MEKBIB GEBREKIDAN ONKISO MD
NPI 1477013993
Internal Medicine in Milwaukee, WI
About Mekbib Gebrekidan Onkiso Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MEKBIB GEBREKIDAN ONKISO MD (NPI 1477013993) is an individual internal medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (74603) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Waukesha Memorial Hospital, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Mekbib Gebrekidan Onkiso Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
9Medicare enrollment records show Mekbib Onkiso reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 clinicians in this Medicare group
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Waukesha, WI 53188
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Apogee Medical Group Waukesha Sc
- 81 clinicians in this Medicare group
Manitowoc, WI 54220
- Reassigned Medicare billing, Wisconsin enrollment
- 350 clinicians in this Medicare group
Neenah, WI 54956
- Reassigned Medicare billing, Wisconsin enrollment
- 444 clinicians in this Medicare group
Green Bay, WI 54311
- Reassigned Medicare billing, Wisconsin enrollment
- 394 clinicians in this Medicare group
Adams, WI 53910
- Reassigned Medicare billing, Wisconsin enrollment
- 397 clinicians in this Medicare group
Stevens Point, WI 54482
- Reassigned Medicare billing, Wisconsin enrollment
- 633 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 7
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Waukesha Memorial Hospital
Acute Care Hospitals · Waukesha, WIAscension Columbia St Mary's Hospital Milwaukee
Acute Care Hospitals · Milwaukee, WIOconomowoc Memorial Hospital
Acute Care Hospitals · Oconomowoc, WIAscension All Saints Hospital
Acute Care Hospitals · Racine, WIAscension SE Wisconsin Hospital
Acute Care Hospitals · Milwaukee, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53233 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.
MILWAUKEE, WI 53233
MILWAUKEE, WI 53233
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 Mekbib Onkiso's NPI number?
The NPI number for Mekbib Onkiso is 1477013993. It was assigned to this individual provider in the NPPES registry on March 21, 2019.
Where is Mekbib Onkiso located?
Mekbib Onkiso practices at 945 N 12th St, Milwaukee, WI 53233. The listed phone number is (414) 219-7427.
What is Mekbib Onkiso's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mekbib Onkiso enrolled in Medicare?
Yes. Mekbib Onkiso is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mekbib Onkiso's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mekbib Onkiso reassigns Medicare benefits to 9 organizations: Columbia St. Mary's Hospital Milwaukee Inc (Milwaukee, WI), Ascension Medical Group-Southeast Wisconsin Inc (Milwaukee, WI), Aurora Medical Group, Inc. (Milwaukee, WI), Apogee Medical Group, Waukesha, S.C. (Waukesha, WI), Froedtert Manitowoc Medical Group, LLC (Manitowoc, WI) and 4 more organizations, listed in the Medicare section above. 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 Mekbib Onkiso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mekbib Onkiso accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan and CareSource (Common Ground Healthcare) list Mekbib Onkiso 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 Mekbib Onkiso affiliated with any hospitals?
According to CMS data, Mekbib Onkiso is affiliated with Waukesha Memorial Hospital, Ascension Columbia St Mary's Hospital Milwaukee, Oconomowoc Memorial Hospital, Ascension All Saints Hospital and Ascension SE Wisconsin Hospital.
When was this NPI record last updated?
The NPPES record for Mekbib Onkiso was last updated on September 1, 2022. 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.
# Mekbib Gebrekidan Onkiso, MD · NPI 1477013993
Internal Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since March 21, 2019.
## Identity
- **NPI:** 1477013993 (Entity type: Individual)
- **Enumerated:** March 21, 2019
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 74603 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 945 N 12TH ST, Milwaukee, WI 53233-1305
- **Phone:** (414) 219-7427 · **Fax:** (414) 219-6078
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Columbia St. Mary's Hospital Milwaukee Inc (NPI 1225071491, Milwaukee, WI); Ascension Medical Group-Southeast Wisconsin Inc (NPI 1194473066, Milwaukee, WI); Aurora Medical Group, Inc. (NPI 1427271378, Milwaukee, WI); Apogee Medical Group, Waukesha, S.C. (NPI 1528544608, Waukesha, WI); Froedtert Manitowoc Medical Group, LLC (NPI 1437829975, Manitowoc, WI); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** September 1, 2022
- **Other identifiers:** Medicaid 100203560 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1477013993) · Data from the CMS NPPES public registry.