Pain more than 79% of their peers

Dr. Clemmons treats this condition more than 79% of their peers

Anal & Rectal Surgery

Typically treats 71% more than their peers

Based on claims data for 1 condition or procedure

TreatmentsTreatment Frequency
Hemorrhoidectomy or Excision of Anal Tags
normal
normal

Treatment Frequency

Dr. Clemmons performs Hemorrhoidectomy or Excision of Anal Tags more than 71% of their peers

Dr. Clemmons performs this procedure more than 71% of their peers

Gastrointestinal Disorders

Gastrointestinal disorders specialists diagnose and treat conditions that affect the gastrointestinal tract, including Crohn's disease, ulcers, hernias, and food poisoning.

Typically treats 74% more than their peers

Based on claims data for 19 conditions and procedures

TreatmentsTreatment Frequency
Abdominal Disorders
very high
very high

Treatment Frequency

Dr. Clemmons treats Abdominal Disorders more than 99% of their peers

Dr. Clemmons treats this condition more than 99% of their peers

Gastrointestinal Diseases
very high
very high

Treatment Frequency

Dr. Clemmons treats Gastrointestinal Diseases more than 98% of their peers

Dr. Clemmons treats this condition more than 98% of their peers

Gastroparesis
very high
very high

Treatment Frequency

Dr. Clemmons treats Gastroparesis more than 97% of their peers

Dr. Clemmons treats this condition more than 97% of their peers

Esophageal Disorders

Esophageal disorder specialists diagnose and treat conditions affecting the esophagus, such as reflux esophagitis, indigestion, and esophageal ulcers through procedures including medication, surgery, and swallowing therapy.

Typically treats 63% more than their peers

Based on claims data for 6 conditions and procedures

TreatmentsTreatment Frequency
Esophageal Diseases
very high
very high

Treatment Frequency

Dr. Clemmons treats Esophageal Diseases more than 90% of their peers

Dr. Clemmons treats this condition more than 90% of their peers

Dysphagia
high
high

Treatment Frequency

Dr. Clemmons treats Dysphagia more than 84% of their peers

Dr. Clemmons treats this condition more than 84% of their peers

Esophagitis
normal
normal

Treatment Frequency

Dr. Clemmons treats Esophagitis more than 79% of their peers

Dr. Clemmons treats this condition more than 79% of their peers

Hide other practice areas

Check Dr. Clemmons' experience treating your condition or procedure

Dr. Clemmons' conditions and procedures:

  • Abdominal Disorders
  • Abdominal Pain
  • Abscess
  • All Types of Food Poisoning
  • Anal or Rectal Pain
  • Anemia
  • Autoimmune Diseases
  • Barrett's Esophagus
  • Benign Tumor
  • Bile Duct Procedure
  • Blood Disorders
  • Cancer
  • Cholelithiasis
  • Colonoscopy
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • Constipation
  • Crohn's Disease
  • Dehydration
  • Diarrhea
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Dysphagia
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • ERCP (Endoscopic Retrograde Cholangiopancreatography)
  • Esophageal Cancer
  • Esophageal Diseases
  • Esophageal Varices
  • Esophagitis
  • Gallstones
  • Gastritis
  • Gastroenterology Procedures
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Diseases
  • Gastrojejunal Ulcer
  • Gastroparesis
  • Giardiasis
  • Heartburn
  • Hemorrhoidectomy or Excision of Anal Tags
  • Hemorrhoids
  • Hepatitis C
  • Hepatopulmonary Syndrome
  • Hepatorenal Syndrome
  • Hernia
  • Incision and Removal of Foreign Object
  • Inflammatory Bowel Disease
  • Intestinal Abscess
  • Irritable Bowel Syndrome
  • Liver Biopsy
  • Liver Damage from Alcohol
  • Megacolon
  • Nausea
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Pancreatitis
  • Peptic Ulcer
  • Reflux Esophagitis
  • Stomach Diseases
  • Stomal Ulcer
  • Ulcer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Vascular Insufficiency of Intestines
  • Viral Enteritis
  • Viral Hepatitis

About Me

Biography

Dr. John Clemmons, MD is a Gastroenterology Specialist in Houston, TX and has over 45 years of experience in the medical field. Dr. Clemmons has more experience with Anal & Rectal Disorders, Anal & Rectal Surgery, and Gastrointestinal Disorders than...

Specialties

  • Gastroenterology

Education

1981
Emory University Program
Fellowship Hospital
1981
Emory University Program
Residency Hospital
1977
Emory U Prog
Internship Hospital
1975
Howard University College Of Medicine
Medical School

Frequently Asked Questions

How can I make an appointment with Dr. John Clemmons, MD?

Is Dr. John Clemmons, MD accepting new patients?

Does Dr. John Clemmons, MD accept my insurance?

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Clemmons treats patients.

Learn more

HCA Houston Healthcare Medical Center

Houston, TX

71% Patient experience rating, 2% higher than the national average

  • Patient Safety Excellence Award™ (2020)

CHI St Lukes Health - Baylor St Lukes Medical Center

Houston, TX

69% Patient experience rating, Equal to the national average

  • America's 250 Best Hospitals Award™ (2020)
  • Gastrointestinal Care Excellence Award™ (2020, 2019, 2018)
  • General Surgery Excellence Award™ (2019, 2018)

Houston Methodist Hospital

Houston, TX

81% Patient experience rating, 12% higher than the national average

  • America’s 100 Best Hospitals for Gastrointestinal Care Award™ (2020, 2019)
  • America’s 100 Best Hospitals for General Surgery Award™ (2020, 2019)
  • America's 250 Best Hospitals Award™ (2020, 2019, 2018)
  • America's 50 Best Hospitals Award™ (2020, 2019, 2018)
  • Outstanding Patient Experience Award™ (2020)

Memorial Hermann - Texas Medical Center

Houston, TX

78% Patient experience rating, 9% higher than the national average

  • General Surgery Excellence Award™ (2020, 2018)
  • America's 250 Best Hospitals Award™ (2018)
  • Gastrointestinal Care Excellence Award™ (2018)

Memorial Hermann Memorial City Medical Center

Houston, TX

78% Patient experience rating, 9% higher than the national average

  • Outstanding Patient Experience Award™ (2020, 2019, 2018)
  • America's 250 Best Hospitals Award™ (2018)
  • Gastrointestinal Care Excellence Award™ (2018)
  • General Surgery Excellence Award™ (2018)
  • Patient Safety Excellence Award™ (2018)

Saint Joseph Medical Center

Houston, TX

61% Patient experience rating, 8% lower than the national average