John Young 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.

• University Of Maryland Medical Center Hospital · Baltimore, MD
• University Of Md Medical Center Midtown Campus Hospital · Baltimore, MD · listed as University of Maryland Medical Center

Colleagues at University of Maryland Anesthesiology Associates PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 136 clinicians in the practice; 12 are shown here.

• Emily Diedrich Certified Registered Nurse Anesthetist · Baltimore, MD
• Jessica Lynn Galey, MD Anesthesiology Physician · Baltimore, MD
• Mrs. Amy Joelle Hoetzel, CRNP Family Nurse Practitioner · Easton, MD
• Rachel Bethany Johnson, MD Student in an Organized Health Care Education/Training Program · Baltimore, MD
• Farah Khalifa, RN, CRNA Certified Registered Nurse Anesthetist · Baltimore, MD
• Dr. Mary Njoku, MD Critical Care Medicine (Anesthesiology) Physician · Baltimore, MD
• John Konstantinos Papanikos, MD Anesthesiology Physician · Baltimore, MD
• Dr. David Schreibman, MD Pain Medicine (Anesthesiology) Physician · Baltimore, MD
• Dr. Vadivelu Sivaraman, MD Critical Care Medicine (Anesthesiology) Physician · Baltimore, MD
• Dr. Arissa M. Torrie, MD Pain Medicine (Anesthesiology) Physician · Baltimore, MD
• Dr. Obi R Udekwu, MD Anesthesiology Physician · Baltimore, MD
• Dr. Elizabeth Cox Williams, MD Critical Care Medicine (Anesthesiology) Physician · Baltimore, MD

Other providers in Mc Lean

• Dr. Candice Leigh Cody, MD

  Individual Anesthesiology Physician · NPI 1962793075

  8008 Westpark Dr Mid-Atlantic Kaiser Permanente Tyson's Corner ASC, Mc Lean, VA 22102-3109 · (703) 287-6436

• Antoinette Barbara Covin, MD

  Individual Anesthesiology Physician · NPI 1194991042

  8008 Westpark Dr Kaiser Permanente Tysons Corner Medical Ctr, Mc Lean, VA 22102-3109 · (703) 287-6400

• Dr. Jeremiah J Depue, MD

  Individual Anesthesiology Physician · NPI 1093864795

  8008 Westpark Dr Kaiser Permanente Tysons Corner Medical Ctr, Mc Lean, VA 22102-3109 · (703) 287-6400

• Mandeep Grewal Gauthier, MD

  Individual Anesthesiology Physician · NPI 1821381369

  8008 Westpark Dr, Mc Lean, VA 22102-3109 · (703) 237-4000

• Dr. Sonia T Kannadan, MD

  Individual Anesthesiology Physician · NPI 1457617524

  8008 Westpark Dr, Mc Lean, VA 22102-3109 · (703) 287-6400

• Dr. Jung Ja Kim, MD

  Individual Anesthesiology Physician · NPI 1992030399

  1229 Meyer Ct, Mc Lean, VA 22101-2319 · (703) 356-1885

• Dr. Cassie Kuo, MD

  Individual Anesthesiology Physician · NPI 1598923732

  8008 Westpark Dr Kaiser Permanente Tysons Corner Medical Ctr, Mc Lean, VA 22102-3109 · (703) 287-6400

• Dr. Manuel H Lee, MD

  Individual Anesthesiology Physician · NPI 1861849796

  8008 Westpark Dr, Mc Lean, VA 22102-3109 · (703) 287-6400