Mary K. Zielke, FNP

  • Springfield, IL
  • Nurse practitioner
NPI1467841338PAC ID2365767704
Medicare patients, 2024
53
Part D claims, 2024
1,620
MIPS score, 2024
75
Hospital affiliations
2
Industry payments
$78
Practice address
701 N First St, Springfield, IL 62702
Practice phone
Call (217) 788-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Springfield Memorial Hospital

Hospital · Springfield, Illinois

See all 5 affiliations

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Mary K. Zielke is a nurse practitioner in Springfield, Illinois

Mary Zielke practices at Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System.

Mary Zielke's NPI, 1467841338, was assigned on January 15, 2015. Mary Zielke holds Illinois license 209012398.

NPI and contact details
Medicare PAC ID
2365767704
NPI enumeration date
January 15, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(217) 788-3000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
32
Medical school graduation
2020

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

Mary K. Zielke practices at Springfield Memorial Hospital in Springfield, Illinois

Mary Zielke's primary practice is Springfield Memorial Hospital, at 701 N First St, Springfield, IL 62702 in Sangamon County. The practice phone is (217) 788-3000.

Source: Dmand AI Affiliation Data

Mary K. Zielke is affiliated with 3 sites of care and 2 medical groups

Mary Zielke's primary practice is Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System. Mary Zielke is also affiliated with Jacksonville Memorial Hospital. The medical group on file is Four Rivers Community Health Center. Dmand AI also links Mary Zielke to 1 more community health center and 1 medical group, each named with a free account.

See all 5 affiliations for Mary Zielke

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

Dmand AI tracks the EHR system at Mary K. Zielke's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Mary Zielke practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Springfield Memorial HospitalAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Mary K. Zielke is one of 4,254 nurse practitioners in Illinois

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

Specialties and state licenses

  • Nurse practitioner, IllinoisPrimaryLicense 209012398 · taxonomy 363L00000X

Nurse practitioners near Mary Zielke

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 K. Zielke treated 53 Medicare patients in 2024, average age 58

CMS counts 53 Medicare patients who saw Mary Zielke in 2024. The largest group is under 65, with 33 patients. 75% of them have anxiety, and 75% have depression. 70% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Mary Zielke's median patient age at 53, with 60% women.

Medicare patients, 202453
Average age58
Average risk score1.15
Also on Medicaid70%

Mary Zielke's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Mary Zielke's Medicare patients by sex, 2024

  • Women3158%
  • Men2242%

Chronic conditions among Mary Zielke's Medicare patients, 2024

  1. Anxiety75%
  2. Depression75%
  3. Mood disorders75%
  4. High cholesterol60%
  5. High blood pressure57%
  6. Arthritis47%
  7. Bipolar disorder28%
  8. COPD21%

Share of Medicare patients with each condition. A patient can have several.

Mary Zielke's patients across all payers

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

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women60%
  • Men40%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Mary K. Zielke wrote 1,620 Medicare Part D claims in 2024

In 2024, Mary Zielke wrote 1,620 Medicare Part D claims for 102 patients. 97% of them were for generic drugs.

Part D claims, 20241,620
Part D patients102

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

  • Generic1,573 claims97%
  • Brand-name47 claims3%

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

  • Antipsychotics, patients 65 and over9%146 of 1,620 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

Mary K. Zielke scored 75 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Mary Zielke for performance year 2024, reported as part of a group. Mary Zielke accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes
MIPS final score, 2024
75 of 100

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Mary K. Zielke received $78 in industry payments in 2025

CMS Open Payments shows 4 general payments to Mary Zielke from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Braeburn Inc. paid the most, $25.

Companies that paid Mary Zielke the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Mary Zielke

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

Sources for Mary K. Zielke'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)Clinician Public Reporting: Overall MIPS Performance (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 K. Zielke

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 K. Zielke's NPI number?

Mary K. Zielke's NPI number is 1467841338. It was assigned on January 15, 2015, and it is active in the NPI Registry.

What does Mary K. Zielke specialize in?

Mary K. Zielke is a nurse practitioner in Springfield, Illinois. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).

Where does Mary K. Zielke practice?

Mary Zielke practices at 701 N First St, Springfield, IL 62702. Mary Zielke's primary practice is Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System. Dmand AI also links Mary Zielke to 1 community health center and 1 medical group.

What is Mary K. Zielke's office phone number?

The practice phone on file for Mary Zielke is (217) 788-3000.

What is Mary K. Zielke's medical license number?

Mary Zielke holds Illinois license 209012398.

Which hospitals is Mary K. Zielke affiliated with?

Mary Zielke practices at Springfield Memorial Hospital in Springfield, Illinois. Mary Zielke is also affiliated with Jacksonville Memorial Hospital.

What medical group is Mary K. Zielke part of?

Mary Zielke is linked to Four Rivers Community Health Center. Dmand AI links Mary Zielke to 1 more medical group.

Does Mary K. Zielke accept Medicare?

Yes. CMS lists Mary Zielke as accepting Medicare assignment.

What is Mary K. Zielke's MIPS score?

Mary Zielke's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.

How many Medicare patients does Mary K. Zielke see?

CMS counts 53 Medicare patients who saw Mary Zielke in 2024, with an average age of 58.

Has Mary K. Zielke received payments from drug or device companies?

CMS Open Payments shows $78 in general payments to Mary Zielke from 4 companies from 2025 to 2025. The largest total came from Braeburn Inc.

How long has Mary K. Zielke been practicing?

Mary Zielke graduated from medical school in 2020, 6 years ago.

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