NPPES file of Aug 9, 2026

Sungjun John Hwang, M.D.

Ophthalmology Physician · Canandaigua, NY

Sungjun John Hwang, M.D. is an ophthalmology physician with a practice address in Canandaigua, New York, and NPI 1255334132, issued on May 24, 2005. Check the license (New York 202483, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255334132
Name
Sungjun John Hwang
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
202483 NY
Self-reported in NPPES; status is on the state search
Practice location
325 West St, Canandaigua, NY 14424
Phone
(585) 394-2020
Enumerated
May 24, 2005
Record last updated
Jun 6, 2023
Fax
(585) 394-9261
Medicaid ID
01817225 NY
Medicare enrollment
Enrolled (PECOS I20100329000152); accepts Medicare assignment
Medical or professional school
Warren Alpert Medical School Of Brown University, 1994
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 325 West St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Thomas Andolina, O.D.Optometrist1902800592
  2. Michelle BullockOptician1457864134
  3. Mariateresa Ceravolo, O.D.Optometrist1760471338
  4. Taylor CernigliaOptician1578076261
  5. Jillian DinanOptometrist1316389448
  6. Michael FirlitOptician1427561117

Verify Sungjun John Hwang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 202483
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.5 times the Medicare Part D claims of the average ophthalmology physician in 2024

5,320 Medicare Part D claims for 1,201 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.

  1. Sungjun Hwang5,320
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate1,332 claims
  2. Ketorolac Tromethamine988 claims
  3. Latanoprost964 claims
  4. Ciprofloxacin Hcl634 claims
  5. Dorzolamide-Timolol309 claims
  6. Brimonidine Tartrate259 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): 83.1 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.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%43.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $327.43

14 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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.

  1. Sungjun Hwang$327.43
  2. Specialty average$4,535.02

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

  1. Finger Lakes Ophthalmology, PCCanandaigua, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sungjun John Hwang among 1,822 ophthalmology physician records in New York

Sungjun John Hwang, M.D. is one of 1,822 ophthalmology physician records with a practice address in New York. 79% 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, 84% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1994 · median 1995 among the 1,215 with a school on file
  • Record last updated2023 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in New York

There are 1,822 ophthalmology physician records in New York.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Holly Hindman, M.D.Canandaigua, NY 144241285770602
  2. Christian Klein, M.D.Canandaigua, NY 144241477513794
  3. Heidi Piper, M.D.Canandaigua, NY 144241558364430
  4. Anna Rothstein, M.D.Canandaigua, NY 144241801998109
  5. Arjun Sood, MDCanandaigua, NY 144241487097341
  6. Cecil Haggerty, MDBrockport, NY 144201194828582
  7. David Smith, M.D.Brockport, NY 144201295795979
  8. Ralph Viola, M.D.Fairport, NY 144501306891577

Common questions

What is Sungjun John Hwang, M.D.'s NPI number?

Sungjun John Hwang, M.D.'s National Provider Identifier (NPI) is 1255334132, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Sungjun John Hwang, M.D. located?

The NPPES record lists a practice address at 325 West St, Canandaigua, NY, 14424. Phone: (585) 394-2020. Providers update this record themselves, so call before visiting.

How can I verify Sungjun John Hwang, M.D.'s license?

NPPES lists New York license number 202483, 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 Sungjun John Hwang, M.D. prescribe under Medicare Part D?

In 2024, Sungjun John Hwang, M.D. had 5,320 Medicare Part D claims for 1,201 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Sungjun John Hwang, M.D.'s MIPS final score?

The 2023 MIPS final score is 83.1 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.