Home Providers ROBERT D HOLWERDA RD Listed ROBERT D HOLWERDA GRAND RAPIDS General Counseling License & Credentials License Type Psychiatrist (MD/DO) Specialization (NPI) Psychiatry & Neurology, Psychiatry NPI Number 1205995735 Verify on NPI Registry (Search: 1205995735) Ask Mia Mia Online New chat Hi, I'm Mia. Tell me what kind of support you're looking for, and I'll guide you to the right fit. Providers near me