Peter Tien, OD
- Part D claims, 2024
- 66
- Industry payments
- $127
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Practice address
- 625 S Fair Oaks Ave, Pasadena, CA 91105
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Huntington Ambulatory Surgery Center - HOPD
Acute Care Hospital outpatient department · Pasadena, California
Find Peter Tien'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.
Peter Tien is an optometrist in Pasadena, California
Peter Tien practices at Huntington Ambulatory Surgery Center - HOPD in Pasadena, California.
Peter Tien's NPI, 1710339114, was assigned on July 8, 2016. Peter Tien holds California license 33489.
- NPI
- 1710339114NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082009634
- NPI enumeration date
- July 8, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Peter Tien practices at Huntington Ambulatory Surgery Center - HOPD in Pasadena, California
Peter Tien's primary practice is Huntington Ambulatory Surgery Center - HOPD, at 625 S Fair Oaks Ave, Pasadena, CA 91105.
- Huntington Ambulatory Surgery Center - HOPD625 S Fair Oaks Ave, Pasadena, CA 91105
Source: Dmand AI Affiliation Data
Peter Tien is affiliated with 2 sites of care and 1 medical group
Peter Tien's primary practice is Huntington Ambulatory Surgery Center - HOPD in Pasadena, California. Dmand AI also links Peter Tien to 1 group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Peter Tien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Peter Tien practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Huntington Ambulatory Surgery Center - HOPD | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Peter Tien is one of 7,206 optometrists in California
Optometrist is Peter Tien's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Peter Tien is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Peter Tien
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
Peter Tien's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Peter Tien's median patient age at 71, with 57% women.
Peter Tien'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
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
Peter Tien wrote 66 Medicare Part D claims in 2024
In 2024, Peter Tien wrote 66 Medicare Part D claims for 19 patients. 70% of them were for generic drugs.
Peter Tien's Part D claims by kind of drug, 2024
- Generic46 claims70%
- Brand-name20 claims30%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Peter Tien takes part in Medicare
Peter Tien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Peter Tien received $127 in industry payments in 2025
CMS Open Payments shows 1 general payment to Peter Tien from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $127.
Companies that paid Peter Tien the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Peter Tien'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Peter Tien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Peter Tien's NPI number?
Peter Tien's NPI number is 1710339114. It was assigned on July 8, 2016, and it is active in the NPI Registry.
What does Peter Tien specialize in?
Peter Tien is an optometrist in Pasadena, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Peter Tien practice?
Peter Tien practices at 625 S Fair Oaks Ave, Pasadena, CA 91105. Peter Tien's primary practice is Huntington Ambulatory Surgery Center - HOPD in Pasadena, California. Dmand AI also links Peter Tien to 1 group practice or clinic and 1 medical group.
What is Peter Tien's medical license number?
Peter Tien holds California license 33489.
Does Peter Tien accept Medicare?
Yes. CMS lists Peter Tien as accepting Medicare assignment.
Has Peter Tien received payments from drug or device companies?
CMS Open Payments shows $127 in general payments to Peter Tien from 1 company from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Peter Tien been practicing?
Peter Tien graduated from medical school in 2016, 10 years ago.
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