Erin Nicole Diemer, PA-C
- Industry payments
- $867
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 620 N River Rd, Naperville, IL 60563
- Practice phone
- Call (630) 355-4755
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Premier Internists
Primary care practice · Naperville, Illinois
Find Erin Diemer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Erin Nicole Diemer is a physician assistant in Naperville, Illinois
Erin Diemer practices at Premier Internists in Naperville, Illinois.
Erin Diemer's NPI, 1205636529, was assigned on March 17, 2025. Erin Diemer holds Illinois license 085011119.
- NPI
- 1205636529NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072089911
- NPI enumeration date
- March 17, 2025
- NPI status
- Active
- Practice phone
- (630) 355-4755
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 28
- Medical school graduation
- 2024
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Erin Nicole Diemer practices at Premier Internists in Naperville, Illinois
Erin Diemer's primary practice is Premier Internists, at 620 N River Rd, Naperville, IL 60563. The practice phone is (630) 355-4755.
- Premier Internists620 N River Rd, Naperville, IL 60563Phone(630) 355-4755
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Erin Nicole Diemer is affiliated with 2 sites of care and 2 medical groups
Erin Diemer's primary practice is Premier Internists in Naperville, Illinois. The medical group on file is Premier Internists. Dmand AI also links Erin Diemer to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Erin Nicole Diemer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Erin Diemer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Premier Internists | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Erin Nicole Diemer is one of 4,299 physician assistants in Illinois
Physician assistant is Erin Diemer's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Erin Diemer is licensed in Illinois.
Specialties and state licenses
- Physician assistant, IllinoisPrimary
Physician assistants near Erin Diemer
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Erin Nicole Diemer's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Erin Diemer's median patient age at 72, with 100% women.
Erin Diemer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Erin Nicole Diemer received $867 in industry payments in 2025
CMS Open Payments shows 41 general payments to Erin Diemer from 13 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $346.
Companies that paid Erin Diemer the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Erin Nicole Diemer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Erin Nicole Diemer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Erin Nicole Diemer's NPI number?
Erin Nicole Diemer's NPI number is 1205636529. It was assigned on March 17, 2025, and it is active in the NPI Registry.
What does Erin Nicole Diemer specialize in?
Erin Nicole Diemer is a physician assistant in Naperville, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Erin Nicole Diemer practice?
Erin Diemer practices at 620 N River Rd, Naperville, IL 60563. Erin Diemer's primary practice is Premier Internists in Naperville, Illinois. Dmand AI also links Erin Diemer to 1 group practice or clinic and 1 medical group.
What is Erin Nicole Diemer's office phone number?
The practice phone on file for Erin Diemer is (630) 355-4755.
What is Erin Nicole Diemer's medical license number?
Erin Diemer holds Illinois license 085011119.
What medical group is Erin Nicole Diemer part of?
Erin Diemer is linked to Premier Internists. Dmand AI links Erin Diemer to 1 more medical group.
Has Erin Nicole Diemer received payments from drug or device companies?
CMS Open Payments shows $867 in general payments to Erin Diemer from 13 companies from 2025 to 2025. The largest total came from Eli Lilly and Company.
How long has Erin Nicole Diemer been practicing?
Erin Diemer graduated from medical school in 2024, 2 years ago.
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