MACKENZIE SACKS DO
NPI 1316526163
Physical Medicine & Rehabilitation in Grand Rapids, MI
About Mackenzie Sacks Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MACKENZIE SACKS DO (NPI 1316526163) is an individual physical medicine & rehabilitation provider in Grand Rapids, Michigan, licensed in Michigan (5101028579) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Bronson Methodist Hospital, and is a graduate of Marian University College Of Osteopathic Medicine (2021).
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
Mackenzie Sacks Do 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 Reassignment
Medicare enrollment records show Mackenzie Sacks reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 209 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bronson Methodist Hospital
Acute Care Hospitals · Kalamazoo, MISpectrum Health
Acute Care Hospitals · Grand Rapids, MIMercy Health Saint Mary's
Acute Care Hospitals · Grand Rapids, MIUniversity Of Michigan Health - West
Acute Care Hospitals · Wyoming, MIOther 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 Mackenzie Sacks's NPI number?
The NPI number for Mackenzie Sacks is 1316526163. It was assigned to this individual provider in the NPPES registry on April 7, 2021.
Where is Mackenzie Sacks located?
Mackenzie Sacks practices at 235 Wealthy St SE, Grand Rapids, MI 49503. The listed phone number is (616) 840-8593.
What is Mackenzie Sacks's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Mackenzie Sacks enrolled in Medicare?
Yes. Mackenzie Sacks 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 organization bills Medicare for Mackenzie Sacks's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mackenzie Sacks reassigns Medicare benefits to Mary Free Bed Rehabilitation Hospital (Grand Rapids, MI). The 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 Mackenzie Sacks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mackenzie Sacks accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Oscar Insurance Company, Priority Health and UnitedHealthcare list Mackenzie Sacks 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 Mackenzie Sacks affiliated with any hospitals?
According to CMS data, Mackenzie Sacks is affiliated with Bronson Methodist Hospital, Spectrum Health, Mercy Health Saint Mary's and University Of Michigan Health - West.
When was this NPI record last updated?
The NPPES record for Mackenzie Sacks was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.