Diane Chang, M.D., PH.D.
Ophthalmology Physician · New York, NY
Diane Chang, M.D., PH.D. is an ophthalmology physician with a practice address in New York, New York, and NPI 1588826168, issued on Jun 25, 2008. Check the license (New York 257294, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Diane Chang
- Credential
- M.D., PH.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 257294 NY
D79306 MD
MT193100 PA
Self-reported in NPPES; status is on the state search - Practice location
- 70 E 10TH St Apt 1F, New York, NY 10003
- Phone
- (212) 673-5650
- Enumerated
- Jun 25, 2008
- Record last updated
- Jul 1, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 094298700 MD
- Medicare enrollment
- Enrolled (PECOS I20150623002765); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2008
- Entity
- Type 1 · individual
Verify Diane Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 257294Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average ophthalmology physician in 2024
788 Medicare Part D claims for 209 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Latanoprost379 claims
- Timolol Maleate80 claims
- Brimonidine Tartrate50 claims
- Prednisolone Acetate43 claims
- Restasis29 claims
- Xiidra21 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): 51.3 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: $314.64
13 payments; by number, the most common kind was food and beverage; the largest payer was Tarsus Pharmaceuticals, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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 one group practice
- Chesapeake Eye Care And Laser Center LLCPrince Frederick, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ophthalmology Physician providers in New York
There are 1,822 ophthalmology physician records in New York.
Other ophthalmology physician records in New York
- Aliaa Abdelhakim Hamed, M.D., PH.D.New York, NY1023404175
- Majida Abdul Gaffar, M.D.Hawthorne, NY1235383928
- David H Abramson, MDNew York, NY1235114026
- Rami Abu Sbeit, M.D.Cooperstown, NY1558056531
- Frank Accardi, MDNew York, NY1336253780
- Jacob Ackerman, MDBrooklyn, NY1710083050
- Jessica Ackert, MDNew York, NY1437301629
- Stephen Adalman, M.D.Kingston, NY1003832726
- Christopher Adam, MDEast Patchogue, NY1962821355
- Anthony Adamis, M.D.New York, NY1104863117
Common questions
What is Diane Chang, M.D., PH.D.'s NPI number?
Diane Chang, M.D., PH.D.'s National Provider Identifier (NPI) is 1588826168, issued on Jun 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Diane Chang, M.D., PH.D. located?
The NPPES record lists a practice address at 70 E 10TH St Apt 1F, New York, NY, 10003. Phone: (212) 673-5650. Providers update this record themselves, so call before visiting.
How can I verify Diane Chang, M.D., PH.D.'s license?
NPPES lists New York license number 257294, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diane Chang, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Diane Chang, M.D., PH.D. had 788 Medicare Part D claims for 209 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Diane Chang, M.D., PH.D.'s MIPS final score?
The 2023 MIPS final score is 51.3 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.