NPPES file of Aug 9, 2026

Yoonjie Chung, MD

Family Medicine Physician · Allentown, PA

Yoonjie Chung, MD is a family medicine physician with a practice address in Allentown, Pennsylvania, and NPI 1447720719, issued on Nov 29, 2018. Check the license (Pennsylvania MD475432, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1447720719
Name
Yoonjie Chung
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD475432 PA
Self-reported in NPPES; status is on the state search
Practice location
1730 Chew St, Allentown, PA 18104
Phone
(610) 969-3500
Enumerated
Nov 29, 2018
Record last updated
Feb 16, 2022
Medicare enrollment
Enrolled (PECOS I20220309000004); accepts Medicare assignment
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 1730 Chew St

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

  1. Gregory Cannon, D.O.Family Medicine Physician1811252679
  2. Catherine Ehrig, CRNPFamily Nurse Practitioner1841459823
  3. Alex Johnson, D.O.Family Medicine Physician1952714891
  4. Ashwini Kamath Mulki, MDFamily Medicine Physician1386802429
  5. Drew Keister, M.D.Family Medicine Physician1407849862
  6. Kate Linehan, PSYDClinical Psychologist1801379391

Verify Yoonjie Chung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD475432
    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 Pennsylvania 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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18% more Medicare Part D claims than the average family medicine physician in 2024

4,168 Medicare Part D claims for 297 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 109 claims were for opioids.

  1. Yoonjie Chung4,168
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium314 claims
  2. Jardiance198 claims
  3. Amlodipine Besylate180 claims
  4. Omeprazole172 claims
  5. Lisinopril165 claims
  6. Metformin Hcl136 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.

Bills Medicare through one group practice

  1. Valley Health Partners Community Health CenterAllentown, PA

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

Yoonjie Chung among 7,483 family medicine physician records in Pennsylvania

Yoonjie Chung, MD is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 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 2018, is newer than 78% of them.

  • NPI issued2018 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2018 · median 2005 among the 4,529 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

208 family medicine physician records list a practice address in Allentown

They are 208 of the 5,904 NPPES records with a practice address in Allentown, and 7,483 family medicine physician records in Pennsylvania.

The 8 family medicine physician records with the nearest ZIP codes

  1. John Connelly, DOAllentown, PA 181041013982867
  2. Joseph Habig, MDAllentown, PA 181041811949340
  3. Danny Hernandez, MDAllentown, PA 181041316920390
  4. Sweety Jain, MDAllentown, PA 181041902860968
  5. Michele Jones, DOAllentown, PA 181041437135357
  6. Drew Keister, M.D.Allentown, PA 181041407849862
  7. Fred Laufer, MDAllentown, PA 181041619957651
  8. Neilson Mathews, M.D.Allentown, PA 181041114920915

Common questions

What is Yoonjie Chung, MD's NPI number?

Yoonjie Chung, MD's National Provider Identifier (NPI) is 1447720719, issued on Nov 29, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Yoonjie Chung, MD located?

The NPPES record lists a practice address at 1730 Chew St, Allentown, PA, 18104. Phone: (610) 969-3500. Providers update this record themselves, so call before visiting.

How can I verify Yoonjie Chung, MD's license?

NPPES lists Pennsylvania license number MD475432, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Yoonjie Chung, MD prescribe under Medicare Part D?

In 2024, Yoonjie Chung, MD had 4,168 Medicare Part D claims for 297 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

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.