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Dr. Chyi S. Hsieh, MD
NPI1861418188
- Medicare services, 2019
- 26
- Publications
- 3
- Industry payments
- $21
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- MO
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Hsieh's professional email, personal email and mobile number
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Dr. Chyi S. Hsieh is a rheumatologist in Missouri
Dr. Hsieh practices in Missouri.
Dr. Hsieh's NPI, 1861418188, was assigned on July 14, 2006. Dr. Hsieh graduated from Washington University School of Medicine in 1996. Dr. Hsieh holds Missouri license 2005031800.
NPI and contact details
- NPI
- 1861418188NPI Registry (opens in a new tab)
- NPI enumeration date
- July 14, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dmand AI tracks the EHR system at Dr. Chyi S. Hsieh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hsieh practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Hsieh's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Chyi S. Hsieh is one of 136 rheumatologists in Missouri
Rheumatology is Dr. Hsieh's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Hsieh is licensed in Missouri.
Specialties and state licenses
- Rheumatology, MissouriPrimary
Rheumatologists near Dr. Hsieh
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. Chyi S. Hsieh billed Medicare for 26 services in 2019
CMS data shows 26 Medicare services from Dr. Hsieh across 2 procedure codes in 2019. Medicare paid $1,306 for them.
Medicare services, 201926
Paid by Medicare$1,306
Procedure codes2
Dr. Hsieh's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 212019: 2624%
Where Dr. Hsieh's Medicare services took place, 2019
- In an office1246%
- In a facility1454%
Dr. Hsieh compared with the Missouri median for rheumatologists, 2019
- Dr. Hsieh
- Missouri median
- Medicare services
- 26vs 54795% below
Medians across 139 rheumatologists in Missouri with Dmand AI profiles that report each measure.
Dr. Hsieh's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Hsieh?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hsieh and other rheumatologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chyi S. Hsieh's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Hsieh's median patient age at 76, with 100% women.
Dr. Hsieh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
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Dr. Chyi S. Hsieh has 3 publications on record
Dmand AI links 3 papers to Dr. Hsieh, published from 2011 to 2019. Dr. Hsieh's most frequent co-authors are Jason Michael Gauthier, MD, Daniel Kreisel, MD and Alexander S. Krupnick, MD.
Papers3
Years published2011 to 2019
Dr. Hsieh's papers by year, 2011 to 2019
Dr. Hsieh's most frequent co-authors
- Jason Michael Gauthier, MD1 shared paper
- Daniel Kreisel, MD1 shared paper
- Alexander S. Krupnick, MD1 shared paper
Recent publications by Dr. Hsieh
See who Dr. Hsieh researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hsieh 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. Chyi S. Hsieh received $21 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Hsieh from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $21. It also lists 1 research payment totaling $2,946 in 2018.
Companies that paid Dr. Hsieh the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Chyi S. Hsieh graduated from Washington University School of Medicine
Dr. Hsieh graduated from Washington University School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Chyi S. Hsieh'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 |
| 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 Data |
| 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) |
| 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. Chyi S. Hsieh
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. Chyi S. Hsieh's NPI number?
Dr. Chyi S. Hsieh's NPI number is 1861418188. It was assigned on July 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Chyi S. Hsieh?
Dr. Chyi S. Hsieh is a rheumatologist in Missouri. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
What is Dr. Chyi S. Hsieh's medical license number?
Dr. Hsieh holds Missouri license 2005031800.
Does Dr. Chyi S. Hsieh accept Medicare?
Yes. CMS data shows Dr. Hsieh billed Medicare for 26 services in 2019.
What services does Dr. Chyi S. Hsieh bill to Medicare?
In 2019, Dr. Hsieh's most billed Medicare services were hospital inpatient care (99231) and office visit, established patient (99214).
Where did Dr. Chyi S. Hsieh go to medical school?
Dr. Hsieh graduated from Washington University School of Medicine in 1996.
Has Dr. Chyi S. Hsieh received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Dr. Hsieh from 1 company from 2021 to 2021. The largest total came from Amgen Inc.
How long has Dr. Chyi S. Hsieh been practicing?
Dr. Hsieh graduated from medical school in 1996, 30 years ago.
Does Dr. Chyi S. Hsieh do research?
Dmand AI links 3 publications to Dr. Hsieh, published from 2011 to 2019.
Who does Dr. Chyi S. Hsieh publish with?
Dr. Hsieh's most frequent co-authors are Jason Michael Gauthier, MD (1 shared paper), Daniel Kreisel, MD (1 shared paper) and Alexander S. Krupnick, MD (1 shared paper).
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