Mary S. Knutson, ARNP

  • Marshalltown, IA
  • Nurse practitioner
NPI1144750829PAC ID6406126085
Part D claims, 2024
7,049
Hospital affiliations
4
Industry payments
$14
Medical group
1
State license
1
Practice address
55 Unitypoint Way, Marshalltown, IA 50158
Practice phone
Call (641) 754-5151
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

UnityPoint Health - Marshalltown Hospital

Hospital · Marshalltown, Iowa

See all 7 affiliations

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Mary S. Knutson is a nurse practitioner in Marshalltown, Iowa

Mary Knutson practices at UnityPoint Health - Marshalltown Hospital in Marshalltown, Iowa, part of UnityPoint Health.

Mary Knutson's NPI, 1144750829, was assigned on June 15, 2017. Mary Knutson holds Iowa license A109101.

NPI and contact details
Medicare PAC ID
6406126085
NPI enumeration date
June 15, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(641) 754-5151
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
35
Medical school graduation
2017

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Mary S. Knutson practices at UnityPoint Health - Marshalltown Hospital in Marshalltown, Iowa

Mary Knutson's primary practice is UnityPoint Health - Marshalltown Hospital, at 55 Unitypoint Way, Marshalltown, IA 50158 in Marshall County. The practice phone is (641) 754-5151.

Source: Dmand AI Affiliation Data

Mary S. Knutson is affiliated with 6 sites of care and 1 medical group

Mary Knutson's primary practice is UnityPoint Health - Marshalltown Hospital in Marshalltown, Iowa, part of UnityPoint Health. Mary Knutson is also affiliated with UnityPoint Health - Allen Hospital. The medical group on file is UnityPoint Health Marshalltown Hospital. Dmand AI also links Mary Knutson to 2 more hospitals, 1 home health agency and 1 hospice, each named with a free account.

See all 7 affiliations for Mary Knutson

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Mary S. Knutson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Mary Knutson practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UnityPoint Health - Marshalltown HospitalAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Mary S. Knutson is one of 1,051 nurse practitioners in Iowa

Nurse practitioner is Mary Knutson's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Mary Knutson is licensed in Iowa.

Specialties and state licenses

  • Nurse practitioner, IowaPrimaryLicense A109101 · taxonomy 363L00000X

Nurse practitioners near Mary Knutson

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

Mary S. Knutson's patients have a median age of 71

Across all payers, Dmand AI patient panel data puts Mary Knutson's median patient age at 71, with 55% women.

Mary Knutson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women55%
  • Men45%

Source: Dmand AI Patient Panel Data

Mary S. Knutson wrote 7,049 Medicare Part D claims in 2024

In 2024, Mary Knutson wrote 7,049 Medicare Part D claims for 444 patients. 92% of them were for generic drugs.

Part D claims, 20247,049
Part D patients444

Mary Knutson's Part D claims by kind of drug, 2024

  • Generic6,451 claims92%
  • Brand-name583 claims8%
  • Other15 claims0%

Drug classes CMS tracks in Mary Knutson's Part D claims, 2024

  • Opioids3%179 of 7,049 claims
  • Antibiotics2%144 of 7,049 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 Mary S. Knutson takes part in Medicare

Mary Knutson 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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Mary S. Knutson received $14 in industry payments in 2025

CMS Open Payments shows 1 general payment to Mary Knutson 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, $14.

Companies that paid Mary Knutson the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Mary Knutson

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Mary S. Knutson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Mary S. Knutson

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Mary S. Knutson's NPI number?

Mary S. Knutson's NPI number is 1144750829. It was assigned on June 15, 2017, and it is active in the NPI Registry.

What does Mary S. Knutson specialize in?

Mary S. Knutson is a nurse practitioner in Marshalltown, Iowa. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).

Where does Mary S. Knutson practice?

Mary Knutson practices at 55 Unitypoint Way, Marshalltown, IA 50158. Mary Knutson's primary practice is UnityPoint Health - Marshalltown Hospital in Marshalltown, Iowa, part of UnityPoint Health. Dmand AI also links Mary Knutson to 2 hospitals, 1 home health agency and 1 hospice.

What is Mary S. Knutson's office phone number?

The practice phone on file for Mary Knutson is (641) 754-5151.

What is Mary S. Knutson's medical license number?

Mary Knutson holds Iowa license A109101.

Which hospitals is Mary S. Knutson affiliated with?

Mary Knutson practices at UnityPoint Health - Marshalltown Hospital in Marshalltown, Iowa. Mary Knutson is also affiliated with UnityPoint Health - Allen Hospital. Dmand AI links Mary Knutson to 2 more hospitals.

What medical group is Mary S. Knutson part of?

Mary Knutson is linked to UnityPoint Health Marshalltown Hospital.

Does Mary S. Knutson accept Medicare?

Yes. CMS lists Mary Knutson as accepting Medicare assignment.

Has Mary S. Knutson received payments from drug or device companies?

CMS Open Payments shows $14 in general payments to Mary Knutson from 1 company from 2025 to 2025. The largest total came from Exact Sciences Corporation.

How long has Mary S. Knutson been practicing?

Mary Knutson graduated from medical school in 2017, 9 years ago.

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