Physician Profile
William W. Tseng, M.D.
Unclaimed ProfileAbout Dr. Tseng
William W. Tseng, M.D. is a healthcare provider in Arcadia, CA specializing in surgical oncology. William trained at Northwestern University Feinberg Medical School, graduating in 2004. William is also listed as specializing in surgery and surgery of the hand. According to Medicare claims data, William cared for 79 Medicare patients across 102 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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (626) 218-9840
- Email not available
Practice Locations
301 W HUNTINGTON DR STE 400
Arcadia, CA 91007
Procedures Most Often Billed to Medicare
102 services · 79 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
74 |
| 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 |
28 |
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.
Related specialists at this location 1
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.
Trained at Northwestern University Feinberg Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 2004 at Northwestern University Feinberg Medical School 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Tseng?
Dr. Tseng is a surgical oncology in Arcadia, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “SURGICAL ONCOLOGY”.
NPI registry
What is Dr. Tseng's address?
Dr. Tseng is listed at 301 W HUNTINGTON DR STE 400, Arcadia, CA 91007. 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. Tseng?
The number on file is (626) 218-9840. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Tseng's NPI number?
Dr. Tseng's National Provider Identifier is 1417071242. 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. Tseng train?
Dr. Tseng attended Northwestern University Feinberg Medical School, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Tseng been practicing?
Dr. Tseng has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Tseng perform?
According to Medicare billing data, Dr. Tseng the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Tseng confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tseng. 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.