Jillian R. Grzegorczyk, RN
- Medicare patients, 2024
- 161
- Part D claims, 2024
- 1,334
- Hospital affiliations
- 2
- Industry payments
- $146
- Medical groups
- 3
- 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 Jillian Grzegorczyk'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.
Jillian R. Grzegorczyk is a family nurse practitioner in Grand Rapids, Michigan
Jillian Grzegorczyk practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.
Jillian Grzegorczyk's NPI, 1942789805, was assigned on August 11, 2018. Jillian Grzegorczyk holds Michigan license 4704274790.
- NPI
- 1942789805NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355687427
- NPI enumeration date
- August 11, 2018
- 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
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Jillian R. Grzegorczyk practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan
Jillian Grzegorczyk'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
Jillian R. Grzegorczyk is affiliated with 5 sites of care and 3 medical groups
Jillian Grzegorczyk's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Jillian Grzegorczyk is also affiliated with Covenant Medical Center Harrison. The medical group on file is Corewell Health Medical Group West. Dmand AI also links Jillian Grzegorczyk to 3 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Jillian R. Grzegorczyk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jillian Grzegorczyk practices, 5 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 |
| +4 more sites and 2 medical groups | 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.
Jillian R. Grzegorczyk is one of 4,420 family nurse practitioners in Michigan
Family is Jillian Grzegorczyk's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Jillian Grzegorczyk is licensed in Michigan.
Specialties and state licenses
- Family nurse practitioner, MichiganPrimary
Family nurse practitioners near Jillian Grzegorczyk
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
Jillian R. Grzegorczyk treated 161 Medicare patients in 2024, average age 76
CMS counts 161 Medicare patients who saw Jillian Grzegorczyk in 2024. The largest group is 75 to 84, with 54 patients. 75% of them have heart failure, and 75% have high blood pressure. 22% are also on Medicaid. Their average risk score is 2.68, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Jillian Grzegorczyk's median patient age at 69, with 54% women.
Jillian Grzegorczyk's Medicare patients by age, 2024
Jillian Grzegorczyk's Medicare patients by sex, 2024
- Women7345%
- Men8855%
Chronic conditions among Jillian Grzegorczyk's Medicare patients, 2024
- Heart failure75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Chronic kidney disease65%
- Atrial fibrillation63%
- Arthritis58%
- Diabetes56%
Share of Medicare patients with each condition. A patient can have several.
Jillian Grzegorczyk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Jillian R. Grzegorczyk wrote 1,334 Medicare Part D claims in 2024
In 2024, Jillian Grzegorczyk wrote 1,334 Medicare Part D claims for 282 patients. 72% of them were for generic drugs.
Jillian Grzegorczyk's Part D claims by kind of drug, 2024
- Generic957 claims72%
- Brand-name377 claims28%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Jillian R. Grzegorczyk takes part in Medicare
Jillian Grzegorczyk 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.
Jillian R. Grzegorczyk received $146 in industry payments in 2025
CMS Open Payments shows 6 general payments to Jillian Grzegorczyk from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $72.
Companies that paid Jillian Grzegorczyk 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 Jillian R. Grzegorczyk'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 Jillian R. Grzegorczyk
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jillian R. Grzegorczyk's NPI number?
Jillian R. Grzegorczyk's NPI number is 1942789805. It was assigned on August 11, 2018, and it is active in the NPI Registry.
What does Jillian R. Grzegorczyk specialize in?
Jillian R. Grzegorczyk is a family nurse practitioner in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Jillian R. Grzegorczyk practice?
Jillian Grzegorczyk practices at 100 Michigan St NE, Grand Rapids, MI 49503. Jillian Grzegorczyk's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Jillian Grzegorczyk to 3 group practices and clinics and 2 medical groups.
What is Jillian R. Grzegorczyk's office phone number?
The practice phone on file for Jillian Grzegorczyk is (616) 391-1774.
What is Jillian R. Grzegorczyk's medical license number?
Jillian Grzegorczyk holds Michigan license 4704274790.
Which hospitals is Jillian R. Grzegorczyk affiliated with?
Jillian Grzegorczyk practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan. Jillian Grzegorczyk is also affiliated with Covenant Medical Center Harrison.
What medical group is Jillian R. Grzegorczyk part of?
Jillian Grzegorczyk is linked to Corewell Health Medical Group West. Dmand AI links Jillian Grzegorczyk to 2 more medical groups.
Does Jillian R. Grzegorczyk accept Medicare?
Yes. CMS lists Jillian Grzegorczyk as accepting Medicare assignment.
How many Medicare patients does Jillian R. Grzegorczyk see?
CMS counts 161 Medicare patients who saw Jillian Grzegorczyk in 2024, with an average age of 76.
Has Jillian R. Grzegorczyk received payments from drug or device companies?
CMS Open Payments shows $146 in general payments to Jillian Grzegorczyk from 4 companies from 2025 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Jillian R. Grzegorczyk been practicing?
Jillian Grzegorczyk graduated from medical school in 2018, 8 years ago.
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