KRISTIN S OLDENBERG MD
NPI 1346293362
Obstetrics & Gynecology in Grand Rapids, MI
About Kristin S Oldenberg Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KRISTIN S OLDENBERG MD (NPI 1346293362) is an individual obstetrics & gynecology provider in Grand Rapids, Michigan, licensed in Michigan (4301078602) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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)
Kristin S Oldenberg Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Kristin Oldenberg reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 405 clinicians in this Medicare group
Muskegon, MI 49442
- Reassigned Medicare billing, Michigan enrollment
- 150 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 49503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
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 Kristin Oldenberg's NPI number?
The NPI number for Kristin Oldenberg is 1346293362. It was assigned to this individual provider in the NPPES registry on May 19, 2006.
Where is Kristin Oldenberg located?
Kristin Oldenberg practices at 330 Barclay Ave NE Suite 304, Grand Rapids, MI 49503. The listed phone number is (616) 391-2160.
What is Kristin Oldenberg's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Kristin Oldenberg enrolled in Medicare?
Yes. Kristin Oldenberg is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Kristin Oldenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kristin Oldenberg reassigns Medicare benefits to 3 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI), Spectrum Health Hospitals (Grand Rapids, MI) and Mercy Health Partners - Physician Specialist (Muskegon, MI). 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 Kristin Oldenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kristin Oldenberg accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Kristin Oldenberg 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 Kristin Oldenberg was last updated on February 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Kristin S Oldenberg, MD · NPI 1346293362
Obstetrics & Gynecology physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since May 19, 2006.
## Identity
- **NPI:** 1346293362 (Entity type: Individual)
- **Enumerated:** May 19, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 4301078602 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 330 BARCLAY AVE NE, SUITE 304, Grand Rapids, MI 49503-2556
- **Phone:** (616) 391-2160 · **Fax:** (616) 391-2683
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Spectrum Health Primary Care Partners (NPI 1689499667, Grand Rapids, MI); Spectrum Health Hospitals (NPI 1558407189, Grand Rapids, MI); Mercy Health Partners - Physician Specialist (NPI 1922248772, Muskegon, MI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 25, 2021
- **Other identifiers:** Medicaid 4770413 (MI); Medicaid 1346293362 (MI); Medicaid 4770422 (MI); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1346293362) · Data from the CMS NPPES public registry.