Physician Profile
Tonya W. An, MD
Unclaimed ProfileAbout Dr. An
Based in Stanford, CA, Tonya W. An, MD is listed in the NPI registry under orthopedic surgery. Tonya graduated from Washington University School of Medicine in 2016. Tonya is also listed as specializing in orthopaedic foot & ankle surgery and orthopaedic surgery. Medicare claims data shows Tonya provided 1,072 services to 660 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (650) 723-4000
- Email not available
Practice Locations
300 PASTEUR DR
Stanford, CA 94305
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
- Arthritis
- Carpal Tunnel Syndrome
- Rotator cuff tear
- Sciatica
- Torn Achilles tendon
- Torn ACL
- Torn meniscus
Elbow, hand, and wrist
- Broken Wrist
- Golfer's Elbow
- Pinched Nerve in Elbow
- Tennis Elbow
- Trigger Finger
Foot and ankle
- Broken Ankle
- Plantar Fasciitis
- Sprained Ankle
Hip
Shoulder
- Broken Collarbone
- Frozen Shoulder
- Shoulder Impingement
- Dislocated joint
Sports and soft tissue
Trauma and bone
Foot & Ankle
- Bunions
Spine
- Herniated Disc
- Scoliosis
- Spinal Stenosis
Procedures & services
Most searched procedures
- Achilles tendon repair
- ACL reconstruction
- Carpal tunnel surgery
- Hip replacement
- Knee replacement
Evaluation and nonsurgical
- Cast Application
Arthroscopy
- Hip Arthroscopy
- Rotator Cuff Surgery
- Shoulder Scope
Foot & Ankle
- Ankle Ligament Surgery
- Hammertoe Surgery
Foot and ankle
- Ankle Fusion Surgery
- Ankle Scope
- Bunion Surgery
Hand & Wrist
Hand and upper extremity
- Cubital Tunnel Release
- Dupuytren's Contracture Surgery
- Trigger Finger Surgery
Injections & Non-Surgical
Injections & pain relief
- Cortisone Shot for Joint Pain
Joint replacement
- Partial Knee Replacement
- Reverse Shoulder Replacement
- Revision Joint Replacement
- Shoulder Replacement
Knee
Shoulder surgery
- Shoulder labrum repair
Trauma & Fractures
Trauma and fixation
- Broken Bone Surgery
Procedures Most Often Billed to Medicare
1,072 services · 660 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Aspiration and/or injection of fluid from medium joint | Procedure | 20605 |
49 |
| Aspiration and/or injection of fluid from small joint | Procedure | 20600 |
32 |
| Imaging guidance for procedure, 60 minutes or less | Imaging | 76000 |
18 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
324 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
287 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
160 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
100 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
48 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
40 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
14 |
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.
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.
Other orthopedic surgeons in Stanford 8
Same specialty, same city.
Trained at Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 2016 at Washington University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from medium joint 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. An?
Dr. An is an orthopedic surgeon in Stanford, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ORTHOPEDIC SURGERY”.
NPI registry
What is Dr. An's address?
Dr. An is listed at 300 PASTEUR DR, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. An?
The number on file is (650) 723-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. An?
Dr. An's National Provider Identifier is 1699292045. 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 Dr. An train?
Dr. An attended Washington University School of Medicine, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. An have?
Dr. An has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. An perform?
According to Medicare billing data, Dr. An performs procedures including aspiration and/or injection of fluid from medium joint and aspiration and/or injection of fluid from small joint; reads or performs imaging such as imaging guidance for procedure, 60 minutes or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. An's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. An. 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.