Marie P. Nizienski, PA-C
- Medicare patients, 2024
- 56
- Part D claims, 2024
- 2,076
- Hospital affiliations
- 5
- Industry payments
- $610
- Medical group
- 1
- Practice address
- 100 Michigan St NE, Grand Rapids, MI 49503
- Practice phone
- Call (616) 391-1774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Marie Nizienski'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.
Marie P. Nizienski is a physician assistant in Grand Rapids, Michigan
Marie Nizienski practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.
Marie Nizienski's NPI, 1144517939, was assigned on June 30, 2011. Marie Nizienski holds Michigan license 5601006046.
- NPI
- 1144517939NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820250673
- NPI enumeration date
- June 30, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 391-1774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marie P. Nizienski practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan
Marie Nizienski's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.
- Corewell Health Grand Rapids Hospitals - Butterworth100 Michigan St NE, Grand Rapids, MI 49503 · Kent CountyPhone(616) 391-1774
Source: Dmand AI Affiliation Data
Marie P. Nizienski is affiliated with 6 sites of care and 1 medical group
Marie Nizienski's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Marie Nizienski is also affiliated with Trinity Health Grand Rapids Hospital. The medical group on file is Urology Associates PC. Dmand AI also links Marie Nizienski to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marie P. Nizienski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marie Nizienski practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Grand Rapids Hospitals - Butterworth | Available with a free account |
| +5 more affiliated sites | 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 Corewell Health and 6.2K+ hospitals, with verified contacts in the same login.
Marie P. Nizienski is one of 5,857 physician assistants in Michigan
Physician assistant is Marie Nizienski's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marie Nizienski is licensed in Michigan.
Specialties and state licenses
- Physician assistant, MichiganPrimary
Physician assistants near Marie Nizienski
Counts of physician assistants 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
Marie P. Nizienski treated 56 Medicare patients in 2024, average age 77
CMS counts 56 Medicare patients who saw Marie Nizienski in 2024. The largest group is 65 to 74, with 22 patients. 75% of them have high blood pressure, and 70% have high cholesterol. Their average risk score is 2.00, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marie Nizienski's median patient age at 70, with 24% women.
Marie Nizienski's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marie Nizienski's Medicare patients by sex, 2024
- Women1832%
- Men3868%
Chronic conditions among Marie Nizienski's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Chronic kidney disease61%
- Arthritis59%
- Cancer43%
- Diabetes39%
- Ischemic heart disease34%
- Heart failure32%
Share of Medicare patients with each condition. A patient can have several.
Marie Nizienski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women24%
- Men76%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marie P. Nizienski wrote 2,076 Medicare Part D claims in 2024
In 2024, Marie Nizienski wrote 2,076 Medicare Part D claims for 769 patients. 89% of them were for generic drugs.
Marie Nizienski's Part D claims by kind of drug, 2024
- Generic1,849 claims89%
- Brand-name and other227 claims11%
Drug classes CMS tracks in Marie Nizienski's Part D claims, 2024
- Opioids1%17 of 2,076 claims
- Antibiotics23%486 of 2,076 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 Marie P. Nizienski takes part in Medicare
Marie Nizienski 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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Marie P. Nizienski received $610 in industry payments in 2025
CMS Open Payments shows 25 general payments to Marie Nizienski from 14 drug and device companies in 2025. Food and beverage make up the largest share, 87% of the total. Astellas Pharma US Inc paid the most, $130.
General payments to Marie Nizienski by kind, 2025 to 2025
- Food and beverage$53287%
- Education$7813%
Companies that paid Marie Nizienski 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 Marie P. Nizienski'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 Marie P. Nizienski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marie P. Nizienski's NPI number?
Marie P. Nizienski's NPI number is 1144517939. It was assigned on June 30, 2011, and it is active in the NPI Registry.
What does Marie P. Nizienski specialize in?
Marie P. Nizienski is a physician assistant in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marie P. Nizienski practice?
Marie Nizienski practices at 100 Michigan St NE, Grand Rapids, MI 49503. Marie Nizienski's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Marie Nizienski to 3 hospitals and 1 group practice or clinic.
What is Marie P. Nizienski's office phone number?
The practice phone on file for Marie Nizienski is (616) 391-1774.
What is Marie P. Nizienski's medical license number?
Marie Nizienski holds Michigan license 5601006046.
Which hospitals is Marie P. Nizienski affiliated with?
Marie Nizienski practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan. Marie Nizienski is also affiliated with Trinity Health Grand Rapids Hospital. Dmand AI links Marie Nizienski to 3 more hospitals.
What medical group is Marie P. Nizienski part of?
Marie Nizienski is linked to Urology Associates PC.
Does Marie P. Nizienski accept Medicare?
Yes. CMS lists Marie Nizienski as accepting Medicare assignment.
How many Medicare patients does Marie P. Nizienski see?
CMS counts 56 Medicare patients who saw Marie Nizienski in 2024, with an average age of 77.
Has Marie P. Nizienski received payments from drug or device companies?
CMS Open Payments shows $610 in general payments to Marie Nizienski from 14 companies from 2025 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Marie P. Nizienski been practicing?
Marie Nizienski graduated from medical school in 2011, 15 years ago.
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