Doctor profile · Federal record

Dr. William on, DDS

Endodontist · Palo Alto, CA

  • NPI 1013562586
  • 7 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
420 Cambridge Ave Ste 5
Palo Alto, CA 943061594
(650) 328-3636

Credentials & registration

NPPES · NUCC
NPI registered
August 2019 — 7 yrs on file
Profile last updated
February 18, 2026
Specialty taxonomy
1223E0200X — NUCC code
State license (1)
California #103641

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013562586. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$125
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Carl Zeiss Meditec USA, INC. 1 $72.94
Dentsply Sirona INC 1 $51.85

By nature of payment

Food and Beverage
$125

Frequently asked questions

Auto-generated from federal data
What is Dr. William on's medical specialty?
Dr. William on practices Endodontist in Palo Alto, CA.
Where does Dr. William on practice?
Dr. William on practices at 420 Cambridge Ave Ste 5, Palo Alto, CA 943061594. Office phone: 6503283636.
What is Dr. William on's NPI?
Dr. William on's National Provider Identifier (NPI) is 1013562586, issued by NPPES.