Gerrit Kleyn, PAC
Physician Assistant · Wyoming, MI
Gerrit Kleyn, PAC is a physician assistant with a practice address in Wyoming, Michigan, and NPI 1972533230, issued on Jul 3, 2006. Check the license (Michigan 5601004040, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gerrit Kleyn
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601004040 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2215 44TH St SW, Wyoming, MI 49519
- Phone
- (616) 252-8300
- Enumerated
- Jul 3, 2006
- Record last updated
- Dec 1, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (616) 252-8460
- Medicare enrollment
- Enrolled (PECOS I20040218000963); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
Also registered at 2215 44TH St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Albrecht, DOInternal Medicine Physician1932140217
- Jessica Averill, RDRegistered Dietitian1295138584
- Kelly BarthelsNurse Practitioner1326536350
- Renee Belkin-Lang, LMSWSocial Worker1568577781
- Frank Belsito, D.O.Family Medicine Physician1861455776
- Jessica Bergers, RD, CDERegistered Dietitian1164872321
Verify Gerrit Kleyn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601004040Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average physician assistant in 2024
3,005 Medicare Part D claims for 439 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 136 claims were for opioids.
Most prescribed
- Atorvastatin Calcium196 claims
- Amlodipine Besylate108 claims
- Gabapentin105 claims
- Lisinopril94 claims
- Omeprazole93 claims
- Hydrocodone-Acetaminophen86 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
- Metropolitan HospitalWyoming, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gerrit Kleyn among 6,989 physician assistant records in Michigan
Gerrit Kleyn, PAC 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
- Graduated2003 · median 2017 among the 4,739 with a school on file
- Record last updated2017 · 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).
63 physician assistant records list a practice address in Wyoming
They are 63 of the 1,661 NPPES records with a practice address in Wyoming, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Wyoming → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Larry Brewer, PA-CWyoming, MI 495191750498721
- Christina Haan, PA-CWyoming, MI 495191558316562
- Lori Haselden, PA-CWyoming, MI 495191386673960
- Rob Heffron, PACWyoming, MI 495191104850064
- Jennifer Kellogg, PA-CWyoming, MI 495191609930262
- Amber Matthysse, MS PA-CWyoming, MI 495191558455311
- Elizabeth Oman, PA-CWyoming, MI 495191851330997
- Brandi Paine, PACWyoming, MI 495191003846890
Common questions
What is Gerrit Kleyn, PAC's NPI number?
Gerrit Kleyn, PAC's National Provider Identifier (NPI) is 1972533230, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gerrit Kleyn, PAC located?
The NPPES record lists a practice address at 2215 44TH St SW, Wyoming, MI, 49519. Phone: (616) 252-8300. Providers update this record themselves, so call before visiting.
How can I verify Gerrit Kleyn, PAC's license?
NPPES lists Michigan license number 5601004040, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Gerrit Kleyn, PAC prescribe under Medicare Part D?
In 2024, Gerrit Kleyn, PAC had 3,005 Medicare Part D claims for 439 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.