Troy Hajin Chang, OD
- Medicare patients, 2024
- 97
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 3005 W Horizon Ridge Pkwy, Henderson, NV 89052
- Practice phone
- Call (702) 220-9767
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Vegas Vision
Henderson, Nevada
Find Troy Chang'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.
Troy Hajin Chang is an optometrist in Henderson, Nevada
Troy Chang practices at Vegas Vision in Henderson, Nevada.
Troy Chang's NPI, 1891871927, was assigned on October 31, 2006. Troy Chang graduated from Illinois College of Optometry at Chicago in 2000. Troy Chang holds Nevada license 410.
- NPI
- 1891871927NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406871706
- NPI enumeration date
- October 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (702) 220-9767
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Troy Hajin Chang practices at Vegas Vision in Henderson, Nevada
Troy Chang's primary practice is Vegas Vision, at 3005 W Horizon Ridge Pkwy, Henderson, NV 89052 in Clark County. The practice phone is (702) 220-9767.
- Vegas Vision3005 W Horizon Ridge Pkwy, Henderson, NV 89052 · Clark CountyPhone(702) 220-9767
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Troy Hajin Chang is affiliated with 2 sites of care
Troy Chang's primary practice is Vegas Vision in Henderson, Nevada. Dmand AI also links Troy Chang to 1 physician office, 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 Troy Hajin Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Troy Chang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vegas Vision | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Troy Hajin Chang is one of 387 optometrists in Nevada
Optometrist is Troy Chang's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Troy Chang is licensed in Nevada.
Specialties and state licenses
- Optometrist, NevadaPrimary
Optometrists near Troy Chang
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
Troy Hajin Chang treated 97 Medicare patients in 2024, average age 69
CMS counts 97 Medicare patients who saw Troy Chang in 2024. The largest group is 65 to 74, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.55, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Troy Chang's median patient age at 59, with 63% women.
Troy Chang's Medicare patients by age, 2024
Troy Chang's Medicare patients by sex, 2024
- Women6264%
- Men3536%
Chronic conditions among Troy Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Diabetes58%
- Mood disorders52%
- Anxiety49%
- Depression45%
- COPD33%
Share of Medicare patients with each condition. A patient can have several.
Troy Chang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Troy Hajin Chang takes part in Medicare
Troy Chang 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)
Troy Hajin Chang graduated from Illinois College of Optometry at Chicago
Troy Chang graduated from Illinois College of Optometry at Chicago in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Troy Hajin Chang'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) |
| 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) |
| 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 Troy Hajin Chang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Troy Hajin Chang's NPI number?
Troy Hajin Chang's NPI number is 1891871927. It was assigned on October 31, 2006, and it is active in the NPI Registry.
What does Troy Hajin Chang specialize in?
Troy Hajin Chang is an optometrist in Henderson, Nevada. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Troy Hajin Chang practice?
Troy Chang practices at 3005 W Horizon Ridge Pkwy, Henderson, NV 89052. Troy Chang's primary practice is Vegas Vision in Henderson, Nevada. Dmand AI also links Troy Chang to 1 physician office.
What is Troy Hajin Chang's office phone number?
The practice phone on file for Troy Chang is (702) 220-9767.
What is Troy Hajin Chang's medical license number?
Troy Chang holds Nevada license 410.
Does Troy Hajin Chang accept Medicare?
Yes. CMS lists Troy Chang as accepting Medicare assignment.
How many Medicare patients does Troy Hajin Chang see?
CMS counts 97 Medicare patients who saw Troy Chang in 2024, with an average age of 69.
Where did Troy Hajin Chang go to medical school?
Troy Chang graduated from Illinois College of Optometry at Chicago in 2000.
How long has Troy Hajin Chang been practicing?
Troy Chang graduated from medical school in 2000, 26 years ago.
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