John Matthew Snowden, 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.

• Tidalhealth Nanticoke, Inc. Hospital · Seaford, DE · listed as Tidalhealth Nanticoke, Inc
• Tidalhealth Peninsula Regional, Inc Hospital · Salisbury, MD

Colleagues at Tidalhealth Specialty Care LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 366 clinicians in the practice; 12 are shown here.

• Amanda Lee Fleming, CRNP Nurse Practitioner · Berlin, MD
• Margo L K Gill, MD Family Medicine Physician · Charlottesville, VA
• MS. Ali Heather Griffin, PA-C Physician Assistant · Salisbury, MD
• Bradley Helmuth, FNP-BC Family Nurse Practitioner · Salisbury, MD
• Florian Georg Huber, MD Orthopaedic Trauma Physician · Salisbury, MD
• Maximus Jang Student in an Organized Health Care Education/Training Program · Salisbury, MD
• Junaid Hassan Khawaja, MD Internal Medicine Physician · Salisbury, MD
• Nimmy Mathew Hospitalist Physician · Salisbury, MD
• Samah N Ramadan-Nassar, PA Physician Assistant · Madison, WI
• Michael P Sabadish, MD Clinical Cardiac Electrophysiology Physician · Thorndale, PA
• Dr. Stepan Snitcar Critical Care Medicine (Internal Medicine) Physician · Saint Louis, MO
• Susan Coutinho Vieira-Candela, PA Physician Assistant · Salisbury, MD

Other providers in Salisbury

• Sharad R Satyal, MD

  Individual Internal Medicine Physician · NPI 1033177852

  910 Eastern Shore Dr, Salisbury, MD 21804-6410 · (410) 546-1331

• Shaik Abdul MD LLC

  Organization Internal Medicine Physician · NPI 1891511887

  220 Tilghman Rd, Salisbury, MD 21804-1921 · (469) 469-8365

• Mark Laurence Silva, MD

  Individual Internal Medicine Physician · NPI 1972175784

  100 E Carroll St, Salisbury, MD 21801-5422 · (410) 543-7092

• Charles B Silvia Jr., MD

  Individual Internal Medicine Physician · NPI 1023017134

  100 E Carroll St Inpatient Services, Salisbury, MD 21801-5422 · (410) 543-7536

• Christopher S. Snyder, DO

  Individual Internal Medicine Physician · NPI 1073512844

  Prmc Inpatient Services 100 E Carroll St, Salisbury, MD 21801 · (410) 543-7536

• Dr. Shahabuddin Soherwardi, MD

  Individual Internal Medicine Physician · NPI 1548646383

  100 E Carroll St, Salisbury, MD 21801-5422 · (180) 074-9519

• Southside Medical Care LLC

  Organization Internal Medicine Physician · NPI 1437698552

  102 Williamsport Cir, Salisbury, MD 21804-6400 · (443) 978-7028

• Dr. Adam Stern, DO

  Individual Internal Medicine Physician · NPI 1770223612

  100 E Carroll St, Salisbury, MD 21801-5422 · (302) 463-2036