Gwen E. Herzog, RN
- Medicare patients, 2024
- 471
- Part D claims, 2024
- 17,138
- Hospital affiliations
- 3
- Medical groups
- 4
- State license
- 1
- Practice address
- 645 N Church St, Elkhorn, WI 53121
- Practice phone
- Call (262) 875-5070
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Oak Medical SC
Elkhorn, Wisconsin
Find Gwen Herzog'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.
Gwen E. Herzog is a family nurse practitioner in Elkhorn, Wisconsin
Gwen Herzog practices at Oak Medical SC in Elkhorn, Wisconsin.
Gwen Herzog's NPI, 1467832667, was assigned on June 2, 2015. Gwen Herzog holds Wisconsin license 7630-33.
- NPI
- 1467832667NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012289747
- NPI enumeration date
- June 2, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 875-5070
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Gwen E. Herzog practices at Oak Medical SC in Elkhorn, Wisconsin
Gwen Herzog's primary practice is Oak Medical SC, at 645 N Church St, Elkhorn, WI 53121 in Walworth County. The practice phone is (262) 875-5070.
- Oak Medical SC645 N Church St, Elkhorn, WI 53121 · Walworth CountyPhone(262) 875-5070
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Gwen E. Herzog is affiliated with 8 sites of care and 4 medical groups
Gwen Herzog's primary practice is Oak Medical SC in Elkhorn, Wisconsin. Gwen Herzog is also affiliated with ProHealth Waukesha Memorial Hospital. The medical group on file is Oak Medical, SC. Dmand AI also links Gwen Herzog to 2 more hospitals, 3 medical groups, 2 hospices, 1 home health agency and 1 skilled nursing facility, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gwen E. Herzog's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gwen Herzog practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oak Medical SC | Available with a free account |
| +7 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Gwen E. Herzog is one of 2,261 family nurse practitioners in Wisconsin
Family is Gwen Herzog's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Gwen Herzog is licensed in Wisconsin.
Specialties and state licenses
- Family nurse practitioner, WisconsinPrimary
Family nurse practitioners near Gwen Herzog
Counts of family 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
Gwen E. Herzog treated 471 Medicare patients in 2024, average age 83
CMS counts 471 Medicare patients who saw Gwen Herzog in 2024. The largest group is 85 and over, with 228 patients. 75% of them have high blood pressure, and 68% have alzheimer's and dementia. 48% are also on Medicaid. Their average risk score is 1.95, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Gwen Herzog's median patient age at 85, with 68% women.
Gwen Herzog's Medicare patients by age, 2024
Gwen Herzog's Medicare patients by sex, 2024
- Women32870%
- Men14330%
Chronic conditions among Gwen Herzog's Medicare patients, 2024
- High blood pressure75%
- Alzheimer's and dementia68%
- High cholesterol60%
- Mood disorders48%
- Depression47%
- Arthritis46%
- Anxiety43%
- Chronic kidney disease39%
Share of Medicare patients with each condition. A patient can have several.
Gwen Herzog's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 85
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gwen E. Herzog wrote 17,138 Medicare Part D claims in 2024
In 2024, Gwen Herzog wrote 17,138 Medicare Part D claims for 1,132 patients. 89% of them were for generic drugs.
Gwen Herzog's Part D claims by kind of drug, 2024
- Generic15,214 claims89%
- Brand-name1,751 claims10%
- Other173 claims1%
Drug classes CMS tracks in Gwen Herzog's Part D claims, 2024
- Opioids3%525 of 17,138 claims
- Antibiotics1%184 of 17,138 claims
- Antipsychotics, patients 65 and over3%533 of 17,138 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Gwen E. Herzog takes part in Medicare
Gwen Herzog 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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Sources for Gwen E. Herzog'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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 Gwen E. Herzog
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gwen E. Herzog's NPI number?
Gwen E. Herzog's NPI number is 1467832667. It was assigned on June 2, 2015, and it is active in the NPI Registry.
What does Gwen E. Herzog specialize in?
Gwen E. Herzog is a family nurse practitioner in Elkhorn, Wisconsin. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Gwen E. Herzog practice?
Gwen Herzog practices at 645 N Church St, Elkhorn, WI 53121. Gwen Herzog's primary practice is Oak Medical SC in Elkhorn, Wisconsin. Dmand AI also links Gwen Herzog to 2 hospitals, 3 medical groups, 2 hospices, 1 home health agency and 1 skilled nursing facility.
What is Gwen E. Herzog's office phone number?
The practice phone on file for Gwen Herzog is (262) 875-5070.
What is Gwen E. Herzog's medical license number?
Gwen Herzog holds Wisconsin license 7630-33.
Which hospitals is Gwen E. Herzog affiliated with?
Gwen Herzog is affiliated with ProHealth Waukesha Memorial Hospital. Dmand AI links Gwen Herzog to 2 more hospitals.
What medical group is Gwen E. Herzog part of?
Gwen Herzog is linked to Oak Medical, SC. Dmand AI links Gwen Herzog to 3 more medical groups.
Does Gwen E. Herzog accept Medicare?
Yes. CMS lists Gwen Herzog as accepting Medicare assignment.
How many Medicare patients does Gwen E. Herzog see?
CMS counts 471 Medicare patients who saw Gwen Herzog in 2024, with an average age of 83.
How long has Gwen E. Herzog been practicing?
Gwen Herzog graduated from medical school in 2016, 10 years ago.
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