Registry data as of Aug 27, 2026

Moonyoung Chung, M.D.

Ophthalmology Physician · Saginaw, MI

Moonyoung Chung, M.D. is an ophthalmology physician with a practice address in Saginaw, Michigan, and NPI 1689685463, issued on Aug 10, 2006. Check the license (Michigan 4301067674, as entered in NPPES) on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1689685463
Name
Moonyoung Chung
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
4301067674 MI
Self-reported in NPPES; status is on the state search
Practice location
2393 Schust RD, Saginaw, MI 48603
Phone
(989) 793-2820
Enumerated
Aug 10, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2393 Schust RD

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

  1. Donald Darnell, ODOptometrist1306839535
  2. Brian Dudenhoefer, MDOphthalmology Physician1518961556
  3. Richard Kaiserman, MDOphthalmology Physician1629061841
  4. Michael Mesaros, MDOphthalmology Physician1992790703
  5. John Ogrady, MDOphthalmology Physician1114911351
  6. Majed Sahouri, MDOphthalmology Physician1477546240

Verify Moonyoung Chung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine
    Search for license 4301067674
    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 Michigan 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.

99% more Medicare Part D claims than the average ophthalmology physician in 2024

3,019 Medicare Part D claims for 896 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. Moonyoung Chung3,019
  2. Specialty average1,518

Most prescribed

  1. Erythromycin637 claims
  2. Latanoprost507 claims
  3. Prednisolone Acetate402 claims
  4. Brimonidine Tartrate247 claims
  5. Restasis161 claims
  6. Doxycycline Hyclate152 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 Medicare quality score for 2023: 77.7 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.

  1. Qualityout of 100 · 30% of the final score71.6
  2. Costout of 100 · 30%60.0
  3. Promoting interoperabilityout of 100 · 25%93.0
  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: $115.43

6 payments, mostly 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.

  1. Moonyoung Chung$115.43
  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. Great Lakes Eye InstituteSaginaw, MI

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

Ophthalmology Physician providers in Michigan

There are 791 ophthalmology physician records in Michigan.

Other ophthalmology physician records in Michigan

  1. Munzer Abdulhak, M.D.Portage, MI1316155864
  2. Gary Abrams, MDDetroit, MI1831136431
  3. James Adams, MDYpsilanti, MI1871501577
  4. Howard Adelson, D.O.Northville, MI1982691739
  5. Todd Adelson, D.ONorthville, MI1124088075
  6. Anju Aggarwal, MDTaylor, MI1053571034
  7. Ashim Aggarwal, M.D.East Lansing, MI1891779286
  8. Himanshu Aggarwal, MDTaylor, MI1356505010
  9. Shareef Ahmed, MDDearborn, MI1770789646
  10. Michelle Akler, MDDearborn, MI1639150899

Common questions

What is Moonyoung Chung, M.D.'s NPI number?

Moonyoung Chung, M.D.'s National Provider Identifier (NPI) is 1689685463, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Moonyoung Chung, M.D. located?

The NPPES record lists a practice address at 2393 Schust RD, Saginaw, MI, 48603. Phone: (989) 793-2820. Providers update this record themselves, so call before visiting.

How can I verify Moonyoung Chung, M.D.'s license?

NPPES lists Michigan license number 4301067674, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Moonyoung Chung, M.D. prescribe under Medicare Part D?

In 2024, Moonyoung Chung, M.D. had 3,019 Medicare Part D claims for 896 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Moonyoung Chung, M.D.'s Medicare quality score?

The 2023 MIPS final score is 77.7 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), loaded Aug 27, 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) 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 27, 2026.