Dr. Catherine S. Chao, MD
- Medicare services, 2024
- 24
- Medicare patients, 2024
- 15
- Publications
- 3
- Clinical trials
- 1
- MIPS score, 2024
- 83
- Practice address
- 3023 Hamaker Court, Suite 400, Fairfax, VA 22031
- Practice phone
- Call (703) 204-6375
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pediatric Specialists of Virginia Ambulatory Surgery Center
Surgery Center - Medicare-Certified · Fairfax, Virginia
Find Dr. Chao's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Catherine S. Chao is a pediatric gastroenterology physician in Fairfax, Virginia
Dr. Chao practices at Pediatric Specialists of Virginia Ambulatory Surgery Center in Fairfax, Virginia.
Dr. Chao's NPI, 1184697443, was assigned on February 8, 2006. Dr. Chao graduated from University of Pittsburgh School of Medicine in 1991. Dr. Chao holds Virginia license 0101056644.
- NPI
- 1184697443NPI Registry (opens in a new tab)
- NPI enumeration date
- February 8, 2006
- NPI status
- Active
- Practice phone
- (703) 204-6375
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Catherine S. Chao practices at Pediatric Specialists of Virginia Ambulatory Surgery Center in Fairfax, Virginia
Dr. Chao's primary practice is Pediatric Specialists of Virginia Ambulatory Surgery Center, at 3023 Hamaker Court, Suite 400, Fairfax, VA 22031. The practice phone is (703) 204-6375.
- Pediatric Specialists of Virginia Ambulatory Surgery Center3023 Hamaker Court, Suite 400, Fairfax, VA 22031Phone(703) 204-6375
Source: Dmand AI Affiliation Data
Dr. Catherine S. Chao is affiliated with 3 sites of care and 2 medical groups
Dr. Chao's primary practice is Pediatric Specialists of Virginia Ambulatory Surgery Center in Fairfax, Virginia. The medical group on file is Pediatric Specialists of Virginia. Dmand AI also links Dr. Chao to 2 more group practices and clinics and 1 medical group, each named with a free account. Dr. Chao's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Catherine S. Chao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chao practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pediatric Specialists of Virginia Ambulatory Surgery Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Catherine S. Chao is one of 45 pediatric gastroenterology physicians in Virginia
Pediatric gastroenterology is Dr. Chao's primary specialty in the NPI Registry, under taxonomy code 2080P0206X. Dr. Chao is board certified in pediatric gastroenterology by the American Board of Pediatrics. Dmand AI has Dr. Chao's licenses on file in 4 states: Virginia, California, Maryland and Pennsylvania.
Specialties and state licenses
- Pediatric gastroenterology, VirginiaPrimary
- California license
- Maryland license
- Pennsylvania license
Pediatric gastroenterology physicians near Dr. Chao
Counts of pediatric gastroenterology physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Catherine S. Chao billed Medicare for 24 services in 2024
CMS data shows 24 Medicare services from Dr. Chao across 2 procedure codes in 2024, for 15 Medicare patients. Medicare paid $1,085 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chao's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Tests and treatments
- 2022: 382024: 2437%
Dr. Chao's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chao and other pediatric gastroenterology physicians in Virginia.
Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data
Dr. Catherine S. Chao treated 15 Medicare patients in 2024, average age 66
CMS counts 15 Medicare patients who saw Dr. Chao in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 2.05, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chao's median patient age at 14, with 51% women.
Dr. Chao's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chao's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 14
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Catherine S. Chao scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Chao for performance year 2024, reported as part of a group.
Dr. Chao's MIPS scores, performance year 2024
- 83of 100Final score
- 73of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Catherine S. Chao has 3 publications on record
Dmand AI links 3 papers to Dr. Chao, published from 2015 to 2021. Dr. Chao's most frequent co-authors are David Bastawrous, DO, Michael Joseph Eblan, MD and Dahye Dana Hong, MD.
Dr. Chao's most frequent co-authors
- David Bastawrous, DO1 shared paper
- Michael Joseph Eblan, MD1 shared paper
- Dahye Dana Hong, MD1 shared paper
Recent publications by Dr. Chao
See who Dr. Chao researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chao works with, so you can find a warm path to the right pediatric gastroenterology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Catherine S. Chao has worked on 1 clinical trial
Dmand AI links Dr. Chao to 1 clinical trial. Conditions studied include Constipation and Signs and Symptoms, Digestive.
Conditions in Dr. Chao's trials
- Constipation
- Signs and Symptoms, Digestive
Investigators on the most trials with Dr. Chao
- Youhanna S. Al-Tawil, MD1 shared trial
- Frank Anthony Calcagno, MD1 shared trial
- Duane F. Dyson, MD1 shared trial
Recent clinical trials with Dr. Chao
A Study of Prucalopride For Functional Constipation in Children and Teenagers (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Catherine S. Chao received $762 in industry payments from 2016 to 2024
CMS Open Payments shows 26 general payments to Dr. Chao from 9 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $269.
General payments to Dr. Chao by program year, 2016 to 2024
General payments to Dr. Chao by kind, 2016 to 2024
- Food and beverage$75699%
- Education$61%
Companies that paid Dr. Chao the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Catherine S. Chao has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chao, most recently Top Doctors:Washington DC Area in 2012.
Awards and honors for Dr. Chao
- 2012
- Top Doctors:Washington DC Area
Source: Dmand AI Professional Profile Data
Dr. Catherine S. Chao graduated from University of Pittsburgh School of Medicine
Dr. Chao graduated from University of Pittsburgh School of Medicine in 1991.
- Medical school
- Board certified in pediatric gastroenterology
Source: Dmand AI Professional Profile Data
Dr. Catherine S. Chao accepts plans from 11 insurance carriers
Dr. Chao is in network with 11 carriers, including United Healthcare, Cigna and Molina. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- United Healthcare
- Cigna
- Molina
- Blue Cross Blue Shield of Massachusetts
- CareFirst BlueCross BlueShield
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- +3 more carriersWith a free account
Plan types Dr. Chao accepts, by number of carriers
- Medicare7
- PPO7
- HMO4
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Catherine S. Chao's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Catherine S. Chao
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Catherine S. Chao's NPI number?
Dr. Catherine S. Chao's NPI number is 1184697443. It was assigned on February 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Catherine S. Chao?
Dr. Catherine S. Chao is a pediatric gastroenterology physician in Fairfax, Virginia. The primary specialty in the NPI Registry is Pediatric Gastroenterology Physician (taxonomy code 2080P0206X).
Where does Dr. Catherine S. Chao practice?
Dr. Chao practices at 3023 Hamaker Court, Suite 400, Fairfax, VA 22031. Dr. Chao's primary practice is Pediatric Specialists of Virginia Ambulatory Surgery Center in Fairfax, Virginia. Dmand AI also links Dr. Chao to 2 group practices and clinics and 1 medical group.
What is Dr. Catherine S. Chao's office phone number?
The practice phone on file for Dr. Chao is (703) 204-6375.
What is Dr. Catherine S. Chao's medical license number?
Dr. Chao holds Virginia license 0101056644, one of the licenses on file in 4 states.
Which states has Dr. Catherine S. Chao been licensed in?
Dmand AI has state licenses on file for Dr. Chao in Virginia (1997 to 2026), California (since 1993), Maryland (1997 to 2022) and Pennsylvania (1994).
What medical group is Dr. Catherine S. Chao part of?
Dr. Chao is linked to Pediatric Specialists of Virginia. Dmand AI links Dr. Chao to 1 more medical group.
Does Dr. Catherine S. Chao accept Medicare?
Yes. CMS data shows Dr. Chao billed Medicare for 24 services in 2024.
What is Dr. Catherine S. Chao's MIPS score?
Dr. Chao's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Catherine S. Chao see?
CMS counts 15 Medicare patients who saw Dr. Chao in 2024, with an average age of 66.
Show 8 more questionsShow fewer questions
Is Dr. Catherine S. Chao board certified?
Yes. Dr. Chao is board certified in pediatric gastroenterology by the American Board of Pediatrics.
What services does Dr. Catherine S. Chao bill to Medicare?
In 2024, Dr. Chao's most billed Medicare services were digestive system test (91010) and digestive system test (91037).
Where did Dr. Catherine S. Chao go to medical school?
Dr. Chao graduated from University of Pittsburgh School of Medicine in 1991.
Has Dr. Catherine S. Chao received payments from drug or device companies?
CMS Open Payments shows $762 in general payments to Dr. Chao from 9 companies from 2016 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Catherine S. Chao been practicing?
Dr. Chao graduated from medical school in 1991, 35 years ago.
Does Dr. Catherine S. Chao do research?
Dmand AI links 3 publications to Dr. Chao, published from 2015 to 2021. Dr. Chao has worked on 1 clinical trial.
Who does Dr. Catherine S. Chao publish with?
Dr. Chao's most frequent co-authors are David Bastawrous, DO (1 shared paper), Michael Joseph Eblan, MD (1 shared paper) and Dahye Dana Hong, MD (1 shared paper).
What insurance does Dr. Catherine S. Chao accept?
Dr. Chao is in network with 11 carriers, including United Healthcare, Cigna and Molina. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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