Kristina L. Diehn
- Medicare patients, 2024
- 55
- Part D claims, 2024
- 272
- Hospital affiliations
- 2
- Industry payments
- $29
- Medical groups
- 3
- Practice address
- 400 W River Woods Pkwy, Milwaukee, WI 53212
- Practice phone
- Call (414) 465-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension Medical Group
Milwaukee, Wisconsin
Find Kristina Diehn'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.
Kristina L. Diehn is a gerontology nurse practitioner in Milwaukee, Wisconsin
Kristina Diehn practices at Ascension Medical Group in Milwaukee, Wisconsin.
Kristina Diehn's NPI, 1013305200, was assigned on December 23, 2014. Kristina Diehn graduated from Perelman School of Med at the University of Pennsylvania in 2014. Kristina Diehn holds Wisconsin license 6175.
- NPI
- 1013305200NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103138268
- NPI enumeration date
- December 23, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 465-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Kristina L. Diehn practices at Ascension Medical Group in Milwaukee, Wisconsin
Kristina Diehn's primary practice is Ascension Medical Group, at 400 W River Woods Pkwy, Milwaukee, WI 53212 in Milwaukee County. The practice phone is (414) 465-3000.
- Ascension Medical Group400 W River Woods Pkwy, Milwaukee, WI 53212 · Milwaukee CountyPhone(414) 465-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Kristina L. Diehn is affiliated with 6 sites of care and 3 medical groups
Kristina Diehn's primary practice is Ascension Medical Group in Milwaukee, Wisconsin. Kristina Diehn is also affiliated with Ascension SE Wisconsin Hospital - St. Joseph. The medical group on file is Ascension Medical Group. Dmand AI also links Kristina Diehn to 1 more hospital, 3 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Kristina L. Diehn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Kristina Diehn practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Medical Group | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Kristina L. Diehn is one of 96 gerontology nurse practitioners in Wisconsin
Gerontology is Kristina Diehn's primary specialty in the NPI Registry, under taxonomy code 363LG0600X. Kristina Diehn is licensed in Wisconsin.
Specialties and state licenses
- Gerontology nurse practitioner, WisconsinPrimary
Gerontology nurse practitioners near Kristina Diehn
Counts of gerontology 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
Kristina L. Diehn treated 55 Medicare patients in 2024, average age 76
CMS counts 55 Medicare patients who saw Kristina Diehn in 2024. The largest group is 65 to 74, with 28 patients. 75% of them have high blood pressure, and 73% have high cholesterol. Their average risk score is 1.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Kristina Diehn's median patient age at 72, with 51% women.
Kristina Diehn's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Kristina Diehn's Medicare patients by sex, 2024
- Women2545%
- Men3055%
Chronic conditions among Kristina Diehn's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis49%
- COPD45%
- Atrial fibrillation42%
- Ischemic heart disease42%
- Diabetes40%
- Heart failure35%
Share of Medicare patients with each condition. A patient can have several.
Kristina Diehn'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
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Kristina L. Diehn wrote 272 Medicare Part D claims in 2024
In 2024, Kristina Diehn wrote 272 Medicare Part D claims for 71 patients. 32% of them were for generic drugs.
Kristina Diehn's Part D claims by kind of drug, 2024
- Generic86 claims32%
- Brand-name186 claims68%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Kristina L. Diehn takes part in Medicare
Kristina Diehn 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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Kristina L. Diehn received $29 in industry payments in 2025
CMS Open Payments shows 1 general payment to Kristina Diehn from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $29.
Companies that paid Kristina Diehn the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Kristina L. Diehn graduated from Perelman School of Med at the University of Pennsylvania
Kristina Diehn graduated from Perelman School of Med at the University of Pennsylvania in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Kristina L. Diehn'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Kristina L. Diehn
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Kristina L. Diehn's NPI number?
Kristina L. Diehn's NPI number is 1013305200. It was assigned on December 23, 2014, and it is active in the NPI Registry.
What does Kristina L. Diehn specialize in?
Kristina L. Diehn is a gerontology nurse practitioner in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Gerontology Nurse Practitioner (taxonomy code 363LG0600X).
Where does Kristina L. Diehn practice?
Kristina Diehn practices at 400 W River Woods Pkwy, Milwaukee, WI 53212. Kristina Diehn's primary practice is Ascension Medical Group in Milwaukee, Wisconsin. Dmand AI also links Kristina Diehn to 1 hospital, 3 group practices and clinics and 2 medical groups.
What is Kristina L. Diehn's office phone number?
The practice phone on file for Kristina Diehn is (414) 465-3000.
What is Kristina L. Diehn's medical license number?
Kristina Diehn holds Wisconsin license 6175.
Which hospitals is Kristina L. Diehn affiliated with?
Kristina Diehn is affiliated with Ascension SE Wisconsin Hospital - St. Joseph. Dmand AI links Kristina Diehn to 1 more hospital.
What medical group is Kristina L. Diehn part of?
Kristina Diehn is linked to Ascension Medical Group. Dmand AI links Kristina Diehn to 2 more medical groups.
Does Kristina L. Diehn accept Medicare?
Yes. CMS lists Kristina Diehn as accepting Medicare assignment.
How many Medicare patients does Kristina L. Diehn see?
CMS counts 55 Medicare patients who saw Kristina Diehn in 2024, with an average age of 76.
Where did Kristina L. Diehn go to medical school?
Kristina Diehn graduated from Perelman School of Med at the University of Pennsylvania in 2014.
Has Kristina L. Diehn received payments from drug or device companies?
CMS Open Payments shows $29 in general payments to Kristina Diehn from 1 company from 2025 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Kristina L. Diehn been practicing?
Kristina Diehn graduated from medical school in 2014, 12 years ago.
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