Derek Ballas, DO

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.

• Luminis Health Anne Arundel Medical Center, Inc Hospital · Annapolis, MD

Colleagues at Luminis Health Medical Group, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 549 clinicians in the practice; 12 are shown here.

• Robin Jae Brown, MD Family Medicine Physician · Macon, GA
• Izzat Chalabi, MD Nuclear Medicine Physician · Lanham, MD
• Sabrina Gupta Student in an Organized Health Care Education/Training Program · Annapolis, MD
• Teymi-Elise Herring, MPH, RDN, CDE Registered Dietitian · Lanham, MD
• Mrs. Dora Carew John-Betts, CRNP-FAMILY Family Nurse Practitioner · Lavale, MD
• Layne Dettor Lesnau Family Nurse Practitioner · Seattle, WA
• Dr. James Macdonald, MD Adult Reconstructive Orthopaedic Surgery Physician · Annapolis, MD
• Dominique Mann, LCSW-C Clinical Social Worker · Odenton, MD
• Jacklyn McGrath, MD Family Medicine Physician · Annapolis, MD
• Emily Thompson Schelberg, CRNP Registered Nurse · Annapolis, MD
• Imad A. Tabbara, MD Hematology & Oncology Physician · Washington, DC
• Raymond Paul Zarate, NP Nurse Practitioner · Glen Burnie, MD

Other providers in Annapolis

• Christina Lee Aufderheide

  Individual Student in an Organized Health Care Education/Training Program · NPI 1538091780

  Student / training record Annapolis, MD

• Olamide Oluwasolape Gloria Awodu, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1295421899

  Student / training record Annapolis, MD

• Nima Baba Ali

  Individual Student in an Organized Health Care Education/Training Program · NPI 1093518201

  Student / training record Annapolis, MD

• Kari H Bailey, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1831484476

  Student / training record Annapolis, MD

• Dr. Lauryn Bates, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1154264448

  Student / training record Annapolis, MD

• Carolina Baz, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1285339176

  Student / training record Annapolis, MD

• Andres Arnuflo Beltran Gordon, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1598518557

  Student / training record Annapolis, MD

• Dr. Igor Belyansky, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1497936934

  Student / training record Annapolis, MD