DR. IAN R POWELL M.D.
NPI 1346212545
Internal Medicine - Addiction Medicine in Oconomowoc, WI
About Dr. Ian R Powell M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IAN R POWELL M.D. (NPI 1346212545) is an individual addiction medicine provider in Oconomowoc, Wisconsin, licensed in Wisconsin (39133) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1996).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Ian R Powell M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Ian Powell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mchenry, IL 60050
- Reassigned Medicare billing, Illinois enrollment
- 99 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53066 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.
OCONOMOWOC, WI 53066
OCONOMOWOC, WI 53066
OCONOMOWOC, WI 53066
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 Ian Powell's NPI number?
The NPI number for Ian Powell is 1346212545. It was assigned to this individual provider in the NPPES registry on February 2, 2006.
Where is Ian Powell located?
Ian Powell practices at 34700 Valley Rd, Oconomowoc, WI 53066. The listed phone number is (262) 646-1391.
What is Ian Powell's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Addiction Medicine, with taxonomy code 207RA0401X.
Is Ian Powell enrolled in Medicare?
Yes. Ian Powell is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Ian Powell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ian Powell reassigns Medicare benefits to Rosecrance Inc (Mchenry, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ian Powell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ian Powell accept?
Health plans from Group Health Cooperative-SCW, MercyCare Health Plans and Quartz list Ian Powell as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Ian Powell was last updated on October 20, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.