Maryann Oyinkeprebi Van Ryn

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

• Memorial Medical Center Hospital · Springfield, IL
• St Francis Hospital Hospital · Litchfield, IL · listed as St Francis Hospital Hospice
• St Johns Hospital Hospital · Springfield, IL

Colleagues at SIU Physicians and Surgeons Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 316 clinicians in the practice; 12 are shown here.

• Dr. Adam William Berry, MD Dermatology Physician · Springfield, IL
• Dr. Rucha Haily Dalvi, MD Psychiatry Physician · Springfield, IL
• Arturo Garza-Cavazos, MD Obstetrics & Gynecology Physician · Springfield, IL
• Stacie Renee Gregory, MD Otolaryngology Physician · Springfield, IL
• Jeremy Kulacz Neurology Physician · Providence, RI
• Dr. Laura Jean Naughton, MD Obstetrics & Gynecology Physician · Jacksonville, IL
• Michael W Neumeister, MD Plastic Surgery Physician · Springfield, IL
• Melissa A. Nicol, DIETICIAN Registered Dietitian · Springfield, IL
• Alexander David Raw, MD Obstetrics & Gynecology Physician · Jacksonville, IL
• Dr. Benjamin James Rejowski, MD Surgical Critical Care Physician · Springfield, IL
• Charlene Shallow, NP Interventional Cardiology Physician · Springfield, IL
• Vanessa Larraine Williams, MD Internal Medicine Physician · Springfield, IL

Other providers in Springfield

• Esteban Tapias

  Individual Student in an Organized Health Care Education/Training Program · NPI 1710673496

  Student / training record Springfield, IL

• Brock Daniel Thornton

  Individual Student in an Organized Health Care Education/Training Program · NPI 1750062733

  Student / training record Springfield, IL

• Dr. Gabriel Jaime Tobon, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1841093804

  Student / training record Springfield, IL

• Dr. Luke Umana, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1972032969

  Student / training record Springfield, IL

• Dr. Mostafa Vasigh, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1689161713

  Student / training record Springfield, IL

• Sreejith Mohan Velliyattikuzhi, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1518308493

  Student / training record Springfield, IL

• Chantal Wahba, MD

  Individual Student in an Organized Health Care Education/Training Program · NPI 1639860356

  Student / training record Springfield, IL

• Dr. Zane Warrington, DC

  Individual Student in an Organized Health Care Education/Training Program · NPI 1477127405

  Student / training record Springfield, IL