NPPES file of Aug 9, 2026

Erin Nicole Diemer, PA-C

Physician Assistant · Naperville, IL

Erin Nicole Diemer, PA-C is a physician assistant with a practice address in Naperville, Illinois, and NPI 1205636529, issued on Mar 17, 2025. Check the license (Illinois 085011119, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205636529
Name
Erin Nicole Diemer
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
085011119 IL
Self-reported in NPPES; status is on the state search
Practice location
620 N River RD Ste 101, Naperville, IL 60563
Phone
(630) 355-4755
Enumerated
Mar 17, 2025
Record last updated
Mar 17, 2025
Medicare enrollment
Enrolled (PECOS I20260417000764); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →

Verify Erin Nicole Diemer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 085011119    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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Erin Nicole Diemer among 4,926 physician assistant records in Illinois

Erin Nicole Diemer, PA-C is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 90% of them.

  • NPI issued2025 · 90% of these records are older, 3% newer
  • In a Medicare fileNo · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2024 · median 2019 among the 3,407 with a school on file
  • Record last updated2025 · 35% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

117 physician assistant records list a practice address in Naperville

They are 117 of the 4,634 NPPES records with a practice address in Naperville, and 4,926 physician assistant records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4,926 in Illinois → Every provider in Naperville → Physician Assistant nationwide →

The 8 physician assistant records with the nearest ZIP codes

  1. Christopher Arico, PA-CNaperville, IL 605631912195058
  2. Joseph Blahut, PA-CNaperville, IL 605631083779342
  3. Meghan Bramer, PA-CNaperville, IL 605631437484367
  4. Jada Butler, PA-CNaperville, IL 605631457755910
  5. Cara Essling, MMS, PA-CNaperville, IL 605631386069607
  6. Morgan Holt, PA-CNaperville, IL 605631437575362
  7. Kellie Janssen, PA-CNaperville, IL 605631194014498
  8. Christopher Kelly, PA-CNaperville, IL 605631164838900

Common questions

What is Erin Nicole Diemer, PA-C's NPI number?

Erin Nicole Diemer, PA-C's National Provider Identifier (NPI) is 1205636529, issued on Mar 17, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Erin Nicole Diemer, PA-C located?

The NPPES record lists a practice address at 620 N River RD Ste 101, Naperville, IL, 60563. Phone: (630) 355-4755. Providers update this record themselves, so call before visiting.

How can I verify Erin Nicole Diemer, PA-C's license?

NPPES lists Illinois license number 085011119, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.