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Obstetrics/Gynecology

Hyun Joo Lee, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

Dr. Hyun Joo Lee, MD is an OB-GYN at 5401 Old York Rd, Suite 410, Philadelphia, PA 19141. Phone: (215) 456-6990. Accepts Medicare assignment. In 2024, Hyun Joo Lee had 76 Original Medicare patients and 126 services. NPI 1710099858. 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 Hyun Joo Lee, 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 Hyun Joo Lee accept Medicare assignment?
Yes. Medicare's clinician data says Hyun Joo Lee 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 Hyun Joo Lee see?
In 2024, CMS data shows 76 Original Medicare patients and 126 services for Hyun Joo Lee. This counts Original Medicare only and measures volume, not quality.
What is Hyun Joo Lee's NPI number?
1710099858. 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 Hyun Joo Lee, 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 patients76
Services billed to Medicare126
Different services or procedures15
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)54 services
  2. Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)26 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)15 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%
  • High blood pressure68%
  • Arthritis46%
  • Diabetes42%
  • Osteoporosis36%
  • Anxiety26%

Hospitals where Hyun Joo Lee works

Medicare's Facility Affiliation Data lists Hyun Joo Lee 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.

Practice locations

Addresses where Hyun Joo Lee is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hyun Joo Lee as a member of this group (CMS data updated October 2, 2026).

  • Einstein Practice Plan Inc794 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Pennsylvania →

Other OB-GYNs in Philadelphia

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

All OB-GYNs in Philadelphia →

Other clinicians in Einstein Practice Plan Inc

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

Clinician information

CredentialMD
Graduation year1993 (33 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1710099858
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