Brian Myung Chang, MD
Glaucoma Specialist (Ophthalmology) Physician · Cottonwood, AZ
Brian Myung Chang, MD is a glaucoma specialist (ophthalmology) physician with a practice address in Cottonwood, Arizona, and NPI 1700879343, issued on Aug 30, 2005. Check the license (Arizona 34356, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brian Myung Chang
- Credential
- MD
- Primary taxonomy
- Glaucoma Specialist (Ophthalmology) Physician 207WX0009X
- License number
- 34356 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 270 S Candy LN, Cottonwood, AZ 86326
- Phone
- (480) 892-8400
- Enumerated
- Aug 30, 2005
- Record last updated
- Apr 30, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (480) 892-9533
- Medicare enrollment
- Enrolled (PECOS I20050801000782); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest glaucoma specialist (ophthalmology) physician records → All 17 in Arizona → Look up another NPI →
Also registered at 270 S Candy LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Craig Kuntz, O.D.Optometrist1790778918
Verify Brian Myung Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 34356Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average glaucoma specialist (ophthalmology) physician in 2024
2,135 Medicare Part D claims for 536 beneficiaries, against an average of 3,060 among the 430 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Latanoprost545 claims
- Timolol Maleate366 claims
- Ketorolac Tromethamine212 claims
- Brimonidine Tartrate205 claims
- Prednisolone Acetate192 claims
- Dorzolamide-Timolol160 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 87.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $213.20
10 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 391 providers of this specialty with any payment received $5,284.60 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Barnet Dulaney Perkins Eye Center, PCGlendale, AZ
- Southwestern Eye Center LtdCottonwood, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Myung Chang among 17 glaucoma specialist (ophthalmology) physician records in Arizona
Brian Myung Chang, MD is one of 17 glaucoma specialist (ophthalmology) physician records with a practice address in Arizona. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 94% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated1997 · median 1999 among the 15 with a school on file
- Record last updated2019 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0009X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Glaucoma Specialist (Ophthalmology) Physician providers in Arizona
There are 17 glaucoma specialist (ophthalmology) physician records in Arizona.
All 17 in Arizona → Every provider in Cottonwood → Glaucoma Specialist (Ophthalmology) Physician nationwide →
The 8 glaucoma specialist (ophthalmology) physician records with the nearest ZIP codes
- Thiripurasundari Pugazhendhi, M.D.Tucson, AZ 857231285834812
- Elham GhahariTucson, AZ 857111336704410
- Jeffrey Kay, MDTucson, AZ 857041073601274
- Sunil Deokule, MDYuma, AZ 853641184879082
- Briggs Hoyt, MDGlendale, AZ 853061982232542
- Trenton Bowen, M.D.Gilbert, AZ 852951609220979
- Michael Campion, MDScottsdale, AZ 852541265404503
- John Lewis, MDMesa, AZ 852151851364814
Common questions
What is Brian Myung Chang, MD's NPI number?
Brian Myung Chang, MD's National Provider Identifier (NPI) is 1700879343, issued on Aug 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Brian Myung Chang, MD located?
The NPPES record lists a practice address at 270 S Candy LN, Cottonwood, AZ, 86326. Phone: (480) 892-8400. Providers update this record themselves, so call before visiting.
How can I verify Brian Myung Chang, MD's license?
NPPES lists Arizona license number 34356, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Myung Chang, MD prescribe under Medicare Part D?
In 2024, Brian Myung Chang, MD had 2,135 Medicare Part D claims for 536 beneficiaries; the average among glaucoma specialist (ophthalmology) physician prescribers was 3,060. Part D covers Medicare prescriptions only.
What is Brian Myung Chang, MD's MIPS final score?
The 2023 MIPS final score is 87.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.