Dr. Loyal Tillotson, MD

GastroenterologyMaleAge 69


Dr. Loyal Tillotson, MD is a Gastroenterology Specialist in Rapid City, SD and has over 38 years of experience in the medical field. Dr. Tillotson has extensive experience in Esophageal Disorders and Anal & Rectal Disorders. He graduated from Harvard Medical School in 1985. He is affiliated with Banner - University Medical Center South. His office accepts new patients.

Dr. Loyal Tillotson, MD

Rapid City Medical Center

2820 Mount Rushmore Rd Rapid City, SD 57701
Accepting new patients

Make an Appointment

(605) 342-3280

Accepting new patients

  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Friendly Staff
    Patients said the staff was friendly. See reviews

Save money with free prescription discounts

Optum Perks and Healthgrades are subsidiaries of RVO Health.

Experience and Background Checks


Background Check

Healthgrades does not collect malpractice claims information for South Dakota
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

Frequently Treated by Dr. Tillotson

Based on treatment records, we have identified the following as areas of care that Dr. Tillotson treats more often than their peers. If you are unsure whether Dr. Tillotson treats other conditions, please contact the office at (605) 342-3280.

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.Compare with other Esophageal Disorders specialists.

Dr. Tillotson is experienced in the area of Esophageal Disorders. See the graph below to learn more about his experience.

Based on claims data for 19 conditions and procedures

Dr. Tillotson
Similar Providers
Eosinophilic Esophagitis
Barrett's Esophagus
Esophageal Ulcer
Very High

Anal & Rectal Disorders

Compare with other Anal & Rectal Disorders specialists.

Dr. Tillotson is experienced in the area of Anal & Rectal Disorders. See the graph below to learn more about his experience.

Based on claims data for 6 conditions and procedures

Dr. Tillotson
Similar Providers
Anal or Rectal Pain
Very High

Check Dr. Tillotson's experience treating your condition or procedure

Dr. Tillotson's conditions and procedures:

  • Abdominal Pain
  • Achalasia
  • Acidosis
  • Acute Deep Vein Thrombosis (DVT)
  • Acute Pharyngitis
  • Acute Venous Embolism Thrombosis
  • ADHD and-or ADD
  • Alkalosis
  • All Headaches (incl. Migraine)
  • Allergic Rhinitis
  • Anal or Rectal Pain
  • Anemia
  • Anxiety
  • Arthritis
  • Arthritis of the Elbow
  • Asthma
  • Atherosclerosis
  • Back Pain
  • Barrett's Esophagus
  • Bedsores
  • Benign Neoplasm of the Digestive System
  • Bladder Infection
  • Blood in Urine (Hematuria)
  • Bronchitis
  • Bruise of Face, Scalp, or Neck
  • Calcium Metabolism Disorders
  • Celiac Disease
  • Cellulitis
  • Chest Pain
  • Chronic Neck Pain
  • Chronic Pain
  • Cirrhosis
  • Colitis
  • Colon Disorders
  • Colon Polyp
  • Constipation
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Cough
  • Crohn's Disease
  • Deep Vein Thrombosis (DVT)
  • Dehydration
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Polyneuropathy
  • Diaphragmatic and-or Hiatal Hernia
  • Diarrhea
  • Difficulty With Walking
  • Diffuse Esophageal Spasm
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Dizziness
  • Dry Eyes
  • Duodenal Ulcer
  • Duodenitis
  • Dyslipidemia
  • Dysphagia
  • Emphysema
  • Enlarged Prostate (BPH)
  • Enteritis
  • Eosinophilic Esophagitis
  • Esophageal Achalasia and Cardiospasm
  • Esophageal Dilation
  • Esophageal Motility Disorders
  • Esophageal pH Monitoring
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Familial Adenomatous Polyposis
  • Fibromyalgia
  • Gait Abnormality
  • Gallstones
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Diseases
  • Gastrointestinal Malabsorption
  • Gastroparesis
  • Gout
  • Heart Disease
  • Heartburn
  • Hemochromatosis
  • Hemorrhoids
  • Hepatitis
  • Hepatitis B - Immune Response
  • Hepatitis C
  • Hernia
  • Hiatal Hernia
  • Hyperkalemia
  • Hyperlipidemia
  • Hypertension
  • Hypokalemia
  • Hypotension
  • Hypotension (Excluding Maternal)
  • Hypothyroidism
  • Ileus
  • Impedance Testing
  • Indigestion
  • Inflammatory Bowel Disease
  • Insomnia
  • Intestinal Obstruction
  • Iron Metabolism Disorders
  • Irritable Bowel Syndrome
  • Ischemic Colitis
  • Itchy Skin
  • Lactose Intolerance
  • Leg and Foot Ulcers
  • Lice
  • Limb Pain
  • Lipid Disorders
  • Liver Damage from Alcohol
  • Low Blood Oxygen Level
  • Magnesium Metabolism Disorders
  • Mallory-Weiss Syndrome
  • Malnutrition
  • Mineral Metabolism Disorders
  • Muscle Weakness
  • Nausea
  • Neoplasm of Gastrointestinal Tract
  • Neurogenic Bladder
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Nosebleed
  • Obesity
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteoarthritis of Spine
  • Osteopenia
  • Osteoporosis
  • Overweight
  • Pancreatitis
  • Peptic Ulcer
  • Pharyngitis
  • Phosphorus Metabolism Disorders
  • Pneumonia
  • Pollen Allergy
  • Polyneuropathy
  • Polyuria
  • Primary Biliary Cholangitis
  • Reflux Esophagitis
  • Restless Leg Syndrome
  • Sciatica (Not Due to Disc Displacement)
  • Secondary Hypertension
  • Secondary Renovascular Hypertension
  • Shortness of Breath
  • Sinus Bradycardia
  • Sinus Tachycardia
  • Sleep Apnea
  • Tinnitus
  • Tobacco Use Disorder
  • Ulcer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Urinary Tract Infection (UTI)
  • VAP Lipid Testing
  • Venous Embolism and Thrombosis
  • Venous Insufficiency
  • Vertigo
  • Viral Hepatitis
  • Viral Infection
  • Vitamin D Deficiency
  • Vomiting Disorders
  • Wheezing
  • Wireless pH Testing

Insurance Check

Search for your insurance provider

Dr. Tillotson accepts

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

(605) 342-3280

Dr. Tillotson accepts the following insurance:

American Republic
National (BlueCard) PPO
Assurant Health
Blue Cross Blue Shield
CareFirst Blue Cross Blue Shield
HealthyBlue Advantage
Coventry Health Care
First Choice Health
First Health
First Health (Coventry Health Care)
Government Employees Health Association (GEHA)
Health Net
Mutual of Omaha
NGS CoreSource
Optima Health
Commercial PPO
Sanford Health Plan
Thrivent Financial
United Healthcare PPO

Dr. Tillotson's Reviews

Likelihood to recommend Dr. Tillotson


Based on 3 ratings

5 Star
4 Star
3 Star
2 Star
1 Star
What went well
No reviews yet
What could be improved
No reviews yet

Your trust is our top concern.

We strive to keep the reviews trustworthy, honest & fair.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

Ive been sick for over a year, throwing up multiple times a week, if not a day. Tillotson wanted to redo testing that its taken me a year to get done, for no apparent reason, and wouldn't help unless I did, wouldn't even let me try to get the old testing for him to look at. Felt like it was more important for him to get his share of the money ($) than how I feeling. He walked out when I ended up crying because he wasn't going to help me. All this after waiting over an hour AFTER my appointment time when I was there a whole hour early. Unprofessional. Would NOT recommend.
What went well
No results
What could be improved
  • Long wait times
  • Didn't listen or answer questions
  • Didn't trust the provider's decisions
2 people found this helpful
Jul 24, 2021
×Post a ResponseAre you Dr. Loyal Tillotson, MD?

Leave a review

How was your experience with Dr. Tillotson?

Is this your profile?

Respond to reviews, add information, and reach more patients. Claiming is free and only takes a minute.

Claim your profile

About Me

Care Philosophy

Dr. Tillotson is certified as a Diplomat in both internal medicine and gastroenterology by the American Board of Internal Medicine.


  • Gastroenterology
  • Internal Medicine

Board Certifications


Massachusetts General Hospital
Fellowship Hospital
Duke University Hospital
Internship Hospital
Duke University Med Center
Internship Hospital
Harvard Medical School
Medical School


Frequently Asked Questions

What is the best way to schedule an appointment with Dr. Loyal Tillotson, MD?

View contact information to make an appointment.

Does Dr. Loyal Tillotson, MD accept any insurance plans?

A list of accepted insurance providers is available on the Healthgrades insurance check. It is always a good idea to verify your insurance when making an appointment.

Does Dr. Loyal Tillotson, MD accept new patients?

New patients are generally accepted by Dr. Loyal Tillotson, MD on Healthgrades. To arrange an appointment, call the number on Dr. Tillotson's profile.

What are Dr. Loyal Tillotson, MD's top areas of expertise?

Dr. Tillotson specializes in Esophageal Disorders and Anal & Rectal Disorders. See more on Healthgrades.

What conditions does Dr. Loyal Tillotson, MD treat?

Dr. Tillotson frequently treats the following conditions: Benign Neoplasm of the Digestive System , Gastritis, and Esophagitis. See more on Healthgrades.

What is Dr. Loyal Tillotson, MD's office address?

Dr. Tillotson's office is located at 2820 Mount Rushmore Rd, Rapid City, SD 57701. You can find other locations and directions on Healthgrades.

Is Dr. Loyal Tillotson, MD affiliated with any hospitals?

Dr. Loyal Tillotson, MD is affiliated with Banner - University Medical Center South.

Is Dr. Loyal Tillotson, MD a board-certified professional?

Yes, Dr. Loyal Tillotson, MD holds board certifications in Internal Medicine.

How much experience does Dr. Loyal Tillotson, MD have?

Dr. Tillotson has over 37 years of healthcare experience.

Does Dr. Loyal Tillotson, MD receive good ratings from patients?

There is a star rating of 3.3/5 for Dr. Loyal Tillotson, MD. Patients say that the appointment wasn't rushed and the provider explained conditions well. See all patient feedback on Healthgrades.


Rapid City Medical Center

Rapid City Medical Center2820 Mount Rushmore Rd Rapid City, SD 57701

Banner University Medical Center-TUscon, AZ

Banner - University Medical Group LLC3838 N Campbell Ave Bldg 2 Tucson, AZ 85719

Affiliated Hospitals

Dr. Tillotson is affiliated with the following hospital. Select the hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Banner - University Medical Center South

Tucson, AZ

58% Patients that would definitely recommend, 12% lower than the national average