Clin Dysmorphol
Dr. Benjamin Chang, MD
- Medicare services, 2024
- 6,288
- Medicare patients, 2024
- 1,500
- Part D claims, 2024
- 1,841
- Publications
- 1
- Industry payments
- $5,004
- Practice address
- 825 E Gate Blvd, Garden City, NY 11530
- Practice phone
- Call (516) 766-2519
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ophthalmic Consultants of Long Island
Garden City, New York
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. Benjamin Chang is an ophthalmologist in Garden City, New York
Dr. Chang practices at Ophthalmic Consultants of Long Island in Garden City, New York.
Dr. Chang's NPI, 1598756793, was assigned on November 4, 2005. Dr. Chang graduated from David Geffen School of Medicine at UCLA in 1989. Dr. Chang holds New York license 1935731.
- NPI
- 1598756793NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234235631
- NPI enumeration date
- November 4, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (516) 766-2519
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Benjamin Chang practices at Ophthalmic Consultants of Long Island in Garden City, New York
Dr. Chang's primary practice is Ophthalmic Consultants of Long Island, at 825 E Gate Blvd, Garden City, NY 11530 in Nassau County. The practice phone is (516) 766-2519.
- Ophthalmic Consultants of Long Island825 E Gate Blvd, Garden City, NY 11530 · Nassau CountyPhone(516) 766-2519
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Benjamin Chang is affiliated with 2 sites of care and 1 medical group
Dr. Chang's primary practice is Ophthalmic Consultants of Long Island in Garden City, New York. Dmand AI also links Dr. Chang to 1 group practice or clinic and 1 medical group, 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 Dr. Benjamin Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ophthalmic Consultants of Long Island | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Benjamin Chang is one of 1,467 ophthalmologists in New York
Ophthalmology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Chang is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Chang's licenses on file in 3 states: New York, Pennsylvania and Michigan.
Specialties and state licenses
- Ophthalmology, New YorkPrimary
- Pennsylvania license
- Michigan license
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, conjunctivitis, dry eye, eyelid inflammation, glaucoma and hereditary corneal conditions among the conditions Dr. Chang treats.
Ophthalmologists near Dr. Chang
Counts of ophthalmologists 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. Benjamin Chang billed Medicare for 6,288 services in 2024
CMS data shows 6,288 Medicare services from Dr. Chang across 24 procedure codes in 2024, for 1,500 Medicare patients. Medicare paid $929,625 for them.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,8622024: 2,04410%
- Office and hospital visits
- 2023: 2,0922024: 1,9576%
- Drugs given in the office
- 2023: 7022024: 1,555122%
- Surgery
- 2023: 6592024: 59410%
- Lab and pathology
- 2023: 1322024: 1385%
Where Dr. Chang's Medicare services took place, 2024
- In an office6,08897%
- In a facility2003%
Dr. Chang compared with the New York median for ophthalmologists, 2024
- Dr. Chang
- New York median
- Medicare services
- 6,288vs 1,2585.0 times
- Medicare patients
- 1,500vs 4363.4 times
- Part D claims
- 1,703vs 6472.6 times
Medians across 1,557 ophthalmologists in New York 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 ophthalmologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Benjamin Chang treated 1,500 Medicare patients in 2024, average age 76
CMS counts 1,500 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 645 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 68, with 56% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women89360%
- Men60740%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Diabetes37%
- Ischemic heart disease34%
- Osteoporosis20%
- Cancer19%
- Chronic kidney disease19%
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 68
Patient panel by sex, all payers
- Women56%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Benjamin Chang wrote 1,841 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 1,841 Medicare Part D claims for 476 patients. 59% of them were for generic drugs. CMS names the drug for 1,703 of them, across 17 drugs with 11 or more claims each, at $132,449 in total drug cost. In 2023, CMS named 1,616 claims across 18 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic1,083 claims59%
- Brand-name758 claims41%
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: 1,6162024: 1,7035%
Drugs named by CMS: 17 in 2024, 18 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. Benjamin Chang ranks in the 86th percentile for cataract surgery in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 230 procedures of cataract surgery by Dr. Chang, more than 86% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chang ranks in Medicare procedure volume
- Cataract surgery
- 86th percentile230 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Benjamin Chang has 1 publication on record
Dmand AI links 1 paper to Dr. Chang in 2024. Dr. Chang's most frequent co-authors are Saumya S. Jamuar, MD and Shazia Khan, MD.
Dr. Chang's most frequent co-authors
Recent publications by Dr. Chang
See who Dr. Chang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chang works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Benjamin Chang received $5,004 in industry payments from 2016 to 2025
CMS Open Payments shows 158 general payments to Dr. Chang from 32 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Johnson & Johnson Surgical Vision, Inc. paid the most, $815.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
- Food and beverage$4,64593%
- Gifts$3597%
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. Benjamin Chang has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chang.
Awards and honors for Dr. Chang
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Benjamin Chang graduated from David Geffen School of Medicine at UCLA
Dr. Chang graduated from David Geffen School of Medicine at UCLA in 1989. Dr. Chang is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Benjamin Chang accepts plans from 23 insurance carriers
Dr. Chang is in network with 23 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Alliant Health Plans
- Aspirus Health Plan
- +15 more carriersWith a free account
Plan types Dr. Chang accepts, by number of carriers
- PPO13
- HMO12
- Medicare10
- POS6
- EPO5
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Benjamin 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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Benjamin 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. Benjamin Chang's NPI number?
Dr. Benjamin Chang's NPI number is 1598756793. It was assigned on November 4, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Benjamin Chang?
Dr. Benjamin Chang is an ophthalmologist in Garden City, New York. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Benjamin Chang practice?
Dr. Chang practices at 825 E Gate Blvd, Garden City, NY 11530. Dr. Chang's primary practice is Ophthalmic Consultants of Long Island in Garden City, New York. Dmand AI also links Dr. Chang to 1 group practice or clinic and 1 medical group.
What is Dr. Benjamin Chang's office phone number?
The practice phone on file for Dr. Chang is (516) 766-2519.
What is Dr. Benjamin Chang's medical license number?
Dr. Chang holds New York license 1935731, one of the licenses on file in 3 states.
Which states has Dr. Benjamin Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in New York (1993 to 2026), Pennsylvania (2021 to 2026) and Michigan (2021 to 2024).
Does Dr. Benjamin Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 6,288 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Benjamin Chang see?
CMS counts 1,500 Medicare patients who saw Dr. Chang in 2024, with an average age of 76.
Is Dr. Benjamin Chang board certified?
Yes. Dr. Chang is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Benjamin Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, established patient (99213), eye exam or test (92134) and eye exam or test (92250).
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Where did Dr. Benjamin Chang go to medical school?
Dr. Chang graduated from David Geffen School of Medicine at UCLA in 1989.
What drugs does Dr. Benjamin Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Prednisolone Acetate, Ofloxacin and Latanoprost.
Has Dr. Benjamin Chang received payments from drug or device companies?
CMS Open Payments shows $5,004 in general payments to Dr. Chang from 32 companies from 2016 to 2025. The largest total came from Johnson & Johnson Surgical Vision, Inc.
How long has Dr. Benjamin Chang been practicing?
Dr. Chang graduated from medical school in 1989, 37 years ago.
Does Dr. Benjamin Chang do research?
Dmand AI links 1 publication to Dr. Chang.
Who does Dr. Benjamin Chang publish with?
Dr. Chang's most frequent co-authors are Saumya S. Jamuar, MD (1 shared paper) and Shazia Khan, MD (1 shared paper).
What insurance does Dr. Benjamin Chang accept?
Dr. Chang is in network with 23 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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