Physician

Sonya Joy Inderbitzin-Fischer, MD

According to 2025 Medicare claims, Sonya Inderbitzin-Fischer, MD (NPI: 1184128670) practices hematology in the Grand Rapids-Wyoming-Kentwood, MI market, with the plurality of this provider's patient population coming from Kent, MI. This provider's primary affiliated billing organization is CANCER & HEMATOLOGY CENTERS OF WESTERN MI, P.C. (NPI: 1528018389; TIN: 382777354) and primary practice location at 49424-8217.

Inderbitzin-Fischer's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 80 traditional Medicare patients, billed 10,478 HCPCS/CPT codes, and received $177,512 in Medicare payments. The top billing code was 99215 (Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more). Part D data shows 273 prescription claims across 59 beneficiaries totaling $504,085 in drug costs, led by Venclexta (Venetoclax). Open Payments data shows 7 records totaling $364. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider has fewer than 5 years of reported Medicare Part B carrier billing data, so a reliable trend cannot be assigned. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $605 to $504,085. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.