Doctor profile · Federal record

Dr. Philip Ian Tiamzon, OD

Optometrist · Yucaipa, CA

  • NPI 1720669310
  • 5 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
34806 Yucaipa Blvd
Yucaipa, CA 923994235
(909) 797-0134

Credentials & registration

NPPES · NUCC
NPI registered
April 2021 — 5 yrs on file
Profile last updated
August 8, 2023
Specialty taxonomy
152W00000X — NUCC code
State license (1)
California #35189

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1720669310. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$458
Transactions
14
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Bausch & Lomb Americas INC. 6 $257.25
CooperVision INC. 8 $201.00

By nature of payment

Food and Beverage
$458

Frequently asked questions

Auto-generated from federal data
What is Dr. Philip Ian Tiamzon's medical specialty?
Dr. Philip Ian Tiamzon practices Optometrist in Yucaipa, CA.
Where does Dr. Philip Ian Tiamzon practice?
Dr. Philip Ian Tiamzon practices at 34806 Yucaipa Blvd, Yucaipa, CA 923994235. Office phone: 9097970134.
What is Dr. Philip Ian Tiamzon's NPI?
Dr. Philip Ian Tiamzon's National Provider Identifier (NPI) is 1720669310, issued by NPPES.