DR. MARTIN OBED BAZELAK M.D.
NPI 1831456367
Internal Medicine in Milwaukee, WI
About Dr. Martin Obed Bazelak M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARTIN OBED BAZELAK M.D. (NPI 1831456367) is an individual internal medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (65242) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Aurora St Lukes Medical Center, and is a graduate of Medical College Of Wisconsin (2012).
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. Martin Obed Bazelak 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 Martin Bazelak reassigns Medicare billing to 3 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
Saint Francis, WI 53235
- Reassigned Medicare billing, Wisconsin enrollment
- 960 clinicians in this Medicare group
Milwaukee, WI 53209
- Reassigned Medicare billing, Wisconsin enrollment
- 1,615 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
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, 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 Martin Bazelak's NPI number?
The NPI number for Martin Bazelak is 1831456367. It was assigned to this individual provider in the NPPES registry on April 23, 2012.
Where is Martin Bazelak located?
Martin Bazelak practices at 2900 W Oklahoma Ave, Milwaukee, WI 53215. The listed phone number is (414) 235-4370.
What is Martin Bazelak's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Martin Bazelak enrolled in Medicare?
Yes. Martin Bazelak 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 Martin Bazelak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martin Bazelak reassigns Medicare benefits to 3 organizations: Aurora Medical Group, Inc. (Milwaukee, WI), Lakeshore Medical Clinic, LLC (Saint Francis, WI) and Aurora Advanced Healthcare, Inc. (Milwaukee, 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 Martin Bazelak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Martin Bazelak accept?
Health plans from CareSource (Common Ground Healthcare) list Martin Bazelak 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 Martin Bazelak affiliated with any hospitals?
According to CMS data, Martin Bazelak is affiliated with Aurora St Lukes Medical Center.
When was this NPI record last updated?
The NPPES record for Martin Bazelak was last updated on December 14, 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.
# Dr. Martin Obed Bazelak, M.D. · NPI 1831456367
Internal Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since April 23, 2012.
## Identity
- **NPI:** 1831456367 (Entity type: Individual)
- **Enumerated:** April 23, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 65242 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2900 W OKLAHOMA AVE, Milwaukee, WI 53215-4330
- **Phone:** (414) 235-4370
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Aurora Medical Group, Inc. (NPI 1427271378, Milwaukee, WI); Lakeshore Medical Clinic, LLC (NPI 1003861188, Saint Francis, WI); Aurora Advanced Healthcare, Inc. (NPI 1265629133, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 2012
## Record status
- **NPPES last updated:** December 14, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1831456367) · Data from the CMS NPPES public registry.