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Rheumatology

Hyon Ju Park, MD

Works at hospitals in Bryn Mawr, PA · Philadelphia, PA · Wynnewood, PA … · Pennsylvania

Summary

Dr. Hyon Ju Park, MD is a rheumatologist at 825 Old Lancaster Rd, Suite 320, Bryn Mawr, PA 19010. Phone: (610) 527-3800. Accepts Medicare assignment. In 2024, Hyon Ju Park had 298 Original Medicare patients and 67,038 services. NPI 1083810048. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Hyon Ju Park, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Hyon Ju Park accept Medicare assignment?
Yes. Medicare's clinician data says Hyon Ju Park accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Hyon Ju Park see?
In 2024, CMS data shows 298 Original Medicare patients and 67,038 services for Hyon Ju Park. This counts Original Medicare only and measures volume, not quality.
What is Hyon Ju Park's NPI number?
1083810048. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Hyon Ju Park, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients298
Services billed to Medicare67,038
Different services or procedures46
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) (J0717)23,600 services
  2. Injection, romosozumab-aqqg, 1 mg (J3111)13,230 services
  3. Injection, denosumab, 1 mg (J0897)7,320 services
  4. Injection, methylprednisolone acetate, 1 mg (J1010)1,401 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)373 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • Arthritis70%
  • High blood pressure68%
  • Osteoporosis55%
  • Ischemic heart disease35%
  • Anxiety27%

Hospitals where Hyon Ju Park works

Medicare's Facility Affiliation Data lists Hyon Ju Park at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Bryn Mawr HospitalBryn Mawr, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390139
  • Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390111
  • Main Line Hospital LankenauWynnewood, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390195
  • Paoli HospitalPaoli, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390153
  • Riddle Memorial HospitalMedia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390222

Practice locations

Addresses where Hyon Ju Park is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hyon Ju Park as a member of this group (CMS data updated October 2, 2026).

  • Bryn Mawr Medical Specialists Association134 clinicians in the group

Specialties

Find other Rheumatology doctors in Pennsylvania →

Other rheumatologists in Bryn Mawr

Clinicians with the same Medicare primary specialty in Bryn Mawr, PA — not a recommendation.

All rheumatologists in Bryn Mawr →

Other clinicians in Bryn Mawr Medical Specialists Association

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolIcahn School Of Medicine At Mount Sinai
Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1083810048
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians