Hyun Ji, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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. Those with a page here are linked.

• Umd Upper Chesapeake Medical Center Hospital · Bel Air, MD · listed as Upper Chesapeake Medical Center, Inc
• 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
• University Of Md Charles Regional Medical Center Hospital · La Plata, MD
• University Of Md Shore Medical Center At Easton Hospital · Easton, MD

Colleagues at University of Maryland Physicians PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 390 clinicians in the practice; 12 are shown here.

• Neil Kumar Agarwal, MD Internal Medicine Physician · Baltimore, MD
• Hiba Ahmed, MD Nephrology Physician · Baltimore, MD
• Ashley Helen Barnes, MD Infectious Disease Physician · Baltimore, MD
• Preeti Chandra, MD Nephrology Physician · Baltimore, MD
• Dr. Joel Villanueva Chua Infectious Disease Physician · Baltimore, MD
• Poonam Mathur, DO Infectious Disease Physician · Baltimore, MD
• Shivakumar Narayanan, MD Internal Medicine Physician · Baltimore, MD
• Samuel A. Patteson, CRNP Critical Care Medicine Nurse Practitioner · Baltimore, MD
• Dr. Darrell Rubin, MD Cardiovascular Disease Physician · Somerset, PA
• Dr. Nitin Seam, MD Critical Care Medicine (Internal Medicine) Physician · Washington, DC
• Selina Su, PA-C Physician Assistant · Baltimore, MD
• Kerin Alice Webber Physician Assistant · Baltimore, MD

Other providers in Rochester

• Khalid A Jazieh, MBBS

  Individual Internal Medicine Physician · NPI 1851896641

  200 1st St SW, Rochester, MN 55905-0001 · (507) 284-2511

• Dr. Mithulan Jegapragasan, MD

  Individual Internal Medicine Physician · NPI 1063711497

  200 1st St SW, Rochester, MN 55905-0001 · (507) 284-2511

• Hussam Jenad, MD

  Individual Internal Medicine Physician · NPI 1174597322

  200 1st St SW, Rochester, MN 55905-0001 · (507) 284-2511

• Madeline Anne Jenkin

  Individual Internal Medicine Physician · NPI 1750006755

  200 1st St SW, Rochester, MN 55905-0001 · (507) 284-2511

• Dr. Rade Ribhi Jibawi Rivera, MD

  Individual Internal Medicine Physician · NPI 1366235897

  200 1st St SW, Rochester, MN 55905-0001 · (507) 284-2511

• Mauricio Franco Jin, MD

  Individual Internal Medicine Physician · NPI 1174364525

  200 1st St SW, Rochester, MN 55905-0001 · (507) 284-2511

• Elena Kopeikin Joerns, MD

  Individual Internal Medicine Physician · NPI 1871909572

  200 1st St SW, Rochester, MN 55905-0001 · (507) 284-2511

• John O'Brien Joerns, MD

  Individual Internal Medicine Physician · NPI 1598020489

  200 1st St SW, Rochester, MN 55905-3220 · (507) 284-2511