Christian Frederick Meyer, MD, PHD

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.

• Johns Hopkins Bayview Medical Center Hospital · Baltimore, MD
• Johns Hopkins Hospital, The Hospital · Baltimore, MD · listed as The Johns Hopkins Hospital
• Sibley Memorial Hospital Hospital · Washington, DC
• Tidalhealth Peninsula Regional, Inc Hospital · Salisbury, MD

Colleagues at Johns Hopkins University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2855 clinicians in the practice; 12 are shown here.

• Annlise Calypso, CRNP Family Nurse Practitioner · Baltimore, MD
• Dr. Michael Cole, PHD Hematology (Internal Medicine) Physician · Baltimore, MD
• James Stuart Ferriss, MD Gynecologic Oncology Physician · Baltimore, MD
• Dr. Archana Srinivas Hudson, MD Anesthesiology Physician · Baltimore, MD
• Dr. Brijen L Joshi, MD Critical Care Medicine (Anesthesiology) Physician · Baltimore, MD
• Niloofar Latifi, MD Internal Medicine Physician · Baltimore, MD
• Mr. Donald J. McCord, PA-C Physician Assistant · Baltimore, MD
• Raven A Morris Physician Assistant · Lutherville, MD
• Seyed Ali Mosallaie, MD Neuroradiology Physician · Baltimore, MD
• Miss. Sara Kathryn Smith, MD Pediatric Gastroenterology Physician · Baltimore, MD
• Cole Harris Sterling Internal Medicine Physician · Baltimore, MD
• Dr. Gregory Samuel Wolfe, OD Optometrist · Baltimore, MD

Other providers in Baltimore

• Dr. Serena Mao, MD, PHD

  Individual Medical Oncology Physician · NPI 1376170985

  401 N Broadway St Ste 1440, Baltimore, MD 21287-0019 · (410) 955-7390

• Catherine Handy Marshall, MD

  Individual Medical Oncology Physician · NPI 1134443948

  201 N Broadway St, Baltimore, MD 21287-0031 · (410) 955-0239

• Javier Bolanos Meade, MD

  Individual Medical Oncology Physician · NPI 1578529277

  600 N Wolfe St, Baltimore, MD 21287-0005 · (410) 955-8964

• Ranee Mehra, MD

  Individual Medical Oncology Physician · NPI 1760411326

  1550 Orleans St Crb Ii 5M.43, Baltimore, MD 21287-0014 · (443) 287-8312

• Carole B Miller, MD

  Individual Medical Oncology Physician · NPI 1457310856

  900 Caton Ave, Baltimore, MD 21229-5201 · (667) 234-2910

• Dr. Sarah Elizabeth Mudra, MD

  Individual Medical Oncology Physician · NPI 1154942969

  1650 Orleans St, Baltimore, MD 21287-0013 · (410) 614-2491

• Dr. Adrian Gerard Murphy, MBBS

  Individual Medical Oncology Physician · NPI 1427497551

  Johns Hopkins Sidney Kimmel Ctr 401 N Broadway, Baltimore, MD 21287-0001 · (410) 955-8893

• Dr. Mari Nakazawa, MD

  Individual Medical Oncology Physician · NPI 1194380485

  600 N Wolfe St, Baltimore, MD 21287-0005 · (410) 955-7911