MICHAEL EDWARD GRZELAK M.D.
NPI 1386808913
Hospitalist in Winfield, IL

Active since July 14, 2008PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
25 N WINFIELD RD, WINFIELD, IL 60190(630) 933-4700(630) 933-4427 Get Directions Write a Review

NPPES record last updated: January 18, 2018. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jan 18, 2018, Oct 26, 2016, Sep 2, 2016 (3 updates tracked since 2016).

About Michael Edward Grzelak M.d. NPPES

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

MICHAEL EDWARD GRZELAK M.D. (NPI 1386808913) is an individual hospitalist provider in Winfield, Illinois, licensed in Illinois (036124898) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Central Dupage Hospital, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1386808913
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameMICHAEL EDWARD GRZELAKCredential: M.D.
Location Address25 N WINFIELD RDWinfield, IL 60190-1295
Mailing Address25 N Winfield RdWinfield, IL 60190-1295 · (630) 933-4700 · Fax (630) 933-4427
Fax(630) 933-4427
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateJuly 14, 2008
Last NPPES UpdateJanuary 18, 20183 updates tracked since enumeration
NPI 1386808913 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in IL · 036124898
Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036124898 (IL)
25 N WINFIELD RD, Winfield, IL 60190

Other Identifiers 3

Other206147IL · Medicare Ptan Group
OtherF400321566IL · Medicare Ptan Individual
Other036124898IL · Medicaid

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

Michael Edward Grzelak M.d. 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 ID244424075
PECOS Enrollment IDI20101104001632
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 7

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 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 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
374 services195 patients
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.
251 services144 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
138 services135 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
94 services94 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
18 services18 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.
17 services17 patients

Hospital Affiliations CMS Care Compare 2

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

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Valley West Community Hospital

Critical Access Hospitals · Sandwich, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number141340
Location1301 North Main StreetSandwich, IL 60548 · De Kalb County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60190 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

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.

Surgery
25 N WINFIELD RD, STE 410
WINFIELD, IL 60190
Surgery
25 N WINFIELD RD, STE 410
WINFIELD, IL 60190
Internal Medicine (Cardiovascular Disease)
25 N WINFIELD RD, STE 300
WINFIELD, IL 60190
Internal Medicine (Cardiovascular Disease)
25 N WINFIELD RD, STE 300
WINFIELD, IL 60190
Urology
25 N WINFIELD RD, STE 405
WINFIELD, IL 60190
Pediatrics
25 N WINFIELD RD
WINFIELD, IL 60190
Internal Medicine (Clinical Cardiac Electrophysiology)
25 N WINFIELD RD, STE 300
WINFIELD, IL 60190
Emergency Medicine
25 N WINFIELD RD
WINFIELD, IL 60190

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1386808913, enumerated as an "individual" on July 14, 2008.

The provider is located at 25 N WINFIELD RD WINFIELD, IL 60190 and the phone number is (630) 933-4700.

Hospitalist with taxonomy code 208M00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.

Michael Grzelak is affiliated with: NORTHWESTERN MEDICINE CENTRAL DUPAGE HOSPITAL and VALLEY WEST COMMUNITY HOSPITAL.