William D. Zeichner, 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.

• Greater Baltimore Medical Center Hospital · Baltimore, MD

Colleagues at Gbmc Hospital Based Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 46 clinicians in the practice; 12 are shown here.

• Christian Abbott Certified Registered Nurse Anesthetist · Fallston, MD
• Oluwaseyi Ajibulu, MD Student in an Organized Health Care Education/Training Program · Baltimore, MD
• Amanda Jean Billig, CRNA Certified Registered Nurse Anesthetist · Baltimore, MD
• Dr. Andrew Chalhoub, MD Student in an Organized Health Care Education/Training Program · Atlanta, GA
• Monika Harold Certified Registered Nurse Anesthetist · Towson, MD
• Andrew Hwang Student in an Organized Health Care Education/Training Program · Towson, MD
• Dr. Phayon Lee, MD Pediatric Anesthesiology Physician · Washington, DC
• Vesselin Ruslanov Penchev, MD, PHD Student in an Organized Health Care Education/Training Program · Baltimore, MD
• Ngoc Kim Pham, MD Anesthesiology Physician · Towson, MD
• Emily Joe Stein, MD Interventional Pain Medicine Physician · Towson, MD
• Dr. Sanjay M Trivedi, MD Anesthesiology Physician · Towson, MD
• Jason P Valdez, CRNA Certified Registered Nurse Anesthetist · Towson, MD

Other providers in Towson

• Dr. Emily White, MD

  Individual Anesthesiology Physician · NPI 1215938964

  6701 N Charles St, Towson, MD 21204-6808 · (410) 296-4616

• Evan Zhengze Yang

  Individual Anesthesiology Physician · NPI 1295484822

  7601 Osler Dr, Towson, MD 21204-7700 · (410) 337-1000

• Dr. John Yang, MD

  Individual Anesthesiology Physician · NPI 1043211659

  6701 N Charles St, Towson, MD 21204-6808 · (410) 296-4616

• York Road Anesthesia

  Organization Anesthesiology Physician · NPI 1225004138

  7620 York Rd, Towson, MD 21204-7508 · (410) 337-1000

• Erin L Zenilman, MD

  Individual Anesthesiology Physician · NPI 1629310974

  6701 N Charles St # 4226, Towson, MD 21204 · (443) 849-2202

• Dr. William Zitzmann, MD

  Individual Anesthesiology Physician · NPI 1851383079

  6701 N Charles St, Towson, MD 21204-6808 · (410) 296-4616