NPPES file of Aug 9, 2026

Yuna Park, MD

Emergency Medicine Physician · Corona, CA

Yuna Park, MD is an emergency medicine physician with a practice address in Corona, California, and NPI 1437785573, issued on Mar 20, 2020. Check the license (California A192707, as entered in NPPES) on the Medical Board of California; 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
1437785573
Name
Yuna Park
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A192707 CA
Self-reported in NPPES; status is on the state search
Practice location
800 S Main St, Corona, CA 92882
Phone
(951) 736-6241
Enumerated
Mar 20, 2020
Record last updated
Oct 7, 2025
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 800 S Main St

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

  1. Charles Addo-Yobo, DOEmergency Medicine Physician1821625955
  2. James Ahn, M.D.Anesthesiology Physician1588641963
  3. Julie Ahn, PA-CPhysician Assistant1346802543
  4. Thomas Assali, DOInternal Medicine Physician1598225062
  5. Cynthia Bailey, P.A.-CPhysician Assistant1316053036
  6. David Bear, M.D.Emergency Medicine Physician1114033883

Verify Yuna Park in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A192707
    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 California license search

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21% more Medicare Part D claims than the average emergency medicine physician in 2024

274 Medicare Part D claims for 194 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 34 claims were for opioids.

  1. Yuna Park274
  2. Specialty average226

Most prescribed

  1. Cephalexin52 claims
  2. Ondansetron Odt20 claims
  3. Oxycodone-Acetaminophen19 claims
  4. Doxycycline Hyclate14 claims
  5. Hydrocodone-Acetaminophen13 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): 85.2 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 score77.9
  2. Costnot scored (reweighted)
  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).

Yuna Park among 7,751 emergency medicine physician records in California

Yuna Park, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 88% of them.

  • NPI issued2020 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2025 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Charles Addo-Yobo, DOCorona, CA 928821821625955
  2. David Bear, M.D.Corona, CA 928821114033883
  3. Neil Bhutwala, DOCorona, CA 928821316500408
  4. James Boyd, M.D.Corona, CA 928821184730855
  5. Joaquin Castillo Marroquin, DOCorona, CA 928821316407323
  6. Louis Chau, M.D.Corona, CA 928821225144918
  7. Nancy Chung, MDCorona, CA 928821275577447
  8. Tam Dang, M.D.Corona, CA 928821275824799

Common questions

What is Yuna Park, MD's NPI number?

Yuna Park, MD's National Provider Identifier (NPI) is 1437785573, issued on Mar 20, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Yuna Park, MD located?

The NPPES record lists a practice address at 800 S Main St, Corona, CA, 92882. Phone: (951) 736-6241. Providers update this record themselves, so call before visiting.

How can I verify Yuna Park, MD's license?

NPPES lists California license number A192707, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Yuna Park, MD prescribe under Medicare Part D?

In 2024, Yuna Park, MD had 274 Medicare Part D claims for 194 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Yuna Park, MD's MIPS final score?

The 2023 MIPS final score is 85.2 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.