SHELBY RYAN ZAREMBA
NPI 1184117533
Surgery in Grand Blanc, MI
About Shelby Ryan Zaremba NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHELBY RYAN ZAREMBA (NPI 1184117533) is an individual surgery provider in Grand Blanc, Michigan, licensed in Michigan (5101024051) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS, is affiliated with Ascension Providence Hospital, Southfield And Novi, and is a graduate of Michigan State University College Of Osteopathic Medicine (2018).
NPPES Registry Identity
Specialties & Licenses
Group Practice 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
Shelby Ryan Zaremba 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 Shelby Zaremba reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Southfield, MI 48034
- Reassigned Medicare billing, Michigan enrollment
- 6 clinicians in this Medicare group
Detroit, MI 48236
- Reassigned Medicare billing, Michigan enrollment
- 24 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension Providence Hospital, Southfield And Novi
Acute Care Hospitals · Southfield, MIAscension St John Hospital
Acute Care Hospitals · Detroit, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48439 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.
GRAND BLANC, MI 48439
GRAND BLANC, MI 48439
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 Shelby Zaremba's NPI number?
The NPI number for Shelby Zaremba is 1184117533. It was assigned to this individual provider in the NPPES registry on June 11, 2018.
Where is Shelby Zaremba located?
Shelby Zaremba practices at 1 Genesys Pkwy, Grand Blanc, MI 48439. The listed phone number is (810) 606-5981.
What is Shelby Zaremba's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Shelby Zaremba enrolled in Medicare?
Yes. Shelby Zaremba 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 Shelby Zaremba's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Shelby Zaremba reassigns Medicare benefits to 2 organizations: Northwest Surgical Associates PC (Southfield, MI) and Acute Care Surgeons PC (Detroit, 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 Shelby Zaremba's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Shelby Zaremba accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Shelby Zaremba 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 Shelby Zaremba affiliated with any hospitals?
According to CMS data, Shelby Zaremba is affiliated with Ascension Providence Hospital, Southfield And Novi and Ascension St John Hospital.
When was this NPI record last updated?
The NPPES record for Shelby Zaremba was last updated on June 11, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Shelby Ryan Zaremba · NPI 1184117533
Surgery physician in Grand Blanc, Michigan. Individual provider, active in the CMS NPPES registry since June 11, 2018.
## Identity
- **NPI:** 1184117533 (Entity type: Individual)
- **Enumerated:** June 11, 2018
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 5101024051 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1 GENESYS PKWY, Grand Blanc, MI 48439-8065
- **Phone:** (810) 606-5981
## 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): Northwest Surgical Associates PC (NPI 1710040068, Southfield, MI); Acute Care Surgeons PC (NPI 1730415753, Detroit, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Osteopathic Medicine, class of 2018
## Record status
- **NPPES last updated:** June 11, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1184117533) · Data from the CMS NPPES public registry.