DR. NICHOLAS KETCHUM M.D.
NPI 1801979885
Physical Medicine & Rehabilitation in Greenfield, WI
About Dr. Nicholas Ketchum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NICHOLAS KETCHUM M.D. (NPI 1801979885) is an individual physical medicine & rehabilitation provider in Greenfield, Wisconsin, licensed in Wisconsin (51705) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Froedtert Memorial Lutheran Hospital, and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
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. Nicholas Ketchum 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 Reassignments
3Medicare enrollment records show Nicholas Ketchum reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 9 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 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.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Froedtert Memorial Lutheran Hospital
Acute Care Hospitals · Milwaukee, WIOther Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREENFIELD, WI 53228
GREENFIELD, WI 53228
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 Nicholas Ketchum's NPI number?
The NPI number for Nicholas Ketchum is 1801979885. It was assigned to this individual provider in the NPPES registry on October 23, 2006.
Where is Nicholas Ketchum located?
Nicholas Ketchum practices at 10750 W Howard Ave, Greenfield, WI 53228. The listed phone number is (414) 460-3195.
What is Nicholas Ketchum's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Nicholas Ketchum enrolled in Medicare?
Yes. Nicholas Ketchum 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 organizations bill Medicare for Nicholas Ketchum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Ketchum reassigns Medicare benefits to 3 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI), Center For Neurological Disorders, Sc (Milwaukee, WI) and Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI). Each 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 Nicholas Ketchum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nicholas Ketchum accept?
Health plans from Anthem Blue Cross and Blue Shield and Aspirus Health Plan list Nicholas Ketchum 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.
Is Nicholas Ketchum affiliated with any hospitals?
According to CMS data, Nicholas Ketchum is affiliated with Froedtert Memorial Lutheran Hospital.
When was this NPI record last updated?
The NPPES record for Nicholas Ketchum was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.