Dr. William F Tong, M.D.
Dr. William F Tong is a General Practice Physician provider (General Practice) practicing in Watsonville, CA, registered in the NPPES registry with NPI 1457354110 since 2005. The credential MD stands for Doctor of Medicine. Practices at Watsonville Doctors on Duty (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1457354110 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. William F Tong |
| Credential | M.D. |
| Sex | Male |
| Practice address | 1505 MAIN ST, Watsonville, CA, 95076 |
| Phone | 8317221444 |
| Fax | 8317224414 |
| Enumeration date | 2005-05-24 |
| Last updated in NPPES | 2010-02-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | Primary | G43285 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: William Tong, M.D. NPI: 1457354110 Taxonomy: 208D00000X (General Practice Physician) Address: 1505 MAIN ST, Watsonville, CA, 95076
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1467459735 | Tye Depena | Individual | Family Medicine Physician | Watsonville, CA |
| 1932158854 | Mark Luoto | Individual | Emergency Medicine Physician | Watsonville, CA |
| 1992980742 | Mercy Rose | Individual | Primary Care Nurse Practitioner | Watsonville, CA |
| 1508151572 | Daniel Johnson | Individual | Medical Physician Assistant | Watsonville, CA |
| 1104268937 | Watsonville Doctors on Duty | Organization | Non-Pharmacy Dispensing Site | Watsonville, CA |
| 1164181848 | Alejandro Alvarez-Bautista | Individual | Physician Assistant | Watsonville, CA |
| 1750189650 | Emma Eccles | Individual | Physician Assistant | Watsonville, CA |
Verify this record
Cross-check NPI 1457354110 against the authoritative CMS record: view Dr. William F Tong on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What specialty is William Tong?
Is this the official NPI registry?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-02-08.