Male 64 years


Dr. Loren H Marshall, MD



Gastroenterology     -  Missouri,  Saint Louis

 Overview

Dr. Loren H Marshall, MD works in Saint Louis, Missouri is a specialist in Gastroenterology, Internal Medicine and graduated University Tex Sw in 1990. Dr. Marshall is affiliated with Saint Johns Mercy Medical Center, St. Luke's Hospital and practicing for 39 years

 Specialties

  • Gastroenterology
  • Internal Medicine

 Conditions

• Acupuncture Meridian Therapy
• Aneurysmal Bone Cyst
• Blindness
• Chronic Pain Management
• Cirrhosis
• da Vinci® Prostate Removal
• da Vinci® Prostate Surgery
• Diabetic Retinopathy
• Duodenitis
• Dystonia 7, Torsion
  ...
• Endometrial Cancer
• Endophthalmitis
• Ethmoidectomy (Sinus Surgery)
• Female Pelvic Disorders
• Guar Gum Allergy
• Herpes Simplex Virus Antenatal Infection
• Inflammatory Bowel Disease
• Islet Cell Adenoma
• Lens Disorders
• Lower Back Injuries
• Maxillary and Malar Fractures
• Minimally Invasive Resection of Mediastinal Tumor
• Optic Ataxia
• Orbital Fracture
• Orbital Lymphoma
• Panic Disorder With Agorapobia
• Polycystic Ovarian Syndrome
• Radical Retropubic Prostate Removal
• Radiesse® Injections
• Renal Artery Stenosis (RAS)
• Restylane® Injections
• Retinal Laser Photocoagulation
• Retinal Testing
• Scrambler Therapy (ST5)
• Shoulder Arthroscopy
• Stomach Surgery
• Thoracoscopic Segmentectomy
• Throat Culture
• Thromboendarterectomy or Excision of Infected Graft
• Tonsillitis
• Vaginal Cancer
• Vulvar Cancer
 more details

 Procedures

• Abdominal Pain
• Anemia
• Barrett's Esophagus
• Benign Neoplasm of the Digestive System
• Capsule Endoscopy
• Cirrhosis
• Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
• Diaphragmatic and-or Hiatal Hernia
  ...
• Diverticulitis, Intestinal
• Diverticulosis, Intestinal
• Duodenal Ulcer
• Dysphagia
• Endoscopy
• Endoscopy (Esophagus, Stomach, Small Intestine)
• Enteritis
• ERCP (Endoscopic Retrograde Cholangiopancreatography)
• Esophageal Cancer
• Esophageal Ulcer
• Esophagitis
• Gallstones
• Gas-Bloat Syndrome
• Gastric Ulcer
• Gastritis
• Gastroesophageal Reflux Disease (GERD)
• Gastrointestinal Bleeding
• Gastrointestinal Malabsorption
• Heartburn
• Hemochromatosis
• Hemorrhoids
• Hepatitis B - Immune Response
• Hepatitis C
• Ileus
• Indigestion
• Intestinal Obstruction
• Irritable Bowel Syndrome
• Lactose Intolerance
• Malnutrition
• Non-Neonatal Jaundice
• Pancreatitis
• Peptic Ulcer
• Stomach and Small Intestine Cancer
• Ulcerative Colitis
• Unexplained Weight Loss
• Vascular Insufficiency of Intestines
• Vomiting Disorders
 more details

 Board Certifications

  • Board Certified by the American Board of Internal Medicine

 Years Since Graduation

  • 39

 State License

  • Missouri

 Spoken Languages

  • Chinese

 Education & Training

Fellowship Hospital

University Tex Sw

Dallas, TX, USA

Year completed: 1990

Residency Hospital

Vanderbilt University

Nashville, TN, USA

Year completed: 1987

Medical School

Vanderbilt University School Of Medicine

Nashville, TN, United States

Graduated: 1984

 Awards

1   American College of Gastroenterology
2   American Gastroenterological Association
3   American Society for Gastrointestinal Endoscopy

 Dr. Marshall Reviews

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 Office Locations


Primary location

 Gateway Gastroenterology
621 South New Ballas Road Suite 228A
Missouri (MO)
Saint Louis
63141
 Phone:(314) 432-5900
Additional data:
Free Standing Surgery Center?    No
Office Volume:    85 patients per day
Performs Procedures On Site?    Yes

Accepting New Patients

  • Yes
* Please verify this information when scheduling an appointment.

 Map & Directions



Gateway Gastroenterology, 621 South New Ballas Road Suite 228A, Saint Louis, Missouri (MO), 63141




 Insurances Accepted (check insurance plans)

  • Aetna
  • Aetna HMO
  • American Enterprise Group
  • American Republic
  • Anthem Blue Cross Blue Shield
  • Anthem Blue Cross Blue Shield HMO
  • Anthem Blue Cross Blue Shield PPO
  • Assurant Health
  • AvMed
  • Blue Card PPO
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of Illinois PPO
  • Blue Preferred Plus POS
  • Blue Preferred Select
  • Choice Care PPO
  • Choice Plus POS
  • Choice Plus POS II
  • Cigna
  • Cigna HMO
  • Cigna PPO
  • Commercial Insurance Company
  • Coventry Health Care
  • Coventry Health Care of Missouri
  • First Health (Coventry Health Care)
  • First Health (Coventry Health Care) PPO
  • Golden Rule
  • Great West Healthcare-Cigna PPO
  • Group Health Cooperative
  • HealthLink
  • HealthLink PPO
  • Humana
  • Medicare
  • Medicare MCR
  • Medico
  • MultiPlan
  • MultiPlan PPO
  • Navigate HMO
  • Navigate POS
  • Open Access
  • Options PPO
  • PHCS Network PPO
  • Platinum PPO
  • Tricare
  • TriCare for Life
  • UnitedHealthCare

* Please verify this information when scheduling an appointment.

 Blog Posts

Blog Posts for Dr. Loren H Marshall, MD are not present.

 Patients Questions

Patients questions for Dr. Loren H Marshall, MD are not present.

 Affiliated Hospitals


Saint Johns Mercy Medical Center photo


Saint Johns Mercy Medical Center

615 South New Ballas Road Missouri MO, Saint Louis, 63141

Saint Johns Mercy Medical Center is a non-profit hospital located in Saint Louis, MO. Procedures/Diagnosis costs are at the state average in 14 of 14 procedures. Length of Stay is at the state average in 11 of 14 procedures.



  •  Latest reviews for Gastroenterology specialists

  • Dr. C. is a pleasant, professional caring and fun doctor. Answered all my questions on a keep it simple level and explained everything. He took his time. I will refer them when needed. What a great group!
    07 February 2024
    (6)
  • He is the best if you need help with panic attacks. He fixed up my medication and I feel better.
    31 January 2024
    (40)
  • Dr. Jungblut and staff are all professional, fun, conscientious. Been going here for a long time. My children and grandchildren now see Dr. Jungblut too.
    24 January 2024
    (7)
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