HAROLD D JOHNSTON M.D.
NPI 1255305942
Family Medicine in Cook, MN
About Harold D Johnston M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HAROLD D JOHNSTON M.D. (NPI 1255305942) is an individual family medicine provider in Cook, Minnesota, licensed in Minnesota (21520) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Harold D Johnston M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55723 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Harold Johnston's NPI number?
The NPI number for Harold Johnston is 1255305942. It was assigned to this individual provider in the NPPES registry on February 17, 2006.
Where is Harold Johnston located?
Harold Johnston practices at 20 5th St SE Medical, Cook, MN 55723. The listed phone number is (218) 666-5941.
What is Harold Johnston's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Harold Johnston enrolled in Medicare?
Yes. Harold Johnston is registered in the Medicare PECOS enrollment system.
When was this NPI record last updated?
The NPPES record for Harold Johnston was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.