Philip Ian Rodriguez Tiamzon, OD
- Industry payments
- $149
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 34806 Yucaipa Blvd, Yucaipa, CA 92399-4235
- Practice phone
- Call (909) 787-0134
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
California Optometric Center
Eye care practice · Yucaipa, California
Find Philip Ian Tiamzon's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Philip Ian Rodriguez Tiamzon is an optometrist in Yucaipa, California
Philip Ian Tiamzon practices at California Optometric Center in Yucaipa, California.
Philip Ian Tiamzon's NPI, 1720669310, was assigned on April 15, 2021. Philip Ian Tiamzon graduated from Southern California College of Optometry in 2022. Philip Ian Tiamzon holds California license 35189.
- NPI
- 1720669310NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799160024
- NPI enumeration date
- April 15, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 787-0134
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Philip Ian Rodriguez Tiamzon practices at California Optometric Center in Yucaipa, California
Philip Ian Tiamzon's primary practice is California Optometric Center, at 34806 Yucaipa Blvd, Yucaipa, CA 92399-4235. The practice phone is (909) 787-0134.
- California Optometric Center34806 Yucaipa Blvd, Yucaipa, CA 92399-4235Phone(909) 787-0134
Source: Dmand AI Affiliation Data
Philip Ian Rodriguez Tiamzon is affiliated with 1 site of care and 1 medical group
Philip Ian Tiamzon's primary practice is California Optometric Center in Yucaipa, California. Dmand AI also links Philip Ian Tiamzon to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Philip Ian Rodriguez Tiamzon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Philip Ian Tiamzon practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| California Optometric Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Philip Ian Rodriguez Tiamzon is one of 7,206 optometrists in California
Optometrist is Philip Ian Tiamzon's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Philip Ian Tiamzon is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Philip Ian Tiamzon
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Philip Ian Rodriguez Tiamzon's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Philip Ian Tiamzon's median patient age at 71, with 54% women.
Philip Ian Tiamzon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
How Philip Ian Rodriguez Tiamzon takes part in Medicare
Philip Ian Tiamzon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
Philip Ian Rodriguez Tiamzon received $149 in industry payments in 2025
CMS Open Payments shows 3 general payments to Philip Ian Tiamzon from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $100.
Companies that paid Philip Ian Tiamzon the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Philip Ian Rodriguez Tiamzon graduated from Southern California College of Optometry
Philip Ian Tiamzon graduated from Southern California College of Optometry in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Philip Ian Rodriguez Tiamzon's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Philip Ian Rodriguez Tiamzon
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Philip Ian Rodriguez Tiamzon's NPI number?
Philip Ian Rodriguez Tiamzon's NPI number is 1720669310. It was assigned on April 15, 2021, and it is active in the NPI Registry.
What does Philip Ian Rodriguez Tiamzon specialize in?
Philip Ian Rodriguez Tiamzon is an optometrist in Yucaipa, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Philip Ian Rodriguez Tiamzon practice?
Philip Ian Tiamzon practices at 34806 Yucaipa Blvd, Yucaipa, CA 92399-4235. Philip Ian Tiamzon's primary practice is California Optometric Center in Yucaipa, California. Dmand AI also links Philip Ian Tiamzon to 1 medical group.
What is Philip Ian Rodriguez Tiamzon's office phone number?
The practice phone on file for Philip Ian Tiamzon is (909) 787-0134.
What is Philip Ian Rodriguez Tiamzon's medical license number?
Philip Ian Tiamzon holds California license 35189.
Does Philip Ian Rodriguez Tiamzon accept Medicare?
Yes. CMS lists Philip Ian Tiamzon as accepting Medicare assignment.
Where did Philip Ian Rodriguez Tiamzon go to medical school?
Philip Ian Tiamzon graduated from Southern California College of Optometry in 2022.
Has Philip Ian Rodriguez Tiamzon received payments from drug or device companies?
CMS Open Payments shows $149 in general payments to Philip Ian Tiamzon from 2 companies from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Philip Ian Rodriguez Tiamzon been practicing?
Philip Ian Tiamzon graduated from medical school in 2022, 4 years ago.
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