Dr. Timothy Gerard Vandenboom II, 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. Those with a page here are linked.

• Trinity Health Ann Arbor Hospital Hospital · Ann Arbor, MI · listed as Trinity Health Michigan Ann Arbor
• Trinity Health Oakland Hospital Hospital · Pontiac, MI · listed as St Joseph Mercy Oakland
• University Of Michigan Health System Hospital · Ann Arbor, MI
• St Joe Mercy Hospital System Livonia Hospital · Livonia, MI
• Trinity Health Livingston Hospital Hospital · Howell, MI

Colleagues at Iha Health Services Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1146 clinicians in the practice; 12 are shown here.

• Mohammed Abdrabboh, MD Family Medicine Physician · Ann Arbor, MI
• Dr. Huda Afaneh, MD Obstetrics & Gynecology Physician · Ypsilanti, MI
• Julia Akaah, MD Internal Medicine Physician · Ypsilanti, MI
• Lawrence Tyng-Hann Chen, MD Student in an Organized Health Care Education/Training Program · Ypsilanti, MI
• Vanessa Marie Hereford, MD Family Medicine Physician · Ypsilanti, MI
• Dunia I Issa, PA-C Physician Assistant · Ypsilanti, MI
• Kevin William McCool, MD Obstetrics & Gynecology Physician · Ypsilanti, MI
• Hiroko Nakahama, MD Surgery Physician · Ypsilanti, MI
• Nathaniel S Soper, MD Internal Medicine Physician · Ypsilanti, MI
• Courtney N Taylor, PA-C Medical Physician Assistant · Ann Arbor, MI
• MS. J Timlin, LMSW Clinical Social Worker · Plymouth, MI
• Rachel Weberman-Stone, MD Internal Medicine Physician · Ypsilanti, MI

Other providers in Ypsilanti

• Taher Reza Kermanshahi, MD

  Individual Anatomic Pathology & Clinical Pathology Physician · NPI 1730343930

  Iha Pathology & Laboratory Management 5301 E Huron River Dr, Ypsilanti, MI 48197 · (734) 712-3161

• Dr. David Allen Sadler, MD

  Individual Anatomic Pathology & Clinical Pathology Physician · NPI 1891721650

  5301 E Huron River Dr Clinical Laboratory-St Joseph Mercy Hospital, Ypsilanti, MI 48197-1051 · (734) 712-5989

• Charles Kenneth Tobin, DO

  Individual Anatomic Pathology & Clinical Pathology Physician · NPI 1619660099

  5333 McAuley Dr Rm 4001, Ypsilanti, MI 48197-1099 · (734) 712-3980

• Paul Valenstein, MD

  Individual Anatomic Pathology & Clinical Pathology Physician · NPI 1598733156

  5301 E Huron River Dr Pathology - St Joseph Mercy Hospital, Ypsilanti, MI 48197-1051 · (734) 712-2832

• Dr. Tracey Debolt Wentz

  Individual Anatomic Pathology & Clinical Pathology Physician · NPI 1811937675

  5301 E Huron River Dr Clinical Laboratory-St Joseph Hospital, Ypsilanti, MI 48197-1051 · (734) 712-5989