Tim C. Liu, OD
- Medicare patients, 2024
- 87
- Part D claims, 2024
- 46
- Industry payments
- $316
- Affiliated sites
- 2
- State license
- 1
- Practice address
- 250 S Grand Ave., Glendora, CA 91741
- Practice phone
- Call (626) 857-3118
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Emanate Health Foothill Presbyterian Hospital - Mammography
Mammography / Breast Imaging Center · Glendora, California
Find Tim Liu'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.
Tim C. Liu is an optometrist in Glendora, California
Tim Liu practices at Emanate Health Foothill Presbyterian Hospital - Mammography in Glendora, California.
Tim Liu's NPI, 1154587210, was assigned on July 29, 2008. Tim Liu graduated from University of California - School of Optometry in 2008. Tim Liu holds California license 13573T.
- NPI
- 1154587210NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254592595
- NPI enumeration date
- July 29, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 857-3118
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Tim C. Liu practices at Emanate Health Foothill Presbyterian Hospital - Mammography in Glendora, California
Tim Liu's primary practice is Emanate Health Foothill Presbyterian Hospital - Mammography, at 250 S Grand Ave., Glendora, CA 91741. The practice phone is (626) 857-3118.
- Emanate Health Foothill Presbyterian Hospital - Mammography250 S Grand Ave., Glendora, CA 91741Phone(626) 857-3118
Source: Dmand AI Affiliation Data
Tim C. Liu is affiliated with 2 sites of care
Tim Liu's primary practice is Emanate Health Foothill Presbyterian Hospital - Mammography in Glendora, California. Dmand AI also links Tim Liu to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Tim C. Liu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Tim Liu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Emanate Health Foothill Presbyterian Hospital - Mammography | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Tim C. Liu is one of 7,206 optometrists in California
Optometrist is Tim Liu's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Tim Liu is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Tim Liu
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
Tim C. Liu treated 87 Medicare patients in 2024, average age 77
CMS counts 87 Medicare patients who saw Tim Liu in 2024. The largest group is 65 to 74, with 34 patients. 75% of them have high cholesterol, and 66% have high blood pressure. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Tim Liu's median patient age at 76, with 70% women.
Tim Liu's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Tim Liu's Medicare patients by sex, 2024
- Women5159%
- Men3641%
Chronic conditions among Tim Liu's Medicare patients, 2024
- High cholesterol75%
- High blood pressure66%
- Arthritis39%
- Ischemic heart disease25%
- Diabetes24%
- Atrial fibrillation21%
- Cancer17%
- Mood disorders16%
Share of Medicare patients with each condition. A patient can have several.
Tim Liu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women70%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Tim C. Liu wrote 46 Medicare Part D claims in 2024
In 2024, Tim Liu wrote 46 Medicare Part D claims for 14 patients. 46% of them were for generic drugs.
Tim Liu's Part D claims by kind of drug, 2024
- Generic21 claims46%
- Brand-name25 claims54%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Tim C. Liu takes part in Medicare
Tim Liu 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)
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Tim C. Liu received $316 in industry payments in 2025
CMS Open Payments shows 10 general payments to Tim Liu from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $294.
Companies that paid Tim Liu the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Tim C. Liu graduated from University of California - School of Optometry
Tim Liu graduated from University of California - School of Optometry in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Tim C. Liu'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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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 Tim C. Liu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Tim C. Liu's NPI number?
Tim C. Liu's NPI number is 1154587210. It was assigned on July 29, 2008, and it is active in the NPI Registry.
What does Tim C. Liu specialize in?
Tim C. Liu is an optometrist in Glendora, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Tim C. Liu practice?
Tim Liu practices at 250 S Grand Ave., Glendora, CA 91741. Tim Liu's primary practice is Emanate Health Foothill Presbyterian Hospital - Mammography in Glendora, California. Dmand AI also links Tim Liu to 1 physician office.
What is Tim C. Liu's office phone number?
The practice phone on file for Tim Liu is (626) 857-3118.
What is Tim C. Liu's medical license number?
Tim Liu holds California license 13573T.
Does Tim C. Liu accept Medicare?
Yes. CMS lists Tim Liu as accepting Medicare assignment.
How many Medicare patients does Tim C. Liu see?
CMS counts 87 Medicare patients who saw Tim Liu in 2024, with an average age of 77.
Where did Tim C. Liu go to medical school?
Tim Liu graduated from University of California - School of Optometry in 2008.
Has Tim C. Liu received payments from drug or device companies?
CMS Open Payments shows $316 in general payments to Tim Liu from 2 companies from 2025 to 2025. The largest total came from Stryker Corporation.
How long has Tim C. Liu been practicing?
Tim Liu graduated from medical school in 2008, 18 years ago.
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