Sandy G Wiese, AGACNP-BC| Gastroenterology | MedStar Health
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Sandy G Wiese

Sandy G Wiese, AGACNP-BC
Provider is directly employed by MedStar Health

4.8 out of 5 (256 reviews)

Specialties: Gastroenterology

Languages: English

Clinical areas of focus

  • Bowel Obstruction
  • Colonoscopy
  • Diverticulitis
  • Duodenal Ulcer
  • Endoscopic Clip Placement
  • Endoscopic Retrograde Cholangiopancreatography
  • Gastroesophageal Reflux Disease (GERD) In Children
  • Gastrointestinal Functional Disorder Treatment
  • Inflammatory Bowel Disease (IBD) With Infection
  • Irritable Bowel Syndrome
  • Melena Treatment
  • Nausea And Vomiting Management
  • Transrectal Ultrasound
  • Upper Endoscopy
  • Variceal Band Ligation
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Conditions and procedures

Conditions I treat

  • Abdominal Cramping
  • Abdominal Pain
  • Abscess Of The Intestine
  • Acute Pancreatitis
  • Alimentary Tract Foreign Body
  • Anal Fissures
  • Anus And Rectum Diseases
  • Aphagia And Dysphagia
  • Appendiceal Cancer
  • Bile Duct Stones
  • Biliary Tract Disease
  • Blood In Stool
  • Bowel Obstruction
  • Celiac Disease
  • Choledocholithiasis
  • Chronic Diarrhea
  • Colon Disease
  • Colorectal Malignancy
  • Congenital Malformations Of Digestive System
  • Constipation
  • Crohn's Disease
  • Crohn's Disease [Regional Enteritis]
  • Digestive System Cancer
  • Digestive System Complications
  • Digestive System Diseases
  • Digestive System Symptoms
  • Diseases Of Esophagus
  • Diverticulitis
  • Duodenal Ulcer
  • Duodenitis
  • Dysphagia
  • Epigastric Pain
  • Esophageal Cancer
  • Esophagitis
  • Flatulence
  • Functional Intestinal Disorders
  • Gallbladder Cancer
  • Gastric Cancer
  • Gastritis
  • Gastroenteritis
  • Gastroesophageal Reflux Disease (GERD) In Children
  • Gastrointestinal Bleeding
  • Gastrointestinal Bleeding And Rectal Bleeding
  • Gastrointestinal Stromal Tumor (GIST)
  • H. Pylori Infection
  • Hemorrhoids
  • Hepatitis
  • Hepatomegaly
  • Hepatomegaly And Splenomegaly
  • Inflammatory Bowel Disease
  • Inflammatory Bowel Disease (IBD) With Infection
  • Intestinal Infections
  • Intestinal Stenosis
  • Irritable Bowel Syndrome
  • Liver Cirrhosis
  • Liver Encephalopathy
  • Liver Fibrosis
  • Malabsorption
  • Melena
  • Noninfective Gastroenteritis
  • Pancreatic Diseases
  • Pancreatitis
  • Paralytic Ileus And Intestinal Obstruction
  • Perianal Fistula
  • Peripheral Vascular Disease Of The Intestines
  • Polycystic Liver Disease
  • Rectal Cancer
  • Small Intestine Cancer
  • Stomach Cancer
  • Ulcerative Colitis
  • Vomiting
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Procedures I perform

  • Capsule Endoscopy
  • Celiac Disease Treatment
  • Colonoscopy
  • Endoscopic Clip Placement
  • Endoscopic Mucosal Resection
  • Endoscopic Retrograde Cholangiopancreatography
  • Endoscopic Stricture Dilation
  • Endoscopic Treatment Of Barrett's Esophagus
  • Enteroscopy
  • Ercp With Sphincterotomy
  • Esophageal Dilation
  • Esophageal PH Monitoring
  • Gastric Manometry
  • Gastric Stenting
  • Gastrointestinal Foreign Body Removal
  • Gastrointestinal Functional Disorder Treatment
  • Gastrointestinal Tube Placement
  • Helicobacter Pylori Stool Test
  • Hepatitis E Treatment
  • Hernia Repair
  • Inflammatory Bowel Disease
  • Irritable Bowel Syndrome Treatment
  • Liver Biopsy
  • Melena Treatment
  • Minimally Invasive Gastrointestinal Surgery
  • Nausea And Vomiting Management
  • Portal Hypertension Treatment
  • Sclerotherapy Of Esophageal Varices
  • Sphincterotomy
  • Swallowing Disorder Treatment
  • Transrectal Ultrasound
  • Ulcerative Colitis-Associated Arthritis Treatment
  • Upper Endoscopy
  • Variceal Band Ligation
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Practice locations

Distance from Change Location Enter your Location

18111 Prince Philip Dr
Ste 124
Olney, MD, 20832

301-774-4400
Get Directions

miles away

Fax 301-774-1034

18109 Prince Philip Dr
B-100
Olney, MD, 20832

301-774-8962
Get Directions

miles away

Fax 202-877-3062

Insurance

This list represents the major payors accepted by MedStar Health.

NOTE: Payor contracts change and not all plans associated with a payor may be covered. Payors may offer multiple plans. If you have a question related to your insurance, please contact your insurance plan directly. Contact information is located on your health insurance ID card.

*Denotes limited participation. Specific providers and practices may NOT be participating. Please contact your insurance plan directly.

  • List of insurance plans we accept
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Cigna Health Care
    • Kaiser Permanente*
    • MedStar Select (Administered by CareFirst)
    • United HealthCare
    • Aetna
    • CareFirst BlueCross BlueShield of Maryland
    • Healthspring
    • Humana
    • Medicare & Railroad Medicare
    • United HealthCare
    • Aetna Better Health of Maryland *
    • Medical Assistance/Medicaid
    • MedStar Family Choice MD
    • Priority Partners *
    • United HealthCare Community Health Plan MD
    • Wellpoint MD
    • AmeriHealth Caritas
    • Health Services For Children With Special Needs (HSCSN)
    • Medical Assistance/Medicaid
    • MedStar Family Choice DC
    • Johns Hopkins Employer Health Programs *
    • Johns Hopkins US Family Health Plan *
    • MultiPlan
    • Private Healthcare Systems
    • Tricare/Humana Military
    • VA Community Care Network (VACCN)

Education

Board Certification: American Nurses Credentialing Center, American Academy of Nurse Practitioners

Graduate: Walden University-Baltimore (2020)

Ratings and reviews

  • Explanations the care provider gave you about your problem or condition

    4.9
  • Extent to which the care provider listened to you

    4.9
  • Care provider’s discussion of any proposed treatment (options, risks, benefits, etc.)

    4.8
  • Provider included you in decisions

    4.8
  • Concern the care provider showed for your questions or worries

    4.9
  • Likelihood of recommending this care provider to others

    4.8
  • Jun 11, 2026

    Very personable.

  • Jun 4, 2026

    Good

  • Jun 3, 2026

    Sandy G Wiese is amazing. I can't highly recommend her enough.