Esther Chiu, OD
- Medicare patients, 2024
- 27
- Part D claims, 2024
- 57
- Industry payments
- $38
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 111 E 4th St, Alton, IL 62002
- Practice phone
- Call (830) 896-2600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aeg Texas Professional
Alton, Illinois
Find Esther Chiu'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.
Esther Chiu is an optometrist in Alton, Illinois
Esther Chiu practices at Aeg Texas Professional in Alton, Illinois.
Esther Chiu's NPI, 1215602867, was assigned on August 14, 2021. Esther Chiu holds Texas license 10382.
- NPI
- 1215602867NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365849502
- NPI enumeration date
- August 14, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (830) 896-2600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Esther Chiu practices at Aeg Texas Professional in Alton, Illinois
Esther Chiu's primary practice is Aeg Texas Professional, at 111 E 4th St, Alton, IL 62002 in Madison County. The practice phone is (830) 896-2600.
- Aeg Texas Professional111 E 4th St, Alton, IL 62002 · Madison CountyPhone(830) 896-2600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Esther Chiu is affiliated with 2 sites of care and 1 medical group
Esther Chiu's primary practice is Aeg Texas Professional in Alton, Illinois. Dmand AI also links Esther Chiu to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Esther Chiu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Esther Chiu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aeg Texas Professional | 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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Esther Chiu is one of 2,194 optometrists in Illinois
Optometrist is Esther Chiu's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Esther Chiu is licensed in Texas.
Specialties and state licenses
- Optometrist, TexasPrimary
Optometrists near Esther Chiu
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
Esther Chiu treated 27 Medicare patients in 2024, average age 73
CMS counts 27 Medicare patients who saw Esther Chiu in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.81, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Esther Chiu's median patient age at 52, with 58% women.
Chronic conditions among Esther Chiu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
Share of Medicare patients with each condition. A patient can have several.
Esther Chiu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Esther Chiu wrote 57 Medicare Part D claims in 2024
In 2024, Esther Chiu wrote 57 Medicare Part D claims for 30 patients. 30% of them were for generic drugs.
Esther Chiu's Part D claims by kind of drug, 2024
- Generic17 claims30%
- Brand-name40 claims70%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Esther Chiu takes part in Medicare
Esther Chiu 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)
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Esther Chiu received $38 in industry payments in 2025
CMS Open Payments shows 1 general payment to Esther Chiu from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Harrow Eye, LLC paid the most, $38.
Companies that paid Esther Chiu 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 Esther Chiu'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (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 Esther Chiu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Esther Chiu's NPI number?
Esther Chiu's NPI number is 1215602867. It was assigned on August 14, 2021, and it is active in the NPI Registry.
What does Esther Chiu specialize in?
Esther Chiu is an optometrist in Alton, Illinois. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Esther Chiu practice?
Esther Chiu practices at 111 E 4th St, Alton, IL 62002. Esther Chiu's primary practice is Aeg Texas Professional in Alton, Illinois. Dmand AI also links Esther Chiu to 1 group practice or clinic and 1 medical group.
What is Esther Chiu's office phone number?
The practice phone on file for Esther Chiu is (830) 896-2600.
What is Esther Chiu's medical license number?
Esther Chiu holds Texas license 10382.
Does Esther Chiu accept Medicare?
Yes. CMS lists Esther Chiu as accepting Medicare assignment.
How many Medicare patients does Esther Chiu see?
CMS counts 27 Medicare patients who saw Esther Chiu in 2024, with an average age of 73.
Has Esther Chiu received payments from drug or device companies?
CMS Open Payments shows $38 in general payments to Esther Chiu from 1 company from 2025 to 2025. The largest total came from Harrow Eye, LLC.
How long has Esther Chiu been practicing?
Esther Chiu graduated from medical school in 2021, 5 years ago.
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