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

4.9 out of 5 (198 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]
  • Diaphragmatic Hernia
  • Digestive System Cancer
  • Digestive System Complications
  • Digestive System Diseases
  • Digestive System Symptoms
  • Diseases Of Esophagus
  • Diseases Of Stomach And Duodenum
  • Diverticulitis
  • Duodenal Ulcer
  • Duodenitis
  • Dysphagia
  • Epigastric Pain
  • Esophageal Cancer
  • Esophagitis
  • Flatulence
  • Functional Intestinal Disorders
  • Gallbladder Cancer
  • Gastric Cancer
  • Gastric Varices
  • 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 LocationEnter your Location

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

301-774-8962

Fax 202-877-3062

Get Directions

miles away

Fax 202-877-3062

Insurance

MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.

  • List of insurance plans we accept
    • CareFirst BlueCross BlueShield Advantage Core/Enhanced
    • IH-Open POS Plus
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • Johns Hopkins Advantage MD PPO
    • Tricare Reserve Select
    • CareFirst Administrators
    • WellPoint Maryland - Maryland Health Choice
    • Anthem BCBS Medi Blue Plus
    • Anthem BCBS of VA HealthKeepers (POS & POS OA)
    • Kaiser Permanente Select
    • Network OA
    • IH-Open POS II
    • Aetna HMO
    • CIGNA PPO
    • Medicare Direct
    • Cigna True Choice Medicare (PPO)
    • Aetna Better Health of MD
    • Kaiser Permaenete Signature - Added Choice Cardiac Global
    • Kaiser Permanente HMO Plus and DHMO Plus Member
    • CareFirst Blue Choice Opt Out Plus Open Access (POS)
    • Select HMO/HealthFund/Health Network
    • CIGNA Indemnity
    • HighMark
    • CareFirst MedStar PPO
    • IH-Open HMO
    • Kaiser Permanente Medicare Advantage Signature and Select
    • Anthem Federal Employee Program Basic
    • United Healthcare Community Plan - VA Medicaid MCO
    • Coventry Health Care of Virginia
    • Aetna Classic 5000PD
    • UnitedHealthcare Medicare Adv. Special Needs Plans
    • BCBS Out-of-State Medicare Plans (Blue Advantage)
    • Cigna Preferred Medicare (HMO)
    • Mamsi Life & Health (Indem./PPO)
    • Beech Street PPO
    • Aetna Premier 200PD
    • MD IPA (HMO) & MD IPA Preferred Cardiac Global
    • Core Essential (HMO)
    • First Health PPO
    • Amerigroup DC Healthy Families
    • Kaiser Permanente Select Cardiac Global
    • Aetna Classic 5000
    • United Healthcare Choice
    • IH-Open Network Only Plus
    • United Medicare Private Fee-for-Service (PFFS) plans
    • Cigna Achieve Medicare (HMO C-SNP)
    • Lasso Healthcare - Medicare Medical Savings Account
    • Kaiser Permanente Flexible Choice POS Cardiac Global
    • Choice POS II
    • CareFirst MedStar Select PPO
    • Aetna Signature Administrator PPO/TPA
    • IH-POS Plus
    • Aetna Classic 3500
    • Navigate
    • CIGNA HMO & Network (HMO)
    • Aetna Open Choice (PPO)
    • Priority Partners - Maryland Health Choice
    • Aetna Traditional Choice (PPO)
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • Aetna Managed Choice Open Access (POS)
    • Coventry of Delaware HMO/PPO
    • United Healthcare Select Plus (POS)
    • BlueChoice Open Access
    • United Healthcare Choice Plus Cardiac Global
    • Great-West Healthcare POS/CIGNA
    • Options PPO Cardiac Global
    • Kaiser Permanente Signature
    • Anthem BCBS Medi Blue Dual Adv
    • Health Services for Children with Special Needs
    • HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
    • CareFirst Blue Choice Opt Out Open Access
    • IH-Open HMO Option
    • BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
    • United Healthcare Select HMO - EPO/NPP
    • CIGNA PPO Plus
    • UHC Group Medicare Advantage Plans (HMO, POS, PPO)
    • First Health PPO
    • United HealthCare Community Plan - Maryland Health Choice Program
    • MedStar Family Choice DC Healthy Families
    • Kaiser Permanente Medicare Plus
    • IH-Network Only Plus
    • MedStar Family Choice - Maryland Health Choice
    • HumanaChoice Honor's plan PPO
    • Aetna Medicare Advantage HMO & PPO Plans
    • Anthem BCBS Medi Blue SNP
    • MedStar Family Choice DC Healthcare Alliance
    • CareFirst EPO
    • CareFirst FEP Blue Focus
    • IH-PPO
    • Johns Hopkins Advantage MD PLUS PPO
    • CareFirst Dual Prime HMO-SNP
    • Kaiser Maryland Medicaid MCO
    • Aetna VA Exchange
    • OA Plus
    • Optimum Choice
    • United Healthcare Select HMO-EPO/NPP Cardiac Global
    • Alterwood Advanatge HMO & DSNP Plans
    • Erickson Advantage Plans
    • TRICARE East Select
    • Amerigroup DC Alliance
    • Cigna True Choice Plus Medicare (PPO)
    • Aetna Medicare Advantage PFFS Plan
    • Geisinger Medicare Advantage
    • Uniformed Services Family Health Plan
    • Anthem Federal Employee Program Standard
    • M.D. IPA (HMO)
    • Choice Fund PPO
    • AmeriHealth Caritas DC Healthy Families
    • TRICARE for Life East
    • IH-Indemnity
    • Optimum Choice Preferred (POS)
    • Aetna Managed Choice (POS)
    • MultiPlan, Inc
    • CareFirst Blue Card Program
    • Aetna Elect Choice/ Open Access (POS)
    • Private Health Care Systems (PPO)
    • Sentara Health
    • CareFirst Federal Employee Program (Std. & Basic PPO)
    • Humana Medicare Advantage - HMO Open Access
    • Choice Care Network/HUMANA (PPO)
    • United Healthcare Choice Cardiac Global
    • Medicare Advantage - Advantra Value (PPO)
    • IH-HMO
    • Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
    • TRICARE East Prime
    • Aetna Advantage 6350PD
    • Choice POS
    • UnitedHealthcare Individual Exchange Plans
    • Anthem BCBS of VA HealthKeepers (HMO)
    • TriWest Healthcare Alliance
    • AMERIVANTAGE/Amerigroup Community Care
    • United Healthcare Choice Plus
    • Private Fee-for-Service Plans (PFFS)
    • POS OA
    • M.D. IPA Preferred (POS)
    • Kaiser Permanente Signature - Added Choice
    • AmeriHealth Caritas DC Healthcare Alliance
    • Kaiser Permanente Select - Added Choice
    • Blue Choice Advantage
    • Anthem BCBS of VA Key Care POS/PPO/Indemnity
    • Aetna Better Health of VA
    • Choice POS II Open Access
    • Medicare FFS
    • CareFirst Community Health Plan of MD
    • CareFirst Blue Preferred PPO
    • CIGNA SureFit (HMO)
    • IH-Open EPO Plus
    • IH-POS
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • CareFirst Group Medicare Advantage
    • IH-EPO Plus
    • Healthy Blue (HMO, POS)
    • United Student Resources
    • CIGNA EPO
    • Magellan Complete Care of VA - VA Medicaid MCO
    • Employee Health Plan
    • United Healthcare Navigate Cardiac Global
    • Johns Hopkins Advantage MD HMO
    • Cigna Alliance Medicare (HMO)
    • Advantra Platinum (PPO)
    • HumanaChoice PPO
    • Humana Gold Plus HMO
    • Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
    • Anthem BCBS of VA HealthKeepers Plus
    • United Healthcare Options (PPO)
    • Maryland Physicians Care MCO
    • CareFirst NASCO
    • CareFirst BlueChoice HMO
    • Aetna Student Health Insurance
    • DC/MD SHOP QHP Small Business Plans
    • Humana Medicare Advantage - PPO
    • Optima Family Care MCO - VA Medicaid MCO
    • CareFirst Maryland Indemnity or PPO
    • NYC Medicare Advantage Plus
    • Coventry Health Care National Network PPO
    • CareFirst Maryland Point of Service Plan
    • Aetna Advantage 5750
    • CIGNA HMO Open Access
    • UnitedHealthcare and AARP Medicare Complete Plans
    • Veterans Affairs Community Care Network
    • UHC Passport
    • CIGNA Connect EPO
    • HealthyBlue PPO
    • Mamsi Life & Health (Indem./PPO) Cardiac Global
    • Police and Fire Clinic
    • Aetna Quality Point of Service (POS)
    • Kaiser Permanente Flexible Choice 3-tier POS
    • Aetna Basic
    • OCI Direct (HMO)
    • Cigna TotalCare (HMO D-SNP)
    • UnitedHealthcare Medicare Advantage DSNP District of Columbia
    • CIGNA POS/Network POS
    • Jai Medical Systems - Maryland Health Choice
    • CareFirst (NCA) Indemnity
    • Aetna Worker's Compensation Network
    • Aetna Advantage 6350

Education

Board Certification: American Nurses Credentialing Center

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.)

    4.9
  • Provider included you in decisions

    4.9
  • Concern the care provider showed for your questions or worries

    4.9
  • Likelihood of recommending this care provider to others

    4.9
  • Dec 6, 2025

    A-1! A new experience. Made me feel as if I mattered.

  • Nov 5, 2025

    Sandy was excellent!

  • Oct 9, 2025

    Sandy Weise made the telehealth appointment very pleasant because of her friendliness, professionalism, extensive knowledge and patience in asking the pertinent health questions, explaining the procedure, etc. She answered all of my questions, and I appreciate it very much. I also appreciate the nice lady who contacted me to schedule the telehealth visit and explained the process to me.