Mackenzie Sacks, DO
Physical Medicine & Rehabilitation Physician · Grand Rapids, MI
Mackenzie Sacks, DO is a physical medicine & rehabilitation physician with a practice address in Grand Rapids, Michigan, and NPI 1316526163, issued on Apr 7, 2021. Check the license (Michigan 5101028579, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Mackenzie Sacks
- Credential
- DO
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- 5101028579 MI
Self-reported in NPPES; status is on the state search - Practice location
- 235 Wealthy St SE, Grand Rapids, MI 49503
- Phone
- (616) 840-8593
- Enumerated
- Apr 7, 2021
- Record last updated
- Jul 24, 2025
- Medicare enrollment
- Enrolled (PECOS I20250708002372); accepts Medicare assignment
- Medical or professional school
- Marian University College Of Osteopathic Medicine, 2021
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 742 in Michigan → Look up another NPI →
Also registered at 235 Wealthy St SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alyssa Ackerman, CCC-SLPSpeech-Language Pathologist1689392714
- Penny Adams, MS-OTR/LOccupational Therapist1831690759
- Katherine Aeschlimann, OTR/LOccupational Therapist1487156972
- Leah Allan, OTR/LOccupational Therapist1265156608
- Hannah Alvarez, PT, DPTNeurology Physical Therapist1720580319
- Michelle Andary, DOPhysical Medicine & Rehabilitation Physician1841938685
Verify Mackenzie Sacks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101028579Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
190 Medicare Part D claims for 40 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Mary Free Bed Rehabilitation HospitalGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mackenzie Sacks among 742 physical medicine & rehabilitation physician records in Michigan
Mackenzie Sacks, DO is one of 742 physical medicine & rehabilitation physician records with a practice address in Michigan. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 81% of them.
- NPI issued2021 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2021 · median 2008 among the 390 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Michigan
There are 742 physical medicine & rehabilitation physician records in Michigan.
All 742 in Michigan → Every provider in Grand Rapids → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Richard Ball, M.D.Grand Rapids, MI 495031679523765
- Benjamin Bruinsma, M.D.Grand Rapids, MI 495031508804154
- Aashish Deshpande, MDGrand Rapids, MI 495031003915976
- Sampson Ho, M.D.Grand Rapids, MI 495031437192374
- Michael Jakubowski, M.D.Grand Rapids, MI 495031104863646
- Jeffrey Kramer, M.D.Grand Rapids, MI 495031306889100
- Robert Kreitsch, MDGrand Rapids, MI 495031609882661
- Christopher Morelli, D.O.Grand Rapids, MI 495031063653798
Common questions
What is Mackenzie Sacks, DO's NPI number?
Mackenzie Sacks, DO's National Provider Identifier (NPI) is 1316526163, issued on Apr 7, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mackenzie Sacks, DO located?
The NPPES record lists a practice address at 235 Wealthy St SE, Grand Rapids, MI, 49503. Phone: (616) 840-8593. Providers update this record themselves, so call before visiting.
How can I verify Mackenzie Sacks, DO's license?
NPPES lists Michigan license number 5101028579, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mackenzie Sacks, DO prescribe under Medicare Part D?
In 2024, Mackenzie Sacks, DO had 190 Medicare Part D claims for 40 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.