Physician Profile
Unclaimed ProfileAbout CHEN
Based in San Francisco, CA, James L Chen, M.D., MPH is listed in the NPI registry under orthopedic surgery. James graduated from University of California, Davis School of Medicine in 2006. James is also listed as specialising in orthopaedic sports medicine.
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
Areas of Expertise
Common questions
What does Dr. Chen specialise in?
Dr. Chen is an orthopedic surgeon in San Francisco, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ORTHOPEDIC SURGERY”.
NPI registry
Where is Dr. Chen located?
Dr. Chen is listed at 450 SUTTER ST SUITE 400, San Francisco, CA 94108. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Chen's phone number?
The number on file is (415) 900-3000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Chen's NPI number?
Dr. Chen's National Provider Identifier is 1306040548. 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. Chen go to medical school?
Dr. Chen attended University of California, Davis School of Medicine, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chen been practising?
Dr. Chen has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Chen do most often?
According to Medicare billing data, Dr. Chen performs procedures including aspiration and/or injection of fluid from large joint; reads or performs imaging such as x-ray of knee, 1-2 views and x-ray of shoulder, minimum of 2 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Chen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chen. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (415) 900-3000
- Email not available
Practice Locations
450 SUTTER ST SUITE 400
San Francisco, CA 94108
Procedures Most Often Billed to Medicare
884 services · 524 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
172 |
| X-ray of knee, 1-2 views | Imaging | 73560 |
46 |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
20 |
| X-ray of knee, 3 views | Imaging | 73562 |
18 |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
94 |
| Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose | Drug given | J7321 |
81 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
201 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
149 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
82 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
21 |
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 San Francisco 8
Same specialty, same city.
Trained at University of California, Davis School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2006 at University of California, Davis School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.