Zachary Peter Hamersma, MD
Emergency Medicine Physician · Ludington, MI
Zachary Peter Hamersma, MD is an emergency medicine physician with a practice address in Ludington, Michigan, and NPI 1245725217, issued on Jun 22, 2018. Check the license (Michigan 4301115550, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Zachary Peter Hamersma
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 4301115550 MI
4301502785 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1 Atkinson Dr, Ludington, MI 49431
- Phone
- (231) 843-2591
- Enumerated
- Jun 22, 2018
- Record last updated
- Jan 2, 2026
- Medicaid ID
- 4301502785 MI
- Medicare enrollment
- Enrolled (PECOS I20210901003321); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 2018
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1 Atkinson Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Luke Bootz, CRNACertified Registered Nurse Anesthetist1821314378
- Holly Brooks, RNGeneral Practice Registered Nurse1659149102
- Sadie Buday, PA-CPhysician Assistant1407665771
- Kelly Buxman, RDRegistered Dietitian1477085827
- Catherine Czesnowski, M.D.Internal Medicine Physician1013399245
Verify Zachary Peter Hamersma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301115550Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% more Medicare Part D claims than the average emergency medicine physician in 2024
383 Medicare Part D claims for 267 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Methocarbamol50 claims
- Prednisone47 claims
- Cephalexin31 claims
- Cefuroxime26 claims
- Amoxicillin-Clavulanate Potass17 claims
- Ondansetron Odt17 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 96.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Ecs Western Michigan PCGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Peter Hamersma among 3,083 emergency medicine physician records in Michigan
Zachary Peter Hamersma, MD is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 69% of them.
- NPI issued2018 · 69% of these records are older, 26% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2013 among the 1,931 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 emergency medicine physician records list a practice address in Ludington
They are 7 of the 481 NPPES records with a practice address in Ludington, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Ludington → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Nathaniel Ladaga, DOLudington, MI 494311518452580
- Craig Nelson, D.O.Ludington, MI 494311861670325
- Douglas Ruckman, DOLudington, MI 494311851442248
- Zachary Vanderlaan, MDLudington, MI 494311427543495
- Elexus-Ember Vanham, DOLudington, MI 494311336763275
- Jason Wanamaker, MDLudington, MI 494311518546746
- Rebecca Loney, MDHudsonville, MI 494261104302488
- Paul Wahby, DOHolland, MI 494241952336455
Common questions
What is Zachary Peter Hamersma, MD's NPI number?
Zachary Peter Hamersma, MD's National Provider Identifier (NPI) is 1245725217, issued on Jun 22, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Peter Hamersma, MD located?
The NPPES record lists a practice address at 1 Atkinson Dr, Ludington, MI, 49431. Phone: (231) 843-2591. Providers update this record themselves, so call before visiting.
How can I verify Zachary Peter Hamersma, MD's license?
NPPES lists Michigan license number 4301115550, 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 Zachary Peter Hamersma, MD prescribe under Medicare Part D?
In 2024, Zachary Peter Hamersma, MD had 383 Medicare Part D claims for 267 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Zachary Peter Hamersma, MD's MIPS final score?
The 2023 MIPS final score is 96.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.