Douglas Diemer, PA-C
Physician Assistant · Portage, MI
Douglas Diemer, PA-C is a physician assistant with a practice address in Portage, Michigan, and NPI 1518037878, issued on Nov 8, 2006. Check the license (Michigan 5601004477, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Douglas Diemer
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601004477 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3200 W Centre Ave, Portage, MI 49024
- Phone
- (269) 324-0799
- Enumerated
- Nov 8, 2006
- Entity
- Type 1 · individual
Also registered at 3200 W Centre Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Anderson, FNPFamily Nurse Practitioner1770096745
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- Mark Goetting, MDNeurology Physician1093778755
- Cynthia Kemple, OTHand Occupational Therapist1962696278
Verify Douglas Diemer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601004477Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
The practice group's Medicare quality score for 2023: 84.9 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).
Industry payments in 2024: $36.22
1 payment, mostly food and beverage; the largest payer was Inspire Medical Systems, Inc.. The 61,144 providers of this specialty with any payment received $853.85 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.
45 physician assistant records list a Portage practice address
They are 45 of the 1,492 NPPES records with a Portage practice address, and 6,574 physician assistant records in Michigan.
All 45 in Portage → All 6,574 in Michigan → Every provider in Portage →
Other physician assistant records in Michigan
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- 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 Douglas Diemer, PA-C's NPI number?
Douglas Diemer, PA-C's National Provider Identifier (NPI) is 1518037878, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Diemer, PA-C located?
The NPPES record lists a practice address at 3200 W Centre Ave, Portage, MI, 49024. Phone: (269) 324-0799. Providers update this record themselves, so call before visiting.
How can I verify Douglas Diemer, PA-C's license?
NPPES lists Michigan license number 5601004477, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
What is Douglas Diemer, PA-C's Medicare quality score?
The 2023 MIPS final score is 84.9 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), 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.