DR. JAMES KLEIST M.D.
NPI 1982139986
Hospitalist in Green Bay, WI
About Dr. James Kleist M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES KLEIST M.D. (NPI 1982139986) is an individual hospitalist provider in Green Bay, Wisconsin, licensed in Wisconsin (73879) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with Aurora Medical Ctr Manitowoc County, and maintains a secondary practice location in La Crosse.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
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. James Kleist 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 James Kleist reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Green Bay, WI 54311
- Reassigned Medicare billing, Wisconsin enrollment
- 394 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 5
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Aurora Medical Ctr Manitowoc County
Acute Care Hospitals · Two Rivers, WIBay Area Medical Center
Acute Care Hospitals · Marinette, WIAurora Baycare Medical Ctr
Acute Care Hospitals · Green Bay, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54311 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.
GREEN BAY, WI 54311
GREEN BAY, WI 54311
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 James Kleist's NPI number?
The NPI number for James Kleist is 1982139986. It was assigned to this individual provider in the NPPES registry on April 27, 2017.
Where is James Kleist located?
James Kleist practices at 2845 Greenbrier Rd, Green Bay, WI 54311. The listed phone number is (920) 288-8000.
What is James Kleist's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is James Kleist enrolled in Medicare?
Yes. James Kleist 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 James Kleist's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Kleist reassigns Medicare benefits to Baycare Aurora, LLC (Green Bay, WI). 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 James Kleist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Kleist accept?
Health plans from CareSource (Common Ground Healthcare) list James Kleist 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 James Kleist affiliated with any hospitals?
According to CMS data, James Kleist is affiliated with Aurora Medical Ctr Manitowoc County, Bay Area Medical Center and Aurora Baycare Medical Ctr.
When was this NPI record last updated?
The NPPES record for James Kleist was last updated on March 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.