Doctor profile · Federal record
Dr. William Tseng, MD
Internal Medicine Physician (CMS: Hospitalist) · San Diego, CA
- NPI 1093874752
- Accepts Medicare
- 30 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4647 Zion Ave
San Diego, CA 921202507
(619) 528-5000
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- December 1, 2021
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A68201
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1093874752. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
252
Distinct HCPCS
2
Medicare allowed
$21,974
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
91320 |
Sarscv2 vac 30mcg trs-suc im | 129 | 129 | $128 | |
90480 |
Admn sarscov2 vacc 1 dose | 123 | 123 | $44 |
In context: peer comparison
Among 193 peers in this city , average services per provider: 141. This provider delivers 1.8× the peer median.Open Payments
Industry payments received
All-time total
$37
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Baxter Healthcare | 1 | $37.32 |
By nature of payment
Frequently asked questions
What is Dr. William Tseng's medical specialty?
Dr. William Tseng practices Internal Medicine Physician in San Diego, CA.
Where does Dr. William Tseng practice?
Dr. William Tseng practices at 4647 Zion Ave, San Diego, CA 921202507. Office phone: 6195285000.
What is Dr. William Tseng's NPI?
Dr. William Tseng's National Provider Identifier (NPI) is 1093874752, issued by NPPES.
Does Dr. William Tseng accept Medicare assignment?
Yes. Dr. William Tseng accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Tseng commonly perform?
Top Medicare-reported procedures in 2023: Sarscv2 vac 30mcg trs-suc im (HCPCS 91320); Admn sarscov2 vacc 1 dose (HCPCS 90480). Source: CMS Medicare Physician & Other Practitioners file.