Tony Chien, D.O.
Orthopaedic Surgery Physician · Saint Louis, MO
Tony Chien, D.O. is an orthopaedic surgery physician with a practice address in Saint Louis, Missouri, and NPI 1477617025, issued on Dec 20, 2006. Check the license on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Tony Chien
- Credential
- D.O.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- Practice location
- 2821 N Ballas RD Ste C20, Saint Louis, MO 63131
- Phone
- (636) 778-9341
- Enumerated
- Dec 20, 2006
- Entity
- Type 1 · individual
Verify Tony Chien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing ArtsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
20.3 times the Medicare Part D claims of the average orthopaedic surgery physician in 2024
6,969 Medicare Part D claims for 464 beneficiaries, against an average of 344 among the 17,387 providers of this specialty who prescribed in Part D. Brand-name drugs were under 1% of claims. 2,815 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen1,793 claims
- Diclofenac Sodium935 claims
- Tizanidine Hcl887 claims
- Celecoxib846 claims
- Tramadol Hcl493 claims
- Gabapentin362 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Orthopaedic Surgery Physician providers in Missouri
There are 578 orthopaedic surgery physician records in Missouri.
Other orthopaedic surgery physician records in Missouri
- Dennis Abernathie, M.D.Columbia, MO1336140946
- Sameh Abolfotouh, MDColumbia, MO1285113423
- Moneer Abouljoud, MDSaint Louis, MO1013654706
- Mark Adams, M.D.Columbia, MO1275526865
- Ajay Aggarwal, M.D.Columbia, MO1417062217
- Ravi Agrawal, MDSaint Louis, MO1962071191
- Thomas Albus, M.D.Saint Peters, MO1114039740
- Alexander Aleem, MDSaint Louis, MO1326369265
- Thomas Aleto, MDColumbia, MO1881673549
- Ashley Ali, M.D.Saint Louis, MO1922340603
Common questions
What is Tony Chien, D.O.'s NPI number?
Tony Chien, D.O.'s National Provider Identifier (NPI) is 1477617025, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tony Chien, D.O. located?
The NPPES record lists a practice address at 2821 N Ballas RD Ste C20, Saint Louis, MO, 63131. Phone: (636) 778-9341. Providers update this record themselves, so call before visiting.
How can I verify Tony Chien, D.O.'s license?
Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tony Chien, D.O. prescribe under Medicare Part D?
In 2024, Tony Chien, D.O. had 6,969 Medicare Part D claims for 464 beneficiaries; the average among orthopaedic surgery physician prescribers was 344. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.