Aaron R. Zarnosky, PA
Physician Assistant · Grand Rapids, MI
Aaron R. Zarnosky, PA is a physician assistant with a practice address in Grand Rapids, Michigan, and NPI 1811915721, issued on Jul 18, 2006. Check the license (Michigan 5601003845, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Aaron R. Zarnosky
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601003845 MI
Self-reported in NPPES; status is on the state search - Practice location
- 5800 Foremost Dr SE Ste 200, Grand Rapids, MI 49546
- Phone
- (616) 389-1800
- Enumerated
- Jul 18, 2006
- Record last updated
- Jan 17, 2023
- Fax
- (616) 389-1839
- Medicare enrollment
- Enrolled (PECOS I20140930002189); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
Also registered at 5800 Foremost Dr SE Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tanya Rowerdink, N.P.Gerontology Nurse Practitioner1841720133
- Megan Sawyer, N.P.Family Nurse Practitioner1942603790
Verify Aaron R. Zarnosky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601003845Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average physician assistant in 2024
246 Medicare Part D claims for 67 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims. 35 claims were for opioids.
Most prescribed
- Eliquis64 claims
- Hydroxyurea49 claims
- Jakafi15 claims
- Morphine Sulfate Er11 claims
- Penicillin V Potassium11 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.
Industry payments in 2024: $3,819.53
86 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Cancer And Hematology Centers OF Western MI, P.C.Holland, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron R. Zarnosky among 6,989 physician assistant records in Michigan
Aaron R. Zarnosky, PA is one of 6,989 physician assistant 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 83% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2002 · median 2017 among the 4,739 with a school on file
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
913 physician assistant records list a practice address in Grand Rapids
They are 913 of the 18,005 NPPES records with a practice address in Grand Rapids, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Grand Rapids → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Randall Brady, PAGrand Rapids, MI 495461396798542
- Robert Burghduf, PA-CGrand Rapids, MI 495461477548832
- Heather Dickinson, PA-CGrand Rapids, MI 495461144269291
- Karen Garbowitz, PA-CGrand Rapids, MI 495461144210139
- Patrick Handlin, PAGrand Rapids, MI 495461366421711
- Kendra Lowing, P.A.Grand Rapids, MI 495461710951488
- Kathryn Pleune, PA-CGrand Rapids, MI 495461467426122
- Karen Ruihley, PA-CGrand Rapids, MI 495461225094295
Common questions
What is Aaron R. Zarnosky, PA's NPI number?
Aaron R. Zarnosky, PA's National Provider Identifier (NPI) is 1811915721, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Aaron R. Zarnosky, PA located?
The NPPES record lists a practice address at 5800 Foremost Dr SE Ste 200, Grand Rapids, MI, 49546. Phone: (616) 389-1800. Providers update this record themselves, so call before visiting.
How can I verify Aaron R. Zarnosky, PA's license?
NPPES lists Michigan license number 5601003845, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Aaron R. Zarnosky, PA prescribe under Medicare Part D?
In 2024, Aaron R. Zarnosky, PA had 246 Medicare Part D claims for 67 beneficiaries; the average among physician assistant prescribers was 830. 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.