Dr. James Harrell Masterson, 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.

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. Those with a page here are linked.

• Luminis Health Anne Arundel Medical Center, Inc Hospital · Annapolis, MD
• Medstar Southern Maryland Hospital Center Hospital · Clinton, MD · listed as Medstar Southern Maryland Hospital Center Inc
• Saint Agnes Hospital Hospital · Baltimore, MD
• University Of Md Capital Region Medical Center Hospital · Upper Marlboro, MD

Colleagues at Chesapeake Urology Associates LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 160 clinicians in the practice; 12 are shown here.

• Dr. Natalia Luisa Arias Villela, MD Student in an Organized Health Care Education/Training Program · Towson, MD
• Dr. Daniel P Arrison, MD Specialist · Bel Air, MD
• Parker James Barrett, PA-C Surgical Physician Assistant · Baltimore, MD
• Dr. Rhett L Daugherty, MD Urology Physician · Brandywine, MD
• Miss. Candice Yaa Fori, PA Physician Assistant · Silver Spring, MD
• Steven Ray Jaskulsky, MD Urology Physician · Baltimore, MD
• Dr. Priyanka Kancherla, MD Urology Physician · Rockville, MD
• Dr. Adam Jacob Mathias Kern, MD Pediatric Urology Physician · Annapolis, MD
• MS. Helen Anne Reidler, PA-C Physician Assistant · Baltimore, MD
• Jonathan N. Rubenstein, MD Urology Physician · Towson, MD
• Dr. James Ryan Russell, MD Urology Physician · Columbia, MD
• Mrs. Diane Schmidt, CRNP Nurse Practitioner · Towson, MD

Other providers in Annapolis

• Dr. Matthew Gregory Heavner, MD

  Individual Urology Physician · NPI 1285096636

  600 Ridgely Ave Ste 222, Annapolis, MD 21401-1073 · (410) 266-8049

• Dr. Ronald Kretkowski, MD

  Individual Urology Physician · NPI 1336355668

  2973 Southaven Dr, Annapolis, MD 21401-7104 · (410) 266-8893

• Dr. Richard Michael Levin, MD

  Individual Urology Physician · NPI 1760466486

  810 Bestgate Rd Ste 235, Annapolis, MD 21401-3656 · (443) 231-1500

• Fei Lian, MD

  Individual Urology Physician · NPI 1699169169

  600 Ridgely Ave Ste 130, Annapolis, MD 21401-1045 · (410) 266-8049

• Dr. David William McDermott, MD

  Individual Urology Physician · NPI 1730184177

  600 Ridgely Ave Ste 130, Annapolis, MD 21401-1045 · (410) 266-8049

• Dr. Patrick Shannon McDonough, MD

  Individual Urology Physician · NPI 1649442682

  600 Ridgely Ave Ste 130, Annapolis, MD 21401-1045 · (410) 266-8049

• Kevin McGeagh, MD

  Individual Urology Physician · NPI 1154319549

  600 Ridgely Ave Ste 130, Annapolis, MD 21401-1045 · (104) 266-8049

• Neil Mendhiratta, MD

  Individual Urology Physician · NPI 1023472248

  810 Bestgate Rd Ste 235, Annapolis, MD 21401-3656 · (443) 231-1500