Donald Owen Diemer, PA
Physician Assistant · Anna, IL
Donald Owen Diemer, PA is a physician assistant with a practice address in Anna, Illinois, and NPI 1750365680, issued on Dec 5, 2005. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Donald Owen Diemer
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 513 N Main St, Anna, IL 62906
- Phone
- (618) 833-4471
- Enumerated
- Dec 5, 2005
- Record last updated
- Apr 25, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (618) 833-6267
- Entity
- Type 1 · individual
Also registered at 513 N Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Keith Bass, NP-CFamily Nurse Practitioner1114440179
Verify Donald Owen Diemer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average physician assistant in 2024
367 Medicare Part D claims for 24 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium22 claims
- Amlodipine Besylate20 claims
- Metformin Hcl17 claims
- Omeprazole17 claims
- Gabapentin15 claims
- Levothyroxine Sodium15 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.
11 physician assistant records list a practice address in Anna
They are 11 of the 187 NPPES records with a practice address in Anna, and 4,926 physician assistant records in Illinois.
All 11 in Anna → All 4,926 in Illinois → Every provider in Anna →
Other physician assistant records in Illinois
- Brooke Aarhus, PA-CPark Ridge, IL1760985469
- Sana Abbasi, PACarol Stream, IL1831803295
- Susan Abbinanti, PA-CElk Grove Village, IL1679647358
- Katheryn Abbott, PASchaumburg, IL1356842082
- Noor Abdelrahman, PA-CChicago, IL1851012413
- Amer Abdulghafoor, MSW, MS, PA-CChicago, IL1619401718
- Kazuko Abe, P.A.Chicago, IL1881840783
- Greta Abel, PA-CWheaton, IL1174844096
- Derrik AbellAnna, IL1821618471
- Jeanine Aberbook, PA-CChicago, IL1518664176
Common questions
What is Donald Owen Diemer, PA's NPI number?
Donald Owen Diemer, PA's National Provider Identifier (NPI) is 1750365680, issued on Dec 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Donald Owen Diemer, PA located?
The NPPES record lists a practice address at 513 N Main St, Anna, IL, 62906. Phone: (618) 833-4471. Providers update this record themselves, so call before visiting.
How can I verify Donald Owen Diemer, PA's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Donald Owen Diemer, PA prescribe under Medicare Part D?
In 2024, Donald Owen Diemer, PA had 367 Medicare Part D claims for 24 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.