Jillian Grzegorczyk, RN
Family Nurse Practitioner · Muskegon, MI
Jillian Grzegorczyk, RN is a family nurse practitioner with a practice address in Muskegon, Michigan, and NPI 1942789805, issued on Aug 11, 2018. Check the license (Michigan 4704274790, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jillian Grzegorczyk
- Credential
- RN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 4704274790 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2009 Holton RD, Muskegon, MI 49445
- Phone
- (616) 935-3479
- Enumerated
- Aug 11, 2018
- Entity
- Type 1 · individual
Also registered at 2009 Holton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kilee Aamodt, PA-CPhysician Assistant1578964300
- Earl Beam, PAPhysician Assistant1174589261
- Paul Bradley, DNP, FNP-CFamily Nurse Practitioner1164153672
- Melissa Brown, D.O.Family Medicine Physician1063605822
- Anita Buckner, FNPFamily Nurse Practitioner1073175303
- Anne Clancy, DPTPhysical Therapist1770719734
Verify Jillian Grzegorczyk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704274790Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2% more Medicare Part D claims than the average family nurse practitioner in 2024
1,334 Medicare Part D claims for 282 beneficiaries, against an average of 1,302 among the 128,048 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Spironolactone223 claims
- Metoprolol Succinate179 claims
- Jardiance127 claims
- Entresto100 claims
- Furosemide99 claims
- Farxiga70 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $348.10
18 payments, mostly food and beverage; the largest payer was Pfizer Inc.. The 91,435 providers of this specialty with any payment received $675.31 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospital and facility affiliations
- Covenant Medical Center IncSaginaw, MI
- Spectrum Health Primary Care PartnersMuskegon, MI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
47 family nurse practitioner records list a Muskegon practice address
They are 47 of the 2,646 NPPES records with a Muskegon practice address, and 5,003 family nurse practitioner records in Michigan.
All 47 in Muskegon → All 5,003 in Michigan → Every provider in Muskegon →
Other family nurse practitioner records in Michigan
- Leila Abbas, NPInkster, MI1356857056
- Norma AbbottCaro, MI1700321346
- Bianca Abboud, FNPSaginaw, MI1588437404
- Fatima Abdallah, FNP-BCDearborn, MI1831783695
- Fatmeh Abdallah, FNPDearborn, MI1700678745
- Houda AbdallahOak Park, MI1811524655
- Zienab Abdallah, FNPDearborn, MI1417718065
- Deya Abdelbaki, NPBelleville, MI1427582311
- Nisreen AbdolkarimWestland, MI1124682307
- Aundi Abdul-Latif, NPSouthfield, MI1730954538
Common questions
What is Jillian Grzegorczyk, RN's NPI number?
Jillian Grzegorczyk, RN's National Provider Identifier (NPI) is 1942789805, issued on Aug 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Jillian Grzegorczyk, RN located?
The NPPES record lists a practice address at 2009 Holton RD, Muskegon, MI, 49445. Phone: (616) 935-3479. Providers update this record themselves, so call before visiting.
How can I verify Jillian Grzegorczyk, RN's license?
NPPES lists Michigan license number 4704274790, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Jillian Grzegorczyk, RN prescribe under Medicare Part D?
In 2024, Jillian Grzegorczyk, RN had 1,334 Medicare Part D claims for 282 beneficiaries; the average among family nurse practitioner prescribers was 1,302. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.