Physician Profile
Catherine S. Chao, M.D.
Unclaimed ProfileAbout Dr. Chao
Catherine S. Chao, M.D. is a healthcare provider in Fairfax, VA specializing in pediatric gastroenterology. According to Medicare claims data, the services billed most often include study of esophagus to assess movement and monitoring and recording of esophageal function through nasal tube with electrode.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (703) 716-8700
- Email not available
Practice Locations
3700 JOSEPH SIEWICK DR SUITE 308
Fairfax, VA 22033
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
- Acute pancreatitis
- Gallstones
- Pancreatic cysts
- Primary sclerosing cholangitis
Colon and anorectal
- Anal fissure
- Colon cancer
- Colon polyps
- Lower gastrointestinal bleeding
Esophagus and swallowing
- Barrett's esophagus
- Eosinophilic esophagitis
- Esophageal stricture
- Esophagitis
Functional bowel and motility
- Chronic diarrhea
- Fecal incontinence
- Small intestinal bacterial overgrowth
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
- Functional dyspepsia
- Gastritis
- Gastroparesis
- H. pylori infection
- Peptic ulcer disease
Bowel & Colon
- Diverticulitis
Digestive Symptoms
- Constipation
Gallbladder & Bile Ducts
- Blocked Bile Duct
Procedures & services
Most searched procedures
- Colonoscopy
- Endoscopy
- Gallbladder removal
- Hernia repair
- Liver biopsy
Lower endoscopy
- Colon polyp removal
- Endoscopic control of gastrointestinal bleeding
- Flexible sigmoidoscopy
Upper endoscopy
- Endoscopic submucosal dissection
- Esophageal dilation
Capsule and physiology testing
- Anorectal manometry
- Capsule endoscopy
- Esophageal manometry
Diagnostic Testing
- 24-Hour Acid Reflux Test
- EUS-Guided Fine Needle Biopsy
- H. Pylori Breath Test
- SIBO Breath Test
Liver procedures
- Esophageal variceal banding
- Liver elastography
- Paracentesis
Treatments
- Stool Transplant
Procedures Most Often Billed to Medicare
24 services · 24 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Study of esophagus to assess movement | Treatment | 91010 |
13 |
| Monitoring and recording of esophageal function through nasal tube with electrode | Treatment | 91037 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pediatric gastroenterology specialists in Fairfax 8
Same specialty, same city.
Also performs Study of esophagus to assess movement 8
Providers in VA who bill this service to Medicare most often.
Common questions
What kind of doctor is Catherine S. Chao?
Catherine S. Chao is a pediatric gastroenterology in Fairfax, VA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Catherine S. Chao's address?
Catherine S. Chao is listed at 3700 Joseph Siewick Dr Suite 308, Fairfax, VA 22033. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Catherine S. Chao?
The number on file is (703) 716-8700. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Catherine S. Chao?
Catherine S. Chao's National Provider Identifier is 1184697443. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Catherine S. Chao have?
Catherine S. Chao has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Catherine S. Chao perform?
According to Medicare billing data, Catherine S. Chao provides treatments such as study of esophagus to assess movement and monitoring and recording of esophageal function through nasal tube with electrode. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Catherine S. Chao's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Catherine S. Chao. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.