John Armstrong works as a doctor in Lansing. Practices under license number 5101038171, cross-checked against public registries. Prolio refreshes this listing weekly so the public information stays current and you're not reading a page Google forgot about years ago. You can contact John Armstrong directly from this page — we don't take a commission, we don't resell the lead, and we don't sit between you and the professional. If you're John Armstrong and want to edit this profile yourself, you can claim it for free at the bottom of the page.
John Armstrong — registro NPI #1831169697. Datos públicos NPPES (CMS).