Dr. Benjamin Chang, MD

  • Garden City, NY
  • Ophthalmologist
NPI1598756793PAC ID9234235631
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Ophthalmic Consultants of Long Island

Garden City, New York

See all 3 affiliations

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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 and contact details
Medicare PAC ID
9234235631
NPI enumeration date
November 4, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(516) 766-2519
Professional email
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Personal email
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Mobile number
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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 Island
    825 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.

Ophthalmic Consultants of Long IslandGarden City, New YorkPrimary
1 group practice or clinicName with a free account1 medical groupName with a free account
See all 3 affiliations for Dr. Chang

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.

EHR by site
SiteEHR vendor and product
Ophthalmic Consultants of Long IslandAvailable with a free account
+1 more site and 1 medical groupAvailable 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 YorkPrimaryLicense 1935731 · 1993 to 2026 · taxonomy 207W00000X
  • Pennsylvania license2021 to 2026
  • Michigan license2021 to 2024

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.

Medicare services, 20246,288
Medicare patients1,500
Paid by Medicare$929,625
Procedure codes24

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.

See all procedures by Dr. Chang

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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.

Medicare patients, 20241,500
Average age76
Average risk score1.12
Also on Medicaid7%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis48%
  4. Diabetes37%
  5. Ischemic heart disease34%
  6. Osteoporosis20%
  7. Cancer19%
  8. 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.

Part D claims, 20241,841
Drugs named by CMS17
Total drug cost$132,449
Part D patients476

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.

See all prescribing by Dr. Chang

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.

Papers1

Dr. Chang's most frequent co-authors

Recent publications by Dr. Chang

See all 1 publications and co-authors

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.

How network discovery works

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

$5Kin total
  • 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.

See all payments to Dr. Chang

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

  1. 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.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in ophthalmologyAmerican Board of 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.

Plan types Dr. Chang accepts, by number of carriers

  1. PPO13
  2. HMO12
  3. Medicare10
  4. POS6
  5. EPO5
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Benjamin Chang's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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).

Show 7 more questionsShow fewer questions

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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