Mariastella Serrano, MD| Pediatric Gastroenterology | MedStar Health
Mariastella Serrano

Mariastella Serrano, MD
Provider is directly employed by MedStar Health

4.8 out of 5 (214 reviews)

Specialties: Pediatric Gastroenterology

Languages: Spanish, English

877-680-5504

About me

Dr. Serrano completed her Pediatrics residency and Pediatric Gastroenterology, Hepatology and Nutrition fellowship in New Orleans - Louisiana State University and Tulane University. She is the Division Chief for Pediatric Gastroenterology, Hepatology and Nutrition at MedStar Georgetown University Hospital and is an associate professor in Pediatrics at Georgetown University.  Dr. Serrano has a special interest in nutritional support and inflammatory bowel disease. Dr. Serrano is a member of the Crohn's and Colitis Foundation and is co-chair for its Pediatric Affairs Committee.  She is also a member of the Pan American Crohn's and Colitis Organization (PANCCO) and is the director for the pediatric task force of PANCCO which strives to enhance education on Crohn's disease and ulcerative colitis for professionals, patients and their families in Latin America. She is board certified both in Pediatrics and Pediatric Gastroenterology.

Clinical areas of focus

  • Abdominal Pain
  • Celiac Disease
  • Colitis
  • Constipation
  • Crohn's Disease
  • Diarrhea
  • Gastroesophageal Reflux Disease
  • Irritable Bowel Syndrome
  • Liver Disease
  • Polyps
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Conditions and procedures

Conditions I treat

  • Abdominal Distention
  • Abdominal Pain
  • Abnormal Amylase Blood Test
  • Abnormal Liver Function Blood Test
  • Achalasia
  • Acute Pancreatitis
  • Allergic Colitis
  • Allergic Esophagitis
  • Allergic Gastroenteritis
  • Anal Fistula
  • Anal Polyp
  • Anal Spasm
  • Anal Stenosis
  • Anal Ulcer
  • Annular Pancreas
  • Anorectal Disease
  • Autoimmune Enteropathy
  • Barrett's Esophagus
  • Biliary Atresia
  • Biliary Cirrhosis
  • Biliary Tract Disease
  • Blood In Stool
  • Bright Red Blood Per Rectum
  • Celiac Disease
  • Cholangitis
  • Cholecystitis
  • Cholelithiasis
  • Cholestasis
  • Chronic Abdominal Pain
  • Chronic Diarrhea
  • Chronic Pancreatitis
  • Cirrhosis
  • Colitis
  • Colonic Polyps
  • Congenital Anomalies Of The Esophagus
  • Congenital Cystic Liver
  • Constipation
  • Crohn's Disease
  • Cyclic Vomiting Syndrome
  • Diarrhea
  • Digestive Disorders
  • Diverticular Disease
  • Diverticulitis
  • Drug Induced Liver Injury
  • Duodenal Ulcer
  • Duodenitis
  • Dyspepsia
  • Dysphagia
  • Eosinophilic Colitis
  • Eosinophilic Enteritis
  • Eosinophilic Esophagitis
  • Eosinophilic Gastritis
  • Epigastric Pain
  • Eructation
  • Esophageal Disease
  • Esophageal Mass
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Fatty Liver
  • Fecal Impaction
  • Fecal Incontinence
  • Flatulence
  • Gallbladder Disease
  • Gallbladder Polyp
  • Gastric Anomaly
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease
  • Gastroesophageal Reflux Disease In Infancy
  • Gastrointestinal Bleeding
  • Gastroparesis
  • Gluten Sensitivity
  • Growth Failure
  • Helicobacter Pylori
  • Hepatitis
  • Hepatomegaly
  • Hepatorenal Syndrome
  • Hiatal Hernia
  • Hirschsprung's Disease
  • Hydrops Of Gallbladder
  • Hyperbilirubinemia
  • Idiopathic Megacolon
  • Ileitis
  • Inflammatory Bowel Disease
  • Intestinal Atresia
  • Intestinal Obstruction
  • Intractable Abdominal Pain
  • Intractable Constipation
  • Intractable Vomiting
  • Irritable Bowel Syndrome
  • Jaundice
  • Lactose Intolerance
  • Liver Disease
  • Malabsorption
  • Malnutrition
  • Megacolon
  • Metabolic Liver Disease
  • Nausea
  • Neonatal Ichthyosis And Sclerosing Cholangitis Syndrome
  • Obstipation
  • Obstructive Jaundice
  • Ogilvie Syndrome
  • Omphalocele
  • Pancreas Disease
  • Pancreas Divisum
  • Pancreatic Insufficiency
  • Pancreaticobiliary Disease
  • Pancreatitis
  • Peptic Ulcer
  • Peritonitis
  • Polyposis Syndrome
  • Polyps
  • Portal Hypertension
  • Portal Hypertensive Gastropathy
  • Primary Biliary Cholangitis
  • Primary Biliary Cirrhosis
  • Progressive Familial Intrahepatic Cholestasis (PFIC)
  • Rectal Bleeding
  • Rectal Fistula
  • Rectal Polyp
  • Right Upper Quadrant Pain
  • Rumination Syndrome
  • Secondary Biliary Cirrhosis
  • Short Bowel Syndrome
  • Small Bowel Disease
  • Small Bowel Stricture
  • Small Intestine Disease
  • Stomach Cancer
  • Tenesmus
  • Toxic Liver Injury
  • Tyrosinemia
  • Ulcerative Colitis
  • Urea Cycle Defects
  • Whipple's Disease
  • Wilson's Disease
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Procedures I perform

  • Antroduodenal Manometry
  • Biologic Therapy For Gastrointestinal Diseases
  • Breath Testing
  • Colonic Manometry
  • Colonoscopy
  • Esophageal Manometry
  • Esophagogastroduodenoscopy (EGD)
  • Fecal Transplant
  • Feeding Tube Management
  • Liver Biopsy
  • Manometry
  • Pancreas Function Test
  • PH Impedance Test
  • Proctosigmoidoscopy
  • Upper Gi Series
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Practice locations

Distance from Change LocationEnter your Location

4200 Wisconsin Avenue Northwest
Suite 200
Washington, DC, 20016

202-243-3400

Fax 202-243-3434

Get Directions

miles away

Fax 202-243-3434

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
    • Aetna Open Choice (PPO)
    • Aetna Medicare Advantage HMO & PPO Plans
    • Innovation Health: Open POS Plus
    • Innovation Health: Open POS II
    • Aetna Managed Choice Open Access (POS)
    • Aetna Choice POS & Choice POS II
    • Innovation Health: POS Plus
    • Aetna Managed Choice (POS)
    • Innovation Health: POS
    • Aetna Open HMO/Open HMO Option/Open EPO Plus
    • Aetna HMO-Open Access/Select OA
    • Aetna HealthFund/Health Network Option OA
    • Innovation Health: HMO & EPO Plus
    • Aetna Select HMO/HealthFund/Health Network
    • Aetna HMO
    • Innovation Health: Open Network Only Plus
    • Aetna Elect Choice/ Open Access (POS)
    • Innovation Health: Network Only Plus
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • Cigna TotalCare (HMO D-SNP)
    • Cigna Preferred Medicare
    • Cigna Alliance Medicare (HMO) |
    • Cigna Achieve Medicare (HMO C-SNP)
    • Veterans Affairs Community Care Network (VA CCN)
    • United Medicare Advantage DSNP District of Columbia
    • United Student Resources
    • United Select Plus (POS)
    • United Select HMO - EPO/NPP
    • United Options (PPO) (includes Empire PPO)
    • United Golden Rule
    • United GEHA (for all other states) Compass Rose
    • D-SNP)
    • I-SNP
    • United Nursing Home Plan (C-SNP
    • United Erickson Advantage Plans
    • United Choice Plus
    • United Choice
    • United Mamsi Life & Health
    • MedStar Family Choice DC Healthy Families
    • MedStar Family Choice DC Healthcare Alliance
    • United MD IPA Preferred (POS)
    • United MD IPA (HMO)
    • Kaiser Permanente Signature-Added Choice
    • Kaiser Signature
    • Kaiser HMO Plus and DHMO Plus Member
    • Kaiser Select-Added Choice
    • Kaiser Select
    • Kaiser Medicare Plus
    • Kaiser Medicare Advantage Signature and Select
    • Kaiser Flexible Choice
    • Kaiser Maryland Medicaid MCO
    • HumanaChoice PPO
    • HumanaChoice Honor’s plan PPO
    • Health Services for Children with Special Needs (HSCSN)
    • Cigna True Choice Plus Medicare (PPO)
    • Cigna True Choice Medicare (PPO)
    • Cigna POS/Network POS
    • Cigna Indemnity
    • Cigna POS Open Access & Open Access Plus
    • Cigna Network Open Access
    • Cigna HMO Open Access
    • Cigna PPO and PPO Plus
    • Cigna EPO
    • Cigna Choice Fund PPO
    • Choice Care Network/HUMANA (PPO)
    • Beech Street PPO
    • Anthem Plus BCBS of VA HealthKeepers Plus
    • Anthem (POS & Open Access POS) BCBS of VA HealthKeepers
    • Anthem HMO - BCBS of VA HealthKeepers
    • Innovation Health: Indemnity
    • Aetna Traditional Choice (PPO)
    • Aetna Student Health Insurance
    • Aetna Signature Administrator PPO/TPA
    • Aetna Quality Point of Service (POS)
    • Innovation Health: PPO
    • Cigna HMO & Network (HMO)
    • WellPoint Maryland - Maryland Health Choice
    • WellPoint Maryland
    • Virginia Premier
    • Veterans Affairs Community Care Network
    • UnitedHealthcare Individual Exchange Plans
    • United Community Plan - Maryland Health Choice Program
    • Private Health Care Systems (PHCS) (PPO)
    • Police and Fire Clinic
    • United Optimum Choice Preferred (POS) & OCI Direct (HMO)
    • United Optimum Choice
    • United Navigate
    • United Core Essential (HMO)
    • United Group Medicare Advantage Plans
    • United AARP Medicare Complete
    • Traditional Medicare Fee for Service
    • Medicaid - Virginia
    • Medicaid - Maryland
    • Medicaid - District of Columbia
    • Tricare for Life East
    • Tricare Reserve Select
    • Tricare East Select
    • Tricare East Prime
    • Maryland Point of Service Plan (MPOS)
    • HealthyBlue PPO
    • Federal Employee Program (Std/Basic PPO/Blue Focus)
    • CareFirst NASCO
    • CareFirst MedStar Select PPO
    • CareFirst MedStar PPO
    • CareFirst Maryland Indemnity or PPO
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • CareFirst Group Medicare Advantage
    • CareFirst BC/BS Advantage Core/Enhanced
    • CareFirst Blue Card Program (Out-of-area BCBS plans)
    • CareFirst Administrators
    • CareFirst (NCA) Indemnity
    • Carefirst BlueChoice Opt Out Plus Open Access (POS)
    • Carefirst Healthy Blue (HMO/POS)
    • Carefirst BlueChoice Opt Out Open Access
    • Carefirst BlueChoice Open Access
    • Carefirst BlueChoice HMO
    • Carefirst EPO
    • Carefirst Blue Preferred PPO
    • Great-West Healthcare POS/CIGNA
    • First Health PPO
    • Coventry Health Care National Network PPO
    • Coventry Health Care of Virginia
    • Coventry of Delaware HMO/PPO
    • MedStar Family Choice - Maryland Health Choice

Education

Board Certification: American Board of Pediatrics, Pediatrics

Board Certification: American Board of Pediatrics, Pediatric Gastroenterology

Medical School: Universidad del Norte Programa de Medicina (1992)

Ratings and reviews

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

    4.8
  • 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

    4.8
  • Likelihood of recommending this care provider to others

    4.8
  • Sep 27, 2024

    We had a good experience today. Very grateful for Dr. Serrano and the infusion nurses.

  • Sep 25, 2024

    Dr Serrano is very good.

  • Sep 10, 2024

    Dr. Serrano is very kind and compassionate. It is easy to see she cares about her patients