Physician Profile
Unclaimed ProfileAbout TJONG
Based in San Francisco, CA, Willy Tjong is listed in the NPI registry under diagnostic radiology. Willy graduated from State University of Ny Upstate Medical University in 2016. According to Medicare claims data, Willy cared for 4,062 Medicare patients across 4,411 services.
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 is Dr. Tjong's specialty?
Dr. Tjong is a diagnostic radiology in San Francisco, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Where can I find Dr. Tjong?
Dr. Tjong is listed at 450 STANYAN ST, San Francisco, CA 94117. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Tjong?
The number on file is (415) 750-5770. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Tjong's NPI number?
Dr. Tjong's National Provider Identifier is 1831544196. 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
What is Dr. Tjong's medical education?
Dr. Tjong attended State University of Ny Upstate Medical University, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Tjong been practising?
Dr. Tjong has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Tjong known for?
According to Medicare billing data, Dr. Tjong performs imaging including x-ray of chest, 1 view and ct scan head or brain without contrast; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Tjong confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tjong. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (415) 750-5770
- Email not available
Practice Locations
450 STANYAN ST
San Francisco, CA 94117
Procedures Most Often Billed to Medicare
4,411 services · 4,062 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| X-ray of chest, 1 view | Imaging | 71045 |
1,443 |
| Ct scan head or brain without contrast | Imaging | 70450 |
439 |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
391 |
| X-ray of chest, 2 views | Imaging | 71046 |
186 |
| Ct scan of abdomen and pelvis without contrast | Imaging | 74176 |
171 |
| Ct scan of chest without contrast | Imaging | 71250 |
165 |
| Ct scan of chest with contrast | Imaging | 71260 |
164 |
| X-ray of hip, 2-3 views | Imaging | 73502 |
132 |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
123 |
| X-ray of knee, 3 views | Imaging | 73562 |
105 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other diagnostic radiology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
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 diagnostic radiology specialists in San Francisco 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at State University of Ny Upstate Medical University 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at State University of Ny Upstate Medical University 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 1 view 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.