Devon Isaac, CRNP

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

Colleagues at University of Maryland Oncology Associates PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 63 clinicians in the practice; 12 are shown here.

• Mary Anderson, CRNP Acute Care Nurse Practitioner · Baltimore, MD
• Kelly Blosser, CRNP Acute Care Nurse Practitioner · Jarrettsville, MD
• Christina Boord, CRNP Nurse Practitioner · Baltimore, MD
• Dr. Kevin Joseph Cullen, MD Medical Oncology Physician · Baltimore, MD
• Christine Cascio Dougherty Nurse Practitioner · Baltimore, MD
• Jennie Y Law, MD Hospitalist Physician · Baltimore, MD
• Ana Lazarevic Student in an Organized Health Care Education/Training Program · Baltimore, MD
• Dr. Aaron Paul Rapoport, MD Hematology (Internal Medicine) Physician · Baltimore, MD
• Amanda Paige Swerdloff, CRNP Acute Care Nurse Practitioner · Baltimore, MD
• Dr. Katherine Hanna Tkaczuk, MD Medical Oncology Physician · Baltimore, MD
• Patricia Lorena Zea Family Medicine Physician · Rosedale, MD
• Dr. Ann Butler Zimrin, MD Hematology & Oncology Physician · Baltimore, MD

Other providers in Abingdon

• Mrs. Kelly Ann Getz, NURSEPRACTITIONER

  Individual Adult Health Nurse Practitioner · NPI 1700481769

  3820 Federal Ln, Abingdon, MD 21009-2700 · (410) 952-5914

• Mrs. Amy Nicole Johnson, CRNP

  Individual Adult Health Nurse Practitioner · NPI 1790375111

  100 Walter Ward Blvd Ste 100, Abingdon, MD 21009-1283 · (443) 347-4700