Marilynn Klemstein, NP
- Medicare patients, 2024
- 90
- Part D claims, 2024
- 1,459
- Hospital affiliations
- 5
- Industry payments
- $22
- Medical group
- 1
- 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
Multi-specialty group site · Milwaukee, Wisconsin
Find Marilynn Klemstein'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.
Marilynn Klemstein is a family nurse practitioner in Milwaukee, Wisconsin
Marilynn Klemstein practices at Ascension Medical Group in Milwaukee, Wisconsin.
Marilynn Klemstein's NPI, 1316377294, was assigned on November 14, 2013. Marilynn Klemstein holds Wisconsin license 5549.
- NPI
- 1316377294NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234368234
- NPI enumeration date
- November 14, 2013
- 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
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marilynn Klemstein practices at Ascension Medical Group in Milwaukee, Wisconsin
Marilynn Klemstein's primary practice is Ascension Medical Group, at 400 W River Woods Pkwy, Milwaukee, WI 53212. The practice phone is (414) 465-3000.
- Ascension Medical Group400 W River Woods Pkwy, Milwaukee, WI 53212Phone(414) 465-3000
Source: Dmand AI Affiliation Data
Marilynn Klemstein is affiliated with 7 sites of care and 1 medical group
Marilynn Klemstein's primary practice is Ascension Medical Group in Milwaukee, Wisconsin. Marilynn Klemstein is also affiliated with Ascension SE Wisconsin Hospital - St. Joseph. The medical group on file is Ascension Medical Group. Dmand AI also links Marilynn Klemstein to 4 more hospitals and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Marilynn Klemstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marilynn Klemstein practices, 7 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 |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Marilynn Klemstein is one of 2,261 family nurse practitioners in Wisconsin
Family is Marilynn Klemstein's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Marilynn Klemstein is licensed in Wisconsin.
Specialties and state licenses
- Family nurse practitioner, WisconsinPrimary
Family nurse practitioners near Marilynn Klemstein
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
Marilynn Klemstein treated 90 Medicare patients in 2024, average age 71
CMS counts 90 Medicare patients who saw Marilynn Klemstein in 2024. The largest group is 65 to 74, with 50 patients. 61% of them have high blood pressure, and 58% have high cholesterol. 12% are also on Medicaid. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Marilynn Klemstein's median patient age at 56, with 70% women.
Marilynn Klemstein's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marilynn Klemstein's Medicare patients by sex, 2024
- Women7179%
- Men1921%
Chronic conditions among Marilynn Klemstein's Medicare patients, 2024
- High blood pressure61%
- High cholesterol58%
- Arthritis37%
- Diabetes21%
- Anxiety20%
- Mood disorders19%
- Depression17%
- Tobacco use16%
Share of Medicare patients with each condition. A patient can have several.
Marilynn Klemstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women70%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marilynn Klemstein wrote 1,459 Medicare Part D claims in 2024
In 2024, Marilynn Klemstein wrote 1,459 Medicare Part D claims for 238 patients. 86% of them were for generic drugs.
Marilynn Klemstein's Part D claims by kind of drug, 2024
- Generic1,250 claims86%
- Brand-name209 claims14%
Drug classes CMS tracks in Marilynn Klemstein's Part D claims, 2024
- Antibiotics3%44 of 1,459 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 Marilynn Klemstein takes part in Medicare
Marilynn Klemstein 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)
For MedTech and pharma teams
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Marilynn Klemstein received $22 in industry payments in 2025
CMS Open Payments shows 1 general payment to Marilynn Klemstein from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Exact Sciences Corporation paid the most, $22.
Companies that paid Marilynn Klemstein 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 Marilynn Klemstein'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 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) |
| 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 Marilynn Klemstein
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marilynn Klemstein's NPI number?
Marilynn Klemstein's NPI number is 1316377294. It was assigned on November 14, 2013, and it is active in the NPI Registry.
What does Marilynn Klemstein specialize in?
Marilynn Klemstein is a family nurse practitioner in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Marilynn Klemstein practice?
Marilynn Klemstein practices at 400 W River Woods Pkwy, Milwaukee, WI 53212. Marilynn Klemstein's primary practice is Ascension Medical Group in Milwaukee, Wisconsin. Dmand AI also links Marilynn Klemstein to 4 hospitals and 1 home health agency.
What is Marilynn Klemstein's office phone number?
The practice phone on file for Marilynn Klemstein is (414) 465-3000.
What is Marilynn Klemstein's medical license number?
Marilynn Klemstein holds Wisconsin license 5549.
Which hospitals is Marilynn Klemstein affiliated with?
Marilynn Klemstein is affiliated with Ascension SE Wisconsin Hospital - St. Joseph. Dmand AI links Marilynn Klemstein to 4 more hospitals.
What medical group is Marilynn Klemstein part of?
Marilynn Klemstein is linked to Ascension Medical Group.
Does Marilynn Klemstein accept Medicare?
Yes. CMS lists Marilynn Klemstein as accepting Medicare assignment.
How many Medicare patients does Marilynn Klemstein see?
CMS counts 90 Medicare patients who saw Marilynn Klemstein in 2024, with an average age of 71.
Has Marilynn Klemstein received payments from drug or device companies?
CMS Open Payments shows $22 in general payments to Marilynn Klemstein from 1 company from 2025 to 2025. The largest total came from Exact Sciences Corporation.
How long has Marilynn Klemstein been practicing?
Marilynn Klemstein graduated from medical school in 2013, 13 years ago.
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