NPPES file of Aug 9, 2026

Hyon Ju Park, MD

Rheumatology Physician · Wynnewood, PA

Hyon Ju Park, MD is a rheumatology physician with a practice address in Wynnewood, Pennsylvania, and NPI 1083810048, issued on Jun 26, 2007. Check the license (Pennsylvania MD448227, 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
1083810048
Name
Hyon Ju Park
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License numbers
MD448227 PA
C1-0011316 DE
2007017292 MO
Self-reported in NPPES; status is on the state search
Practice location
137 Lankenau Medical Building W, Wynnewood, PA 19096
Phone
(610) 896-8400
Enumerated
Jun 26, 2007
Record last updated
Jun 26, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(610) 896-9652
Medicare enrollment
Enrolled (PECOS I20130826000098); accepts Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 2007
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Verify Hyon Ju Park 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 MD448227
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

45% fewer Medicare Part D claims than the average rheumatology physician in 2024

1,092 Medicare Part D claims for 236 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 66 claims were for opioids.

  1. Hyon Ju Park1,092
  2. Specialty average1,978

Most prescribed

  1. Prednisone254 claims
  2. Alendronate Sodium86 claims
  3. Methotrexate82 claims
  4. Hydroxychloroquine Sulfate61 claims
  5. Humira(Cf) Pen56 claims
  6. Duloxetine Hcl55 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.

Industry payments in 2024: $3,362.07

154 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hyon Ju Park$3,362.07
  2. Specialty average$8,538.33

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. Bryn Mawr Medical Specialists AssociationBryn Mawr, PA

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

Hyon Ju Park among 413 rheumatology physician records in Pennsylvania

Hyon Ju Park, MD is one of 413 rheumatology physician records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 42% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2007 · median 2004 among the 275 with a school on file
  • Record last updated2020 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Pennsylvania

There are 413 rheumatology physician records in Pennsylvania.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Johny Fares, MDWynnewood, PA 190961942761051
  2. Gary Gordon, M.D.Wynnewood, PA 190961225065774
  3. Tanya Harari, DOWynnewood, PA 190961841727237
  4. Thomas Harder, M.D.Wynnewood, PA 190961174568612
  5. Marissa Karpoff, M.D.Wynnewood, PA 190961659613347
  6. Eric Russell, DOWynnewood, PA 190961013243401
  7. Aliza Braverman, MDPhiladelphia, PA 191021588776041
  8. David Chesner, D.O.Willow Grove, PA 190901548247679

Common questions

What is Hyon Ju Park, MD's NPI number?

Hyon Ju Park, MD's National Provider Identifier (NPI) is 1083810048, issued on Jun 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hyon Ju Park, MD located?

The NPPES record lists a practice address at 137 Lankenau Medical Building W, Wynnewood, PA, 19096. Phone: (610) 896-8400. Providers update this record themselves, so call before visiting.

How can I verify Hyon Ju Park, MD's license?

NPPES lists Pennsylvania license number MD448227, 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 Hyon Ju Park, MD prescribe under Medicare Part D?

In 2024, Hyon Ju Park, MD had 1,092 Medicare Part D claims for 236 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.