Karen Leigh Larsen, APRN
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 72
- Hospital affiliations
- 2
- Industry payments
- $16
- Medical groups
- 2
- Practice address
- 535 South Freeborn, Marion, KS 66861
- Practice phone
- Call (620) 382-2177
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Karen Larsen'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.
Karen Leigh Larsen is a nurse practitioner in Marion, Kansas
Karen Larsen practices at St. Luke Hospital and Living Center in Marion, Kansas, part of St Luke Hospital.
Karen Larsen's NPI, 1821445677, was assigned on May 23, 2016. Karen Larsen holds Kansas license 53-77240.
- NPI
- 1821445677NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406886324
- NPI enumeration date
- May 23, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (620) 382-2177
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Karen Leigh Larsen practices at St. Luke Hospital and Living Center in Marion, Kansas
Karen Larsen's primary practice is St. Luke Hospital and Living Center, at 535 South Freeborn, Marion, KS 66861 in Marion County. The practice phone is (620) 382-2177.
- St. Luke Hospital and Living Center535 South Freeborn, Marion, KS 66861 · Marion CountyPhone(620) 382-2177
Source: Dmand AI Affiliation Data
Karen Leigh Larsen is affiliated with 3 sites of care and 2 medical groups
Karen Larsen's primary practice is St. Luke Hospital and Living Center in Marion, Kansas, part of St Luke Hospital. Karen Larsen is also affiliated with NMC Health Medical Center. The medical group on file is St. Luke Hospital and Living Center. Dmand AI also links Karen Larsen to 1 more breast imaging center and 1 medical group, each named with a free account. Karen Larsen's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Karen Leigh Larsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Larsen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Luke Hospital and Living Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across St Luke Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Karen Leigh Larsen is one of 1,019 nurse practitioners in Kansas
Nurse practitioner is Karen Larsen's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Karen Larsen is licensed in Kansas.
Specialties and state licenses
- Nurse practitioner, KansasPrimary
Nurse practitioners near Karen Larsen
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
Karen Leigh Larsen treated 17 Medicare patients in 2024, average age 80
CMS counts 17 Medicare patients who saw Karen Larsen in 2024. The largest group is under 65, with 0 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Karen Larsen's median patient age at 75, with 52% women.
Karen Larsen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Karen Larsen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Karen Larsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Karen Leigh Larsen wrote 72 Medicare Part D claims in 2024
In 2024, Karen Larsen wrote 72 Medicare Part D claims for 48 patients. 94% of them were for generic drugs.
Karen Larsen's Part D claims by kind of drug, 2024
- Generic68 claims94%
- Brand-name and other4 claims6%
Drug classes CMS tracks in Karen Larsen's Part D claims, 2024
- Antibiotics56%40 of 72 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 Karen Leigh Larsen takes part in Medicare
Karen Larsen 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
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Karen Leigh Larsen received $16 in industry payments in 2025
CMS Open Payments shows 1 general payment to Karen Larsen from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. MIMEDX Group, Inc. paid the most, $16.
Companies that paid Karen Larsen 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 Karen Leigh Larsen'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 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 Karen Leigh Larsen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Karen Leigh Larsen's NPI number?
Karen Leigh Larsen's NPI number is 1821445677. It was assigned on May 23, 2016, and it is active in the NPI Registry.
What does Karen Leigh Larsen specialize in?
Karen Leigh Larsen is a nurse practitioner in Marion, Kansas. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Karen Leigh Larsen practice?
Karen Larsen practices at 535 South Freeborn, Marion, KS 66861. Karen Larsen's primary practice is St. Luke Hospital and Living Center in Marion, Kansas, part of St Luke Hospital. Dmand AI also links Karen Larsen to 1 breast imaging center and 1 medical group.
What is Karen Leigh Larsen's office phone number?
The practice phone on file for Karen Larsen is (620) 382-2177.
What is Karen Leigh Larsen's medical license number?
Karen Larsen holds Kansas license 53-77240.
Which hospitals is Karen Leigh Larsen affiliated with?
Karen Larsen practices at St. Luke Hospital and Living Center in Marion, Kansas. Karen Larsen is also affiliated with NMC Health Medical Center.
What medical group is Karen Leigh Larsen part of?
Karen Larsen is linked to St. Luke Hospital and Living Center. Dmand AI links Karen Larsen to 1 more medical group.
Does Karen Leigh Larsen accept Medicare?
Yes. CMS lists Karen Larsen as accepting Medicare assignment.
How many Medicare patients does Karen Leigh Larsen see?
CMS counts 17 Medicare patients who saw Karen Larsen in 2024, with an average age of 80.
Has Karen Leigh Larsen received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Karen Larsen from 1 company from 2025 to 2025. The largest total came from MIMEDX Group, Inc.
How long has Karen Leigh Larsen been practicing?
Karen Larsen graduated from medical school in 2016, 10 years ago.
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