BRIAN WILLIAM NIELSEN M.D.
NPI 1851342349
Obstetrics & Gynecology in Kalamazoo, MI
About Brian William Nielsen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRIAN WILLIAM NIELSEN M.D. (NPI 1851342349) is an individual obstetrics & gynecology provider in Kalamazoo, Michigan, licensed in Michigan (4301078174) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Burlington, and is a graduate of Wayne State University School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Brian William Nielsen 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
6Medicare enrollment records show Brian Nielsen reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kalamazoo, MI 49007
- Reassigned Medicare billing, Michigan enrollment
- 1,133 clinicians in this Medicare group
Kalamazoo, MI 49008
- Reassigned Medicare billing, Michigan enrollment
- 151 clinicians in this Medicare group
Ionia, MI 48846
- Reassigned Medicare billing, Michigan enrollment
- Also billed through NPI 1366498107 (Michigan)
- 916 clinicians in this Medicare group
Troy, OH 45373
- Reassigned Medicare billing, Ohio enrollment
- 812 clinicians in this Medicare group
Mobile, AL 36617
- Reassigned Medicare billing, Alabama enrollment
- 857 clinicians in this Medicare group
Bismarck, ND 58504
- Reassigned Medicare billing, North Dakota enrollment
- 779 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49007 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KALAMAZOO, MI 49007
KALAMAZOO, MI 49007
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 Brian Nielsen's NPI number?
The NPI number for Brian Nielsen is 1851342349. It was assigned to this individual provider in the NPPES registry on May 12, 2006.
Where is Brian Nielsen located?
Brian Nielsen practices at 601 John St Ste N1100, Kalamazoo, MI 49007. The listed phone number is (269) 341-7887.
What is Brian Nielsen's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Brian Nielsen enrolled in Medicare?
Yes. Brian Nielsen 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 Brian Nielsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Nielsen reassigns Medicare benefits to 6 organizations: Bronson Methodist Hospital (Kalamazoo, MI), Western Michigan University School Of Medicine (Kalamazoo, MI), Edward W Sparrow Hospital Association (Ionia, MI), Premier Health Specialists Inc (Troy, OH), Usa Health Physician Billing Services LLC (Mobile, AL) and 1 more organization, 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 Brian Nielsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brian Nielsen accept?
Health plans from Blue Cross Blue Shield of North Dakota, Blue Cross and Blue Shield of Alabama, Oscar Health Plan, Inc., Priority Health and Sanford Health Plan and 1 other insurer list Brian Nielsen 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.
When was this NPI record last updated?
The NPPES record for Brian Nielsen was last updated on August 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Brian William Nielsen, M.D. · NPI 1851342349
Obstetrics & Gynecology physician in Kalamazoo, Michigan. Individual provider, active in the CMS NPPES registry since May 12, 2006.
## Identity
- **NPI:** 1851342349 (Entity type: Individual)
- **Enumerated:** May 12, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 4301078174 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 601 JOHN ST STE N1100, Kalamazoo, MI 49007
- **Phone:** (269) 341-7887
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Bronson Methodist Hospital (NPI 1417961137, Kalamazoo, MI); Western Michigan University School Of Medicine (NPI 1316212343, Kalamazoo, MI); Edward W Sparrow Hospital Association (NPI 1891486205, Ionia, MI); Premier Health Specialists Inc (NPI 1619135548, Troy, OH); Usa Health Physician Billing Services LLC (NPI 1285292912, Mobile, AL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 2001
## Record status
- **NPPES last updated:** August 14, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1851342349) · Data from the CMS NPPES public registry.