Olivia K. Ertmer
- Part D claims, 2024
- 17
- Hospital affiliations
- 2
- Industry payments
- $64
- Medical group
- 1
- State license
- 1
- Practice address
- 225 Memorial Drive, Berlin, WI 54923
- Practice phone
- Call (920) 361-1313
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Olivia Ertmer'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.
Olivia K. Ertmer is a nurse practitioner in Berlin, Wisconsin
Olivia Ertmer practices at ThedaCare Medical Center-Berlin in Berlin, Wisconsin, part of Froedtert ThedaCare Health.
Olivia Ertmer's NPI, 1992557565, was assigned on April 4, 2024. Olivia Ertmer holds Wisconsin license 15069.
- NPI
- 1992557565NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274068325
- NPI enumeration date
- April 4, 2024
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (920) 361-1313
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Olivia K. Ertmer practices at ThedaCare Medical Center-Berlin in Berlin, Wisconsin
Olivia Ertmer's primary practice is ThedaCare Medical Center-Berlin, at 225 Memorial Drive, Berlin, WI 54923 in Green Lake County. The practice phone is (920) 361-1313.
- ThedaCare Medical Center-Berlin225 Memorial Drive, Berlin, WI 54923 · Green Lake CountyPhone(920) 361-1313
Source: Dmand AI Affiliation Data
Olivia K. Ertmer is affiliated with 3 sites of care and 1 medical group
Olivia Ertmer's primary practice is ThedaCare Medical Center-Berlin in Berlin, Wisconsin, part of Froedtert ThedaCare Health. Olivia Ertmer is also affiliated with ThedaCare Regional Medical Center-Neenah. The medical group on file is Surgical Associates of Neenah, S.C. Dmand AI also links Olivia Ertmer to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Olivia K. Ertmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Olivia Ertmer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ThedaCare Medical Center-Berlin | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Olivia K. Ertmer is one of 3,198 nurse practitioners in Wisconsin
Nurse practitioner is Olivia Ertmer's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Olivia Ertmer is licensed in Wisconsin.
Specialties and state licenses
- Nurse practitioner, WisconsinPrimary
Nurse practitioners near Olivia Ertmer
Counts of nurse practitioners 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
Olivia K. Ertmer's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Olivia Ertmer's median patient age at 61, with 51% women.
Olivia Ertmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Olivia K. Ertmer wrote 17 Medicare Part D claims in 2024
In 2024, Olivia Ertmer wrote 17 Medicare Part D claims for 14 patients. 82% of them were for generic drugs.
Olivia Ertmer's Part D claims by kind of drug, 2024
- Generic14 claims82%
- Brand-name and other3 claims18%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Olivia K. Ertmer takes part in Medicare
Olivia Ertmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Olivia K. Ertmer received $64 in industry payments in 2025
CMS Open Payments shows 3 general payments to Olivia Ertmer from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $64.
Companies that paid Olivia Ertmer 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 Olivia K. Ertmer'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 Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Olivia K. Ertmer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Olivia K. Ertmer's NPI number?
Olivia K. Ertmer's NPI number is 1992557565. It was assigned on April 4, 2024, and it is active in the NPI Registry.
What does Olivia K. Ertmer specialize in?
Olivia K. Ertmer is a nurse practitioner in Berlin, Wisconsin. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Olivia K. Ertmer practice?
Olivia Ertmer practices at 225 Memorial Drive, Berlin, WI 54923. Olivia Ertmer's primary practice is ThedaCare Medical Center-Berlin in Berlin, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Olivia Ertmer to 1 group practice or clinic.
What is Olivia K. Ertmer's office phone number?
The practice phone on file for Olivia Ertmer is (920) 361-1313.
What is Olivia K. Ertmer's medical license number?
Olivia Ertmer holds Wisconsin license 15069.
Which hospitals is Olivia K. Ertmer affiliated with?
Olivia Ertmer practices at ThedaCare Medical Center-Berlin in Berlin, Wisconsin. Olivia Ertmer is also affiliated with ThedaCare Regional Medical Center-Neenah.
What medical group is Olivia K. Ertmer part of?
Olivia Ertmer is linked to Surgical Associates of Neenah, S.C.
Does Olivia K. Ertmer accept Medicare?
Yes. CMS lists Olivia Ertmer as accepting Medicare assignment.
Has Olivia K. Ertmer received payments from drug or device companies?
CMS Open Payments shows $64 in general payments to Olivia Ertmer from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Olivia K. Ertmer been practicing?
Olivia Ertmer graduated from medical school in 2023, 3 years ago.
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