HealthcareDiscovery.AI / Doctors / Michigan / Grand Rapids / Hematology & Oncology

Hematology & Oncology in Grand Rapids, Michigan

Data updated monthly · Last refresh September 2026

27 Hematology & Oncology providers practice in Grand Rapids, and 70% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Hematology & Oncology providers in Grand Rapids

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Amy Vander Woude, M.D.
Grand Rapids, MI · $150 in drug and device payments (2025) · (616) 954-9800
Dr. Andrew Sochacki, M.D.
Grand Rapids, MI · $418 in drug and device payments (2025) · (616) 389-1800
Dr. Brett Brinker, MD
Grand Rapids, MI · $326 in drug and device payments (2025) · (616) 954-9800
Dr. Britni Souther Mashni, DO
Grand Rapids, MI · $1,908 in drug and device payments (2025) · (616) 685-5600
Dr. Colin Hardin, M.D.
Grand Rapids, MI · $2,011 in drug and device payments (2025) · (616) 954-9800
Dr. Daniel Foley, MD
Grand Rapids, MI · $431 in drug and device payments (2025) · (616) 389-1800
Dr. Daniel Isaac, D.O.
Grand Rapids, MI · No drug or device payments recorded (2025) · (616) 486-5933
Dr. Daria Brinzevich
Grand Rapids, MI · $689 in drug and device payments (2025) · (616) 954-9800
Dr. Eric Santos, M.D.
Grand Rapids, MI · $566 in drug and device payments (2025) · (616) 954-9800
Dr. Erin Pettijohn, M.D.
Grand Rapids, MI · $2,822 in drug and device payments (2025) · Telehealth · (616) 685-5600
Dr. Frances Wong, MD
Grand Rapids, MI · $257 in drug and device payments (2025) · (616) 389-1800
Dr. Haritha Reddy, M.D.
Grand Rapids, MI · $723 in drug and device payments (2025) · (616) 954-9800
Dr. Kenneth Krajewski, M.D.
Grand Rapids, MI · No drug or device payments recorded (2025) · Telehealth · (616) 685-5600
Dr. Latha Sree Polavaram, MD
Grand Rapids, MI · $524 in drug and device payments (2025) · (616) 954-9800
Dr. Maryann Aririguzo
Grand Rapids, MI · No drug or device payments recorded (2025) · (616) 486-5933
Dr. Maryann Shango, MD
Grand Rapids, MI · $18 in drug and device payments (2025) · (616) 685-5600
Dr. Michael Mclane
Grand Rapids, MI · $659 in drug and device payments (2025) · (616) 954-9800
Dr. Michael Zakem, D.O.
Grand Rapids, MI · No drug or device payments recorded (2025) · (616) 389-1800
Dr. Mohammad Alhyari, MD
Grand Rapids, MI · $55 in drug and device payments (2025) · Telehealth · (616) 486-6700
Dr. Nehal Lakhani, M.D.
Grand Rapids, MI · $5,115 in drug and device payments (2025) · (616) 954-5554
Dr. Omar Alzarkali, DO
Grand Rapids, MI · No drug or device payments recorded (2025) · (616) 486-5933
Dr. Shahm Raslan, MD
Grand Rapids, MI · No drug or device payments recorded (2025) · (616) 486-5933
Dr. Sreenivasa Chandana, MD
Grand Rapids, MI · $24,973 in drug and device payments (2025) · (616) 954-9800
Dr. Stephanie Dublis, D.O.
Grand Rapids, MI · No drug or device payments recorded (2025) · Telehealth · (616) 486-6700
Dr. Thomas Gribbin, M.D.
Grand Rapids, MI · $1,877 in drug and device payments (2025) · (616) 954-9800
Dr. Timothy O'rourke, M.D.
Grand Rapids, MI · No drug or device payments recorded (2025) · (616) 954-9800
Dr. Yahya Ibrahim, MD
Grand Rapids, MI · $70 in drug and device payments (2025) · (616) 486-6700

Conditions Hematology & Oncology providers in Grand Rapids, Michigan commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Hematology & Oncology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Hematology & Oncology providers are in Grand Rapids, Michigan?

There are 27 Hematology & Oncology providers with active NPI records practicing in Grand Rapids, according to federal NPPES data refreshed monthly.

How many Hematology & Oncology providers in Grand Rapids received drug or device company payments?

19 of 27 (70%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Hematology & Oncology providers in Grand Rapids treat?

Hematology & Oncology providers in Grand Rapids commonly treat breast cancer, lung cancer, lymphoma, leukemia, anemia and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Grand Rapids Hematology & Oncology across Michigan

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.