Dr. Brian Myung Chang, MD
- Medicare services, 2024
- 2,068
- Medicare patients, 2024
- 446
- Part D claims, 2024
- 2,135
- MIPS score, 2024
- 89
- Industry payments
- $1,728
- Practice address
- 270 S Candy Ln, Cottonwood, AZ 86326
- Practice phone
- Call (928) 634-4202
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southwestern Eye Center-Cottonwood Optical
Cottonwood, Arizona
Find Dr. 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.
Dr. Brian Myung Chang is a glaucoma specialist (ophthalmology) physician in Cottonwood, Arizona
Dr. Chang practices at Southwestern Eye Center-Cottonwood Optical in Cottonwood, Arizona.
Dr. Chang's NPI, 1700879343, was assigned on August 30, 2005. Dr. Chang graduated from Emory University School of Medicine in 1997. Dr. Chang holds Arizona license 34356.
- NPI
- 1700879343NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658314455
- NPI enumeration date
- August 30, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (928) 634-4202
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Myung Chang practices at Southwestern Eye Center-Cottonwood Optical in Cottonwood, Arizona
Dr. Chang's primary practice is Southwestern Eye Center-Cottonwood Optical, at 270 S Candy Ln, Cottonwood, AZ 86326 in Yavapai County. The practice phone is (928) 634-4202.
- Southwestern Eye Center-Cottonwood Optical270 S Candy Ln, Cottonwood, AZ 86326 · Yavapai CountyPhone(928) 634-4202
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Brian Myung Chang is affiliated with 3 sites of care and 2 medical groups
Dr. Chang's primary practice is Southwestern Eye Center-Cottonwood Optical in Cottonwood, Arizona. Dmand AI also links Dr. Chang to 2 medical groups, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian Myung Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southwestern Eye Center-Cottonwood Optical | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian Myung Chang is one of 15 glaucoma specialist (ophthalmology) physicians in Arizona
Glaucoma specialist is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207WX0009X. Dr. Chang is licensed in Arizona.
Specialties and state licenses
- Glaucoma specialist (ophthalmology), ArizonaPrimary
Glaucoma specialist (ophthalmology) physicians near Dr. Chang
Counts of glaucoma specialist (ophthalmology) physicians 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
Dr. Brian Myung Chang billed Medicare for 2,068 services in 2024
CMS data shows 2,068 Medicare services from Dr. Chang across 18 procedure codes in 2024, for 446 Medicare patients. Medicare paid $203,351 for them.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 8162024: 89410%
- Office and hospital visits
- 2023: 5582024: 65317%
- Surgery
- 2023: 4282024: 47812%
- Imaging
- 2023: 242024: 4379%
Where Dr. Chang's Medicare services took place, 2024
- In an office1,59077%
- In a facility47823%
Dr. Chang compared with the Arizona median for glaucoma specialist (ophthalmology) physicians, 2024
- Dr. Chang
- Arizona median
- Medicare services
- 2,068vs 2,64522% below
- Medicare patients
- 446vs 73539% below
- Part D claims
- 2,054vs 3,30138% below
Medians across 15 glaucoma specialist (ophthalmology) physicians in Arizona with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other glaucoma specialist (ophthalmology) physicians in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian Myung Chang treated 446 Medicare patients in 2024, average age 77
CMS counts 446 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 202 patients. 72% of them have high cholesterol, and 66% have high blood pressure. 7% are also on Medicaid. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 76, with 54% women.
Dr. Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chang's Medicare patients by sex, 2024
- Women25958%
- Men18742%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High cholesterol72%
- High blood pressure66%
- Arthritis38%
- Diabetes21%
- Ischemic heart disease21%
- Chronic kidney disease19%
- Anxiety17%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. 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 76
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Myung Chang wrote 2,135 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 2,135 Medicare Part D claims for 536 patients. 65% of them were for generic drugs. CMS names the drug for 2,054 of them, across 14 drugs with 11 or more claims each, at $169,330 in total drug cost. In 2023, CMS named 1,924 claims across 16 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic1,387 claims65%
- Brand-name748 claims35%
Dr. Chang's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,9242024: 2,0547%
Drugs named by CMS: 14 in 2024, 16 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Brian Myung Chang scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Chang for performance year 2024, reported as part of a group. Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 308 procedures of cataract surgery by Dr. Chang, more than 90% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Chang's MIPS scores, performance year 2024
- 89of 100Final score
- 84.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chang ranks in Medicare procedure volume
- Cataract surgery
- 90th percentile308 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Brian Myung Chang received $1,728 in industry payments from 2016 to 2025
CMS Open Payments shows 80 general payments to Dr. Chang from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Aerie Pharmaceuticals, Inc. paid the most, $244.
General payments to Dr. Chang by program year, 2016 to 2025
Companies that paid Dr. Chang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Brian Myung Chang graduated from Emory University School of Medicine
Dr. Chang graduated from Emory University School of Medicine in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Myung 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 DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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)Clinician Public Reporting: Overall MIPS Performance (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 Dr. Brian Myung 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 Dr. Brian Myung Chang's NPI number?
Dr. Brian Myung Chang's NPI number is 1700879343. It was assigned on August 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Myung Chang?
Dr. Brian Myung Chang is a glaucoma specialist (ophthalmology) physician in Cottonwood, Arizona. The primary specialty in the NPI Registry is Glaucoma Specialist (Ophthalmology) Physician (taxonomy code 207WX0009X).
Where does Dr. Brian Myung Chang practice?
Dr. Chang practices at 270 S Candy Ln, Cottonwood, AZ 86326. Dr. Chang's primary practice is Southwestern Eye Center-Cottonwood Optical in Cottonwood, Arizona. Dmand AI also links Dr. Chang to 2 medical groups, 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. Brian Myung Chang's office phone number?
The practice phone on file for Dr. Chang is (928) 634-4202.
What is Dr. Brian Myung Chang's medical license number?
Dr. Chang holds Arizona license 34356.
Does Dr. Brian Myung Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 2,068 services in 2024, and Dr. Chang accepts Medicare assignment.
What is Dr. Brian Myung Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Brian Myung Chang see?
CMS counts 446 Medicare patients who saw Dr. Chang in 2024, with an average age of 77.
What services does Dr. Brian Myung Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, established patient (99213), eye exam or test (92136) and surgery: eye (66984).
Where did Dr. Brian Myung Chang go to medical school?
Dr. Chang graduated from Emory University School of Medicine in 1997.
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What drugs does Dr. Brian Myung Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Latanoprost, Timolol Maleate and Ketorolac Tromethamine.
Has Dr. Brian Myung Chang received payments from drug or device companies?
CMS Open Payments shows $1,728 in general payments to Dr. Chang from 24 companies from 2016 to 2025. The largest total came from Aerie Pharmaceuticals, Inc.
How long has Dr. Brian Myung Chang been practicing?
Dr. Chang graduated from medical school in 1997, 29 years ago.
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