RAJENDRA K KARNATAK MBBS
NPI 1225465149
Internal Medicine - Critical Care Medicine in Milwaukee, WI
About Rajendra K Karnatak Mbbs NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RAJENDRA K KARNATAK MBBS (NPI 1225465149) is an individual critical care medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (73412) and active in the NPI registry since October 2013. He is enrolled in Medicare PECOS, is affiliated with Aurora St Lukes Medical Center, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses 2
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
Rajendra K Karnatak Mbbs 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
2Medicare enrollment records show Rajendra Karnatak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Page, AZ 86040
- Reassigned Medicare billing, Arizona enrollment
- Medicare enrollment name: Banner Hospital Based Physicians Arizona LLC
- 1,081 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 2
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Aurora St Lukes Medical Center
Acute Care Hospitals · Milwaukee, WIAurora Medical Center
Acute Care Hospitals · Grafton, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53215 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 Rajendra Karnatak's NPI number?
The NPI number for Rajendra Karnatak is 1225465149. It was assigned to this individual provider in the NPPES registry on October 9, 2013.
Where is Rajendra Karnatak located?
Rajendra Karnatak practices at 2900 W Oklahoma Ave, Milwaukee, WI 53215. The listed phone number is (414) 649-6000.
What is Rajendra Karnatak's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Rajendra Karnatak enrolled in Medicare?
Yes. Rajendra Karnatak 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 Rajendra Karnatak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rajendra Karnatak reassigns Medicare benefits to 2 organizations: Aurora Medical Group, Inc. (Milwaukee, WI) and Banner Physician Specialists Arizona LLC (Page, AZ). 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 Rajendra Karnatak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rajendra Karnatak accept?
Health plans from CareSource (Common Ground Healthcare) list Rajendra Karnatak 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 Rajendra Karnatak affiliated with any hospitals?
According to CMS data, Rajendra Karnatak is affiliated with Aurora St Lukes Medical Center and Aurora Medical Center.
When was this NPI record last updated?
The NPPES record for Rajendra Karnatak was last updated on November 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Rajendra K Karnatak, MBBS · NPI 1225465149
Critical Care Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since October 9, 2013.
## Identity
- **NPI:** 1225465149 (Entity type: Individual)
- **Enumerated:** October 9, 2013
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 73412 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2900 W OKLAHOMA AVE, Milwaukee, WI 53215-4330
- **Phone:** (414) 649-6000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Aurora Medical Group, Inc. (NPI 1427271378, Milwaukee, WI); Banner Physician Specialists Arizona LLC (NPI 1366799355, Page, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** November 26, 2021
- **Other identifiers:** Other MD450682 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1225465149) · Data from the CMS NPPES public registry.