Dr. John Chia-Su Chao, MD
- Medicare services, 2024
- 2,536
- Medicare patients, 2024
- 329
- Part D claims, 2024
- 606
- Publications
- 8
- Clinical trials
- 1
- Practice address
- 5505 Peachtree Dunwoody Rd, Atlanta, GA 30342
- Practice phone
- Call (404) 847-0893
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Atlanta Surgery Center, Ltd
Atlanta, Georgia
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. John Chia-Su Chao is an orthopedic surgeon in Atlanta, Georgia
Dr. Chao practices at Atlanta Surgery Center, Ltd in Atlanta, Georgia.
Dr. Chao's NPI, 1871792945, was assigned on July 17, 2007. Dr. Chao graduated from University of Texas Southwestern Medical School at Dallas in 2007. Dr. Chao holds Georgia license 69558.
- NPI
- 1871792945NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941457006
- NPI enumeration date
- July 17, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (404) 847-0893
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Chia-Su Chao practices at Atlanta Surgery Center, Ltd in Atlanta, Georgia
Dr. Chao's primary practice is Atlanta Surgery Center, Ltd, at 5505 Peachtree Dunwoody Rd, Atlanta, GA 30342 in Fulton County. The practice phone is (404) 847-0893.
- Atlanta Surgery Center, Ltd5505 Peachtree Dunwoody Rd, Atlanta, GA 30342 · Fulton CountyPhone(404) 847-0893
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Chia-Su Chao is affiliated with 7 sites of care and 2 medical groups
Dr. Chao's primary practice is Atlanta Surgery Center, Ltd in Atlanta, Georgia. Dr. Chao is also affiliated with Northside Hospital Atlanta. The medical group on file is Select Physical Therapy. Dmand AI also links Dr. Chao to 3 more hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Chia-Su 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 |
|---|---|
| Atlanta Surgery Center, Ltd | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Chia-Su Chao is one of 659 orthopedic surgeons in Georgia
Orthopaedic surgery is Dr. Chao's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dmand AI has Dr. Chao's licenses on file in 2 states: Georgia and Texas.
Specialties and state licenses
- Orthopaedic surgery, GeorgiaPrimary
- Orthopaedic foot and ankle surgery, Texas
Orthopedic surgeons near Dr. Chao
Counts of orthopedic surgeons 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. John Chia-Su Chao billed Medicare for 2,536 services in 2024
CMS data shows 2,536 Medicare services from Dr. Chao across 17 procedure codes in 2024, for 329 Medicare patients. Medicare paid $64,419 for them.
Dr. Chao's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 312024: 1,5214806%
- Imaging
- 2023: 3542024: 40113%
- Office and hospital visits
- 2023: 3292024: 39420%
- Surgery
- 2023: 1462024: 22051%
Where Dr. Chao's Medicare services took place, 2024
- In an office2,33292%
- In a facility2048%
Dr. Chao compared with the Georgia median for orthopedic surgeons, 2024
- Dr. Chao
- Georgia median
- Medicare services
- 2,536vs 1,57461% above
- Medicare patients
- 329vs 28018% above
- Part D claims
- 538vs 35452% above
Medians across 619 orthopedic surgeons in Georgia 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 orthopedic surgeons in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Chia-Su Chao treated 329 Medicare patients in 2024, average age 73
CMS counts 329 Medicare patients who saw Dr. Chao in 2024. The largest group is 65 to 74, with 199 patients. 75% of them have high cholesterol, and 64% have arthritis. Their average risk score is 0.79, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chao's median patient age at 57, with 60% women.
Dr. Chao's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chao's Medicare patients by sex, 2024
- Women21666%
- Men11334%
Chronic conditions among Dr. Chao's Medicare patients, 2024
- High cholesterol75%
- Arthritis64%
- High blood pressure62%
- Ischemic heart disease31%
- Anxiety22%
- Osteoporosis20%
- Diabetes18%
- Mood disorders18%
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 57
Patient panel by sex, all payers
- Women60%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Chia-Su Chao wrote 606 Medicare Part D claims in 2024
In 2024, Dr. Chao wrote 606 Medicare Part D claims for 240 patients. 99% of them were for generic drugs. CMS names the drug for 538 of them, across 12 drugs with 11 or more claims each, at $3,676 in total drug cost. In 2023, CMS named 438 claims across 11 drugs.
Dr. Chao's Part D claims by kind of drug, 2024
- Generic599 claims99%
- Brand-name and other7 claims1%
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.
Drug classes CMS tracks in Dr. Chao's Part D claims, 2024
- Opioids36%218 of 606 claims
- Antibiotics6%37 of 606 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4382024: 53823%
Drugs named by CMS: 12 in 2024, 11 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. John Chia-Su Chao scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 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 counts 13 procedures of removal of tissue by Dr. Chao, more than 64% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Chao's MIPS scores, performance year 2024
- 95of 100Final score
- 94of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chao ranks in Medicare procedure volume
- Removal of tissue
- 64th percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Chia-Su Chao has 8 publications on record
Dmand AI links 8 papers to Dr. Chao, published from 2013 to 2021. The most frequent topics are Fracture Fixation, Internal, Bone Screws and Calcaneus. Dr. Chao has published most often in J Orthop Trauma. Dr. Chao's most frequent co-authors are Rahul Banerjee, MD, John An Kuang Chao, MD and Ryan Metri Taylor, MD.
Dr. Chao's papers by year, 2013 to 2021
Topics Dr. Chao writes about most
- Fracture Fixation, Internal
- Bone Screws
- Calcaneus
- Fractures, Bone
Dr. Chao's most frequent co-authors
- Rahul Banerjee, MD2 shared papers
- John An Kuang Chao, MD2 shared papers
- Ryan Metri Taylor, MD2 shared papers
Recent publications by Dr. Chao
Orthop Clin North Am
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 orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Chia-Su Chao has worked on 1 clinical trial
Dmand AI links Dr. Chao to 1 clinical trial. Conditions studied include Lymphoma, Large B-Cell, Diffuse and Lymphoma, B-Cell.
Conditions in Dr. Chao's trials
- Lymphoma, Large B-Cell, Diffuse
- Lymphoma, B-Cell
Investigators on the most trials with Dr. Chao
- Luke Paul Akard, MD1 shared trial
- Mohamad Ali Cherry, MD1 shared trial
- Jay Gordon Courtright, MD1 shared trial
Recent clinical trials with Dr. Chao
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. John Chia-Su Chao received $17,254 in industry payments from 2016 to 2025
CMS Open Payments shows 58 general payments to Dr. Chao from 19 drug and device companies from 2016 to 2025. Education make up the largest share, 71% of the total. United Orthopedics LLC paid the most, $10,634.
General payments to Dr. Chao by program year, 2016 to 2025
General payments to Dr. Chao by kind, 2016 to 2025
- Education$12,25671%
- Food and beverage$3,10718%
- Travel and lodging$1,89011%
Companies that paid Dr. Chao the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Chia-Su Chao graduated from University of Texas Southwestern Medical School at Dallas
Dr. Chao graduated from University of Texas Southwestern Medical School at Dallas in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Chia-Su 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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)Doctors and Clinicians Utilization Data (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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. John Chia-Su 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. John Chia-Su Chao's NPI number?
Dr. John Chia-Su Chao's NPI number is 1871792945. It was assigned on July 17, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John Chia-Su Chao?
Dr. John Chia-Su Chao is an orthopedic surgeon in Atlanta, Georgia. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. John Chia-Su Chao practice?
Dr. Chao practices at 5505 Peachtree Dunwoody Rd, Atlanta, GA 30342. Dr. Chao's primary practice is Atlanta Surgery Center, Ltd in Atlanta, Georgia. Dmand AI also links Dr. Chao to 3 hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group.
What is Dr. John Chia-Su Chao's office phone number?
The practice phone on file for Dr. Chao is (404) 847-0893.
What is Dr. John Chia-Su Chao's medical license number?
Dr. Chao holds Georgia license 69558, one of the licenses on file in 2 states.
Which states has Dr. John Chia-Su Chao been licensed in?
Dmand AI has state licenses on file for Dr. Chao in Georgia and Texas.
Which hospitals is Dr. John Chia-Su Chao affiliated with?
Dr. Chao is affiliated with Northside Hospital Atlanta. Dmand AI links Dr. Chao to 3 more hospitals.
What medical group is Dr. John Chia-Su Chao part of?
Dr. Chao is linked to Select Physical Therapy. Dmand AI links Dr. Chao to 1 more medical group.
Does Dr. John Chia-Su Chao accept Medicare?
Yes. CMS data shows Dr. Chao billed Medicare for 2,536 services in 2024, and Dr. Chao accepts Medicare assignment.
What is Dr. John Chia-Su Chao's MIPS score?
Dr. Chao's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. John Chia-Su Chao see?
CMS counts 329 Medicare patients who saw Dr. Chao in 2024, with an average age of 73.
What services does Dr. John Chia-Su Chao bill to Medicare?
In 2024, Dr. Chao's most billed Medicare services were injected or infused drug (J1010), diagnostic imaging (73630) and office visit, established patient (99213).
Where did Dr. John Chia-Su Chao go to medical school?
Dr. Chao graduated from University of Texas Southwestern Medical School at Dallas in 2007.
What drugs does Dr. John Chia-Su Chao prescribe most?
In 2024 Medicare Part D data, Dr. Chao's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Gabapentin and Oxycodone-Acetaminophen.
Has Dr. John Chia-Su Chao received payments from drug or device companies?
CMS Open Payments shows $17,254 in general payments to Dr. Chao from 19 companies from 2016 to 2025. The largest total came from United Orthopedics LLC.
How long has Dr. John Chia-Su Chao been practicing?
Dr. Chao graduated from medical school in 2007, 19 years ago.
Does Dr. John Chia-Su Chao do research?
Dmand AI links 8 publications to Dr. Chao, published from 2013 to 2021. Dr. Chao has worked on 1 clinical trial.
Who does Dr. John Chia-Su Chao publish with?
Dr. Chao's most frequent co-authors are Rahul Banerjee, MD (2 shared papers), John An Kuang Chao, MD (2 shared papers) and Ryan Metri Taylor, MD (2 shared papers).
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