Physician Profile
Tony L. Chien, D.O.
Unclaimed ProfileAbout Dr. Chien
Based in Saint Louis, MO, Tony L. Chien, D.O. is listed in the NPI registry under orthopaedic surgery. Tony graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1998. Medicare claims data shows Tony provided 3,921 services to 929 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg, and subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (636) 778-9341
- Email not available
Practice Locations
2821 N BALLAS RD STE C20
Saint Louis, MO 63131
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Elbow, hand, and wrist
Foot and ankle
Hip
Shoulder
Sports and soft tissue
Trauma and bone
Foot & Ankle
Spine
Procedures & services
Most searched procedures
Evaluation and nonsurgical
Arthroscopy
Foot & Ankle
Foot and ankle
Hand & Wrist
Hand and upper extremity
Injections & Non-Surgical
Injections & pain relief
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
Shoulder surgery
Trauma & Fractures
Trauma and fixation
Procedures Most Often Billed to Medicare
3,921 services · 929 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
398 | More than most peers in Orthopaedic Surgery |
| Injection of trigger points, 3 or more muscles | Procedure | 20553 |
201 | More often than most peers in Orthopaedic Surgery |
| Injection into tendon at attachment to bone or muscle | Procedure | 20551 |
74 | More than most peers in Orthopaedic Surgery |
| Injection of trigger points, 1-2 muscles | Procedure | 20552 |
49 | More often than most peers in Orthopaedic Surgery |
| Aspiration and/or injection of fluid from medium joint | Procedure | 20605 |
22 | As often as other peers in Orthopaedic Surgery |
| Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | Drug given | J0702 |
1,173 | More than most peers in Orthopaedic Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,273 | More than most peers in Orthopaedic Surgery |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
606 | Too few peers to compare |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
80 | More often than most peers in Orthopaedic Surgery |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
33 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other orthopaedic surgeons at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other orthopaedic surgeons in Saint Louis 8
Same specialty, same city.
Trained at At Still University of Health Sciences, College of Osteo Med, Kirksville 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at At Still University of Health Sciences, College of Osteo Med, Kirksville 7
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 7
Providers in MO who bill this service to Medicare most often.
Common questions
What does Tony L. Chien specialize in?
Tony L. Chien is an orthopaedic surgeon in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
Where is Tony L. Chien located?
Tony L. Chien is listed at 2821 N Ballas Rd Ste C20, Saint Louis, MO 63131. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Tony L. Chien's phone number?
The number on file is (636) 778-9341. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Tony L. Chien?
Tony L. Chien's National Provider Identifier is 1477617025. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Tony L. Chien train?
Tony L. Chien attended At Still University of Health Sciences, College of Osteo Med, Kirksville, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Tony L. Chien have?
Tony L. Chien has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What does Tony L. Chien do most often?
According to Medicare billing data, Tony L. Chien performs procedures including aspiration and/or injection of fluid from large joint, injection of trigger points, 3 or more muscles and injection into tendon at attachment to bone or muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Tony L. Chien's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Tony L. Chien. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.