Dr. Robert B. Chao, MD
- Medicare services, 2024
- 477
- Medicare patients, 2024
- 165
- Part D claims, 2024
- 565
- Publications
- 3
- MIPS score, 2024
- 83
- Practice address
- 3300 Gallows Rd, Falls Church, VA 22046
- Practice phone
- Call (703) 698-3659
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Inova Fairfax Hospital - Unit
Acute Care Hospital-Unit · Falls Church, 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. Robert B. Chao is a rheumatologist in Falls Church, Virginia
Dr. Chao practices at Inova Fairfax Hospital - Unit in Falls Church, Virginia.
Dr. Chao's NPI, 1033536735, was assigned on March 20, 2014. Dr. Chao holds Virginia license 0101269638.
- NPI
- 1033536735NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254759269
- NPI enumeration date
- March 20, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (703) 698-3659
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert B. Chao practices at Inova Fairfax Hospital - Unit in Falls Church, Virginia
Dr. Chao's primary practice is Inova Fairfax Hospital - Unit, at 3300 Gallows Rd, Falls Church, VA 22046 in Falls Church City. The practice phone is (703) 698-3659.
- Inova Fairfax Hospital - Unit3300 Gallows Rd, Falls Church, VA 22046 · Falls Church CityPhone(703) 698-3659
Source: Dmand AI Affiliation Data
Dr. Robert B. Chao is affiliated with 6 sites of care and 1 medical group
Dr. Chao's primary practice is Inova Fairfax Hospital - Unit in Falls Church, Virginia. Dr. Chao is also affiliated with Inova Fairfax Hospital. The medical group on file is Inova Urgent Care Center. Dmand AI also links Dr. Chao to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert B. Chao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chao practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Inova Fairfax Hospital - Unit | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert B. Chao is one of 160 rheumatologists in Virginia
Rheumatology is Dr. Chao's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Chao is licensed in Virginia.
Specialties and state licenses
- Rheumatology, VirginiaPrimary
Rheumatologists near Dr. Chao
Counts of rheumatologists 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. Robert B. Chao billed Medicare for 477 services in 2024
CMS data shows 477 Medicare services from Dr. Chao across 6 procedure codes in 2024, for 165 Medicare patients. Medicare paid $33,660 for them. Every service was in an office.
Dr. Chao's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3232024: 29010%
- Other services
- 2023: 02024: 187
Dr. Chao compared with the Virginia median for rheumatologists, 2024
- Dr. Chao
- Virginia median
- Medicare services
- 477vs 99952% below
- Medicare patients
- 165vs 30446% below
- Part D claims
- 459vs 97053% below
Medians across 159 rheumatologists in Virginia with Dmand AI profiles that report each measure.
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 rheumatologists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert B. Chao treated 165 Medicare patients in 2024, average age 72
CMS counts 165 Medicare patients who saw Dr. Chao in 2024. The largest group is 65 to 74, with 86 patients. 75% of them have arthritis, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chao's median patient age at 50, with 75% women.
Dr. Chao's Medicare patients by age, 2024
Dr. Chao's Medicare patients by sex, 2024
- Women11771%
- Men4829%
Chronic conditions among Dr. Chao's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure66%
- Osteoporosis29%
- Mood disorders25%
- Chronic kidney disease24%
- Diabetes24%
- Depression22%
Share of Medicare patients with each condition. A patient can have several.
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 50
Patient panel by sex, all payers
- Women75%
- Men24%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert B. Chao wrote 565 Medicare Part D claims in 2024
In 2024, Dr. Chao wrote 565 Medicare Part D claims for 118 patients. 72% of them were for generic drugs. CMS names the drug for 459 of them, across 13 drugs with 11 or more claims each, at $609,653 in total drug cost. In 2023, CMS named 493 claims across 14 drugs.
Dr. Chao's Part D claims by kind of drug, 2024
- Generic405 claims72%
- Brand-name160 claims28%
Dr. Chao's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4932024: 4597%
Drugs named by CMS: 13 in 2024, 14 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Robert B. 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 accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chao as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
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.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Robert B. Chao has 3 publications on record
Dmand AI links 3 papers to Dr. Chao in 2017. 2017 was the busiest year, with 2. Dr. Chao's most frequent co-authors are Alexander Ivanov, MD, Stephen J. Peterson, MD and Cecil V. Philip, MD.
Dr. Chao's most frequent co-authors
- Alexander Ivanov, MD1 shared paper
- Stephen J. Peterson, MD1 shared paper
- Cecil V. Philip, 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 rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert B. Chao received $4,894 in industry payments from 2017 to 2025
CMS Open Payments shows 3 general payments to Dr. Chao from 3 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 97% of the total. Novartis Pharmaceuticals Corporation paid the most, $4,750.
General payments to Dr. Chao by program year, 2017 to 2025
General payments to Dr. Chao by kind, 2017 to 2025
- Consulting fees$4,75097%
- Food and beverage$1443%
Companies that paid Dr. Chao the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert B. 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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Robert B. 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. Robert B. Chao's NPI number?
Dr. Robert B. Chao's NPI number is 1033536735. It was assigned on March 20, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert B. Chao?
Dr. Robert B. Chao is a rheumatologist in Falls Church, Virginia. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Robert B. Chao practice?
Dr. Chao practices at 3300 Gallows Rd, Falls Church, VA 22046. Dr. Chao's primary practice is Inova Fairfax Hospital - Unit in Falls Church, Virginia. Dmand AI also links Dr. Chao to 3 hospitals and 1 group practice or clinic.
What is Dr. Robert B. Chao's office phone number?
The practice phone on file for Dr. Chao is (703) 698-3659.
What is Dr. Robert B. Chao's medical license number?
Dr. Chao holds Virginia license 0101269638.
Which hospitals is Dr. Robert B. Chao affiliated with?
Dr. Chao is affiliated with Inova Fairfax Hospital. Dmand AI links Dr. Chao to 4 more hospitals.
What medical group is Dr. Robert B. Chao part of?
Dr. Chao is linked to Inova Urgent Care Center.
Does Dr. Robert B. Chao accept Medicare?
Yes. CMS data shows Dr. Chao billed Medicare for 477 services in 2024, and Dr. Chao accepts Medicare assignment.
Does Dr. Robert B. Chao offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chao as offering telehealth services.
What is Dr. Robert B. 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.
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How many Medicare patients does Dr. Robert B. Chao see?
CMS counts 165 Medicare patients who saw Dr. Chao in 2024, with an average age of 72.
What services does Dr. Robert B. Chao bill to Medicare?
In 2024, Dr. Chao's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, new patient (99204).
What drugs does Dr. Robert B. Chao prescribe most?
In 2024 Medicare Part D data, Dr. Chao's most prescribed drugs by claims were Hydroxychloroquine Sulfate, Methotrexate and Prednisone.
Has Dr. Robert B. Chao received payments from drug or device companies?
CMS Open Payments shows $4,894 in general payments to Dr. Chao from 3 companies from 2017 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Robert B. Chao been practicing?
Dr. Chao graduated from medical school in 2014, 12 years ago.
Does Dr. Robert B. Chao do research?
Dmand AI links 3 publications to Dr. Chao.
Who does Dr. Robert B. Chao publish with?
Dr. Chao's most frequent co-authors are Alexander Ivanov, MD (1 shared paper), Stephen J. Peterson, MD (1 shared paper) and Cecil V. Philip, MD (1 shared paper).
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