Dr. Jonathan C Jun, MD

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Johns Hopkins Bayview Medical Center Hospital · Baltimore, MD
• Johns Hopkins Hospital, The Hospital · Baltimore, MD · listed as The Johns Hopkins Hospital

Colleagues at Johns Hopkins University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2855 clinicians in the practice; 12 are shown here.

• Natario Couser, MD Clinical Genetics (M.D.) Physician · Baltimore, MD
• Dr. Ashraf Fawzy, MD, MPH Pulmonary Disease Physician · Baltimore, MD
• Jacqueline Harris, MD Neurology with Special Qualifications in Child Neurology Physician · Baltimore, MD
• Al-Faraaz Kassam, MD Surgery Physician · Baltimore, MD
• Dr. Edward Kuwera, MD Student in an Organized Health Care Education/Training Program · Baltimore, MD
• Dr. Paul Nestadt, MD Psychiatry Physician · Baltimore, MD
• Mrs. Patricia Uwazuruonye Njoku, CRNP Adult Health Nurse Practitioner · Baltimore, MD
• MS. Monica Lynne Riegert, CRNP Family Nurse Practitioner · Baltimore, MD
• Dr. Alexius Enrique Garcia Sandoval, MD Physical Medicine & Rehabilitation Physician · Bangor, ME
• David Nathan Suwondo, MD Emergency Medicine Physician · New Haven, CT
• Mrs. Rebecca Sue Turner, CRNP Acute Care Nurse Practitioner · Baltimore, MD
• Bo Wang, MDPHD Ophthalmology Physician · Baltimore, MD

Other providers in Baltimore

• Jhu Respiratory Div

  Organization Pulmonary Disease Physician · NPI 1134099864

  5300 Alpha Commons Dr, Baltimore, MD 21224-1750 · (410) 550-0100

• Jhu Respiratory Div

  Organization Pulmonary Disease Physician · NPI 1386514818

  5501 Hopkins Bayview Cir Fl 3, Baltimore, MD 21224-6821 · (410) 550-0100

• Jhu Respiratory Div

  Organization Pulmonary Disease Physician · NPI 1578433488

  5501 Hopkins Bayview Cir Fl 2, Baltimore, MD 21224-6821 · (410) 550-2300

• Johns Hopkins University

  Organization Pulmonary Disease Physician · NPI 1831186808

  600 N Wolfe St, Baltimore, MD 21287-0005 · (410) 558-5238

• Dr. James Kaiser, MD

  Individual Pulmonary Disease Physician · NPI 1831285550

  10 N Greene St Baltimore VA Medical Ctr, Baltimore, MD 21201 · (410) 605-7197

• Dr. William Brian Karkowsky, MD

  Individual Pulmonary Disease Physician · NPI 1053675074

  6503 Sanzo Rd Apt F, Baltimore, MD 21209-2412 · (301) 787-9327

• Dr. Bo Soo Kim, MD

  Individual Pulmonary Disease Physician · NPI 1649294695

  5501 Hopkins Bayview Cir Rm 4B74, Baltimore, MD 21224-6821 · (410) 550-0545

• Landon King, MD

  Individual Pulmonary Disease Physician · NPI 1346281326

  600 N Wolfe St, Baltimore, MD 21287-0005 · (410) 955-3467