Tony L. Chien, D.O.
Orthopaedic Surgery Physician · Saint Louis, MO
Tony L. 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 (Missouri 2008016777, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Tony L. Chien
- Credential
- D.O.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- 2008016777 MO
10081 ND
Self-reported in NPPES; status is on the state search - Practice location
- 2821 N Ballas RD Ste C20, Saint Louis, MO 63131
- Phone
- (636) 778-9341
- Enumerated
- Dec 20, 2006
- Record last updated
- Dec 21, 2023
- Fax
- (636) 778-9342
- Medicaid ID
- 1477617025 MO
- Medicare enrollment
- Enrolled (PECOS I20080925000291); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1998
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 514 in Missouri → Look up another NPI →
Verify Tony L. Chien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2008016777Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20.1 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 346 among the 16,516 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.
Tony L. Chien among 514 orthopaedic surgery physician records in Missouri
Tony L. Chien, D.O. is one of 514 orthopaedic surgery physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 53% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1998 · median 2006 among the 302 with a school on file
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Missouri
There are 514 orthopaedic surgery physician records in Missouri.
All 514 in Missouri → Every provider in Saint Louis → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- James Burke, M.D.Saint Louis, MO 631311841292703
- Richard Hulsey, M.D.Saint Louis, MO 631311386645794
- Robert Kramer, M.D.Saint Louis, MO 631311295888436
- Shawn Kutnik, M.D.Saint Louis, MO 631311700032851
- Robert Lander, M.D.Saint Louis, MO 631311689727851
- Christopher Mudd, M.D.Saint Louis, MO 631311518161355
- Michael Nogalski, M.D.St Louis, MO 631311326049636
- Frank Petkovich, M.D.Saint Louis, MO 631311609827070
Common questions
What is Tony L. Chien, D.O.'s NPI number?
Tony L. 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 L. 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 L. Chien, D.O.'s license?
NPPES lists Missouri license number 2008016777, as entered by the provider. 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 L. Chien, D.O. prescribe under Medicare Part D?
In 2024, Tony L. Chien, D.O. had 6,969 Medicare Part D claims for 464 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.