Doctor profile · NPI 1477617025
Tony L Chien
Orthopedic Surgery
Practice locations
- 1157 Maple St , Farmington, MO 63640Call 5736641347
- 1204 Telegraph Rd , Saint Louis, MO 63125Call 3146312003
- 1349 Us Hwy 61 , Festus, MO 63028Call 6367789342
- 401 S Henry St , Farmington, MO 63640Call 5737565376
- 4359 Taft Ave , Saint Louis, MO 63116Call 3147522022
- 508 N Washington St , Farmington, MO 63640Call 5737568140
- 607 N Sparta St , Steeleville, IL 62288Call 6189653121
- 615 Rancho Ln , Florissant, MO 63031Call 3148392150
- 783 Weber Rd , Farmington, MO 63640Call 6367789342
Training in the source record
- Credential
- DO
- Medical school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville
- Graduation year
- 1998
Residency, fellowship and board certification are not supplied by this CMS file.
Before you book
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Ask who will review your records and follow up if your concerns remain unresolved.
View the NPI Registry recordCMS measures of specific care
These are 2024 results reported for this clinician’s NPI. Each CMS rating describes one measure of care, not patient reviews or an overall doctor grade. The patients, ages and insurance types included depend on the measure and collection method; these are not necessarily Medicare-only or pediatric results. They do not establish performance at a particular current practice.
No individual clinical measures approved by CMS for profile display are available for this doctor in this release. Missing results do not mean poor care. Many clinicians or measures are not publicly reported.
Released 2026-09-10. Only CMS display-approved MIPS and QCDR clinical measures are shown; participation attestations and cost measures are excluded. CMS uses a benchmark drawn from best performers covering at least 10% of the relevant patient population, with an adjustment for small denominators. ModernDoc has not independently validated these ratings. Source data and reported rates · CMS rating methodology · Coverage and reporting limits.
Reported procedure activity
CMS attributes these procedures to this clinician through Original Medicare and Medicare Advantage claims and encounters. Counts span locations and are not unique-patient counts. They do not establish quality, current availability, or that a procedure is offered at any practice listed here. Other insurance populations are not included.
- Knee replacement
- 1–10 procedures · exact count withheld for privacy
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 1–10 procedures · exact count withheld for privacy
CMS release 2026-10-15. CMS describes a 12-month observation window with a three-month claims-processing lag; this file does not provide exact start and end dates. Only categories CMS marks for profile display are shown. Source data · How CMS reports procedures.
Patient experience at affiliated groups
No group survey results are linked in this release. Missing information is not a judgment about this doctor’s care.
CMS group survey year 2024 · Released 2026-09-10. View the source data · How CMS reports these measures.
Reconciled from 9 source records. Individual patient reviews and an overall clinical-quality rating are not available.