Matty Chang, OD
- Medicare patients, 2024
- 52
- Part D claims, 2024
- 34
- Industry payments
- $482
- Affiliated sites
- 2
- State license
- 1
- Practice address
- 3511 W Olympic Blvd, Los Angeles, CA 90019
- Practice phone
- Call (323) 766-1057
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jung Medical Center
Los Angeles, California
Find Matty 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.
Matty Chang is an optometrist in Los Angeles, California
Matty Chang practices at Jung Medical Center in Los Angeles, California.
Matty Chang's NPI, 1770502296, was assigned on July 18, 2006. Matty Chang graduated from Southern California College of Optometry in 2003. Matty Chang holds California license 12280T.
- NPI
- 1770502296NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547213266
- NPI enumeration date
- July 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (323) 766-1057
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Matty Chang practices at Jung Medical Center in Los Angeles, California
Matty Chang's primary practice is Jung Medical Center, at 3511 W Olympic Blvd, Los Angeles, CA 90019 in Los Angeles County. The practice phone is (323) 766-1057.
- Jung Medical Center3511 W Olympic Blvd, Los Angeles, CA 90019 · Los Angeles CountyPhone(323) 766-1057
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Matty Chang is affiliated with 3 sites of care
Matty Chang's primary practice is Jung Medical Center in Los Angeles, California. Dmand AI also links Matty Chang to 2 physician offices, 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 Matty Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Matty Chang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jung Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Matty Chang is one of 7,206 optometrists in California
Optometrist is Matty Chang's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Matty Chang is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Matty 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
Matty Chang treated 52 Medicare patients in 2024, average age 78
CMS counts 52 Medicare patients who saw Matty Chang in 2024. The largest group is 75 to 84, with 31 patients. 75% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Matty Chang's median patient age at 73, with 61% women.
Matty Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Matty Chang's Medicare patients by sex, 2024
- Women3058%
- Men2242%
Chronic conditions among Matty Chang's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
- Arthritis48%
- Diabetes33%
- Ischemic heart disease29%
Share of Medicare patients with each condition. A patient can have several.
Matty 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 73
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Matty Chang wrote 34 Medicare Part D claims in 2024
In 2024, Matty Chang wrote 34 Medicare Part D claims for 15 patients. 62% of them were for generic drugs.
Matty Chang's Part D claims by kind of drug, 2024
- Generic21 claims62%
- Brand-name13 claims38%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Matty Chang takes part in Medicare
Matty 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)
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.
Matty Chang received $482 in industry payments in 2025
CMS Open Payments shows 5 general payments to Matty Chang 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, $262.
Companies that paid Matty Chang the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Matty Chang graduated from Southern California College of Optometry
Matty Chang graduated from Southern California College of Optometry in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Matty 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) |
| 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) |
| 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 Matty 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 Matty Chang's NPI number?
Matty Chang's NPI number is 1770502296. It was assigned on July 18, 2006, and it is active in the NPI Registry.
What does Matty Chang specialize in?
Matty Chang is an optometrist in Los Angeles, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Matty Chang practice?
Matty Chang practices at 3511 W Olympic Blvd, Los Angeles, CA 90019. Matty Chang's primary practice is Jung Medical Center in Los Angeles, California. Dmand AI also links Matty Chang to 2 physician offices.
What is Matty Chang's office phone number?
The practice phone on file for Matty Chang is (323) 766-1057.
What is Matty Chang's medical license number?
Matty Chang holds California license 12280T.
Does Matty Chang accept Medicare?
Yes. CMS lists Matty Chang as accepting Medicare assignment.
How many Medicare patients does Matty Chang see?
CMS counts 52 Medicare patients who saw Matty Chang in 2024, with an average age of 78.
Where did Matty Chang go to medical school?
Matty Chang graduated from Southern California College of Optometry in 2003.
Has Matty Chang received payments from drug or device companies?
CMS Open Payments shows $482 in general payments to Matty Chang from 2 companies from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Matty Chang been practicing?
Matty Chang graduated from medical school in 2003, 23 years ago.
Selling to optometrist practices?
See optometrists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card