James Diekema, PA-C
Physician Assistant · Grand Rapids, MI
James Diekema, PA-C is a physician assistant with a practice address in Grand Rapids, Michigan, and NPI 1619080702, issued on Aug 16, 2006. Check the license (Michigan 5601002769, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Diekema
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601002769 MI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (616) 391-1680
- Enumerated
- Aug 16, 2006
- Entity
- Type 1 · individual
Also registered at 100 Michigan St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Diekema in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601002769Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
37% fewer Medicare Part D claims than the average physician assistant in 2024
522 Medicare Part D claims for 371 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin108 claims
- Doxycycline Monohydrate89 claims
- Amoxicillin-Clavulanate Potass76 claims
- Prednisone70 claims
- Cefdinir62 claims
- Albuterol Sulfate Hfa13 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.
3 hospital and facility affiliations
- Legacy Physician Group PCLansing, MI
- Patient One Care, PLLCGrand Rapids, MI
- Pic Indiana PCAlpena, MI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
898 physician assistant records list a Grand Rapids practice address
They are 898 of the 18,005 NPPES records with a Grand Rapids practice address, and 6,574 physician assistant records in Michigan.
All 898 in Grand Rapids → All 6,574 in Michigan → Every provider in Grand Rapids →
Other physician assistant records in Michigan
- Hauraa Aalabdulrasul, PADetroit, MI1467181982
- Kilee Aamodt, PA-CMuskegon, MI1578964300
- Rasha AbbasDetroit, MI1750239505
- Layan Abbasi, PA-CYpsilanti, MI1043045552
- Veronica Abbo, PA-CRoseville, MI1659889806
- Stephanie Abbott, PA-CGrand Rapids, MI1386072825
- Samar Abboud, PA-CYpsilanti, MI1871942144
- Salma Abd Elhamid, PA-CTroy, MI1457245730
- Marriam Abdallah, PA-CDearborn, MI1720962574
- Sarah Abdella, PA-CAnn Arbor, MI1457719171
Common questions
What is James Diekema, PA-C's NPI number?
James Diekema, PA-C's National Provider Identifier (NPI) is 1619080702, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Diekema, PA-C located?
The NPPES record lists a practice address at 100 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 391-1680. Providers update this record themselves, so call before visiting.
How can I verify James Diekema, PA-C's license?
NPPES lists Michigan license number 5601002769, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does James Diekema, PA-C prescribe under Medicare Part D?
In 2024, James Diekema, PA-C had 522 Medicare Part D claims for 371 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.