MRS. JILLIAN R GRZEGORCZYK RN
NPI 1942789805
Nurse Practitioner - Family in Muskegon, MI

Q: What is Jillian Grzegorczyk's NPI number?

The NPI number for Jillian Grzegorczyk is 1942789805. It was assigned to this individual provider in the NPPES registry on August 11, 2018. The provider is also known as Jillian Renee Kilduff.

Q: What is Jillian Grzegorczyk's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Active since August 11, 2018PECOS EnrolledAccepts Medicare Assignment

2009 HOLTON RD, MUSKEGON, MI 49445(616) 935-3479(616) 935-3481 Get Directions Write a Review

NPPES record last updated: April 23, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 23, 2026, Dec 1, 2025, Mar 26, 2021 and 2 more (5 updates tracked since 2018).

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About Mrs. Jillian R Grzegorczyk Rn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. JILLIAN R GRZEGORCZYK RN (NPI 1942789805) is an individual family provider in Muskegon, Michigan, licensed in Michigan (4704274790) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1942789805

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMRS. JILLIAN R GRZEGORCZYKCredential: RN

Location Address2009 HOLTON RDMuskegon, MI 49445-1578

Mailing Address100 Michigan St Ne, Mc 845Grand Rapids, MI 49503-2560

Phone(616) 935-3479

Fax(616) 935-3481

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateAugust 11, 2018

Last NPPES UpdateApril 23, 20265 updates tracked since enumeration

NPPES CertifiedApril 23, 2026

✔ NPI 1942789805 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in MI · 4704274790

2009 HOLTON RD, Muskegon, MI 49445

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Other Names 1

Former Name (1)Jillian Renee Kilduff

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, McLaren Health Plan Community.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mrs. Jillian R Grzegorczyk Rn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1355687427

PECOS Enrollment IDI20190110000410

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

176 services102 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

76 services65 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Spectrum Health

Acute Care Hospitals · Grand Rapids, MI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230038

Location100 Michigan St NEGrand Rapids, MI 49503 · Kent County

Emergency services Birthing friendly

Covenant Medical Center

Acute Care Hospitals · Saginaw, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230070

Location1447 N HarrisonSaginaw, MI 48602 · Saginaw County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49445 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$84.74 typical visit price

range $54.34 – $166.68

Typical copayment $21.18 (range $13.58 – $41.67)

Most-billed visit code 99203

Established Patient

$96.44 typical visit price

range $17.09 – $135.40

Typical copayment $24.11 (range $4.27 – $33.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DIANA E DAVIDSON MD

Family Medicine

2009 HOLTON RD
N MUSKEGON, MI 49445

Muskegon County (231) 291-8399

KRISHNA CHAITANYA MEKA D.O.

Internal Medicine (Gastroenterology)