DR. NANCY GRYNIEWICZ M.D.
NPI 1558368043
Family Medicine in Oak Park, IL

Active since June 30, 2005PECOS EnrolledAccepts Medicare Assignment
965 LAKE ST, OAK PARK, IL 60301(708) 383-0400(708) 383-4314 Get Directions Write a Review

NPPES record last updated: May 24, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Nancy Gryniewicz M.d. NPPES

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

DR. NANCY GRYNIEWICZ M.D. (NPI 1558368043) is an individual family medicine provider in Oak Park, Illinois, licensed in Illinois (036089707) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS, is affiliated with Loyola Gottlieb Memorial Hospital, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1558368043
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. NANCY GRYNIEWICZCredential: M.D.
Location Address965 LAKE STOak Park, IL 60301-1292
Mailing Address965 Lake StOak Park, IL 60301-1292 · (708) 383-0400 · Fax (708) 383-4314
Fax(708) 383-4314
Sole ProprietorYes
Medical School CMSOtherGraduated 1994
Enumeration DateJune 30, 2005
Last NPPES UpdateMay 24, 2022
NPPES CertifiedMay 24, 2022
NPI 1558368043 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in IL · 036089707
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
965 LAKE ST, Oak Park, IL 60301

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

Dr. Nancy Gryniewicz 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 ID3274657150
PECOS Enrollment IDI20100830000312
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 22

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.

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458
This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.
722 services51 patients
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490
Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.
641 services83 patients
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457
This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.
520 services51 patients
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454
This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.
475 services49 patients
Collection and interpretation of physical parameters stored in computers and/or transmitted by the patient and/or caregiver to qualified health care professional, requiring 30 minutes or more, per 30 days 99091
This service involves gathering and analyzing health data from a patient, which is digitally stored and sent to a healthcare professional. This may include heart rate, blood pressure, or blood sugar levels. The process takes at least 30 minutes and is repeated every 30 days.
443 services49 patients
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439
Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.
269 services78 patients

Hospital Affiliations CMS Care Compare 5

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

Loyola Gottlieb Memorial Hospital

Acute Care Hospitals · Melrose Park, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140008
Location701 West North AveMelrose Park, IL 60160 · Cook County
Emergency services

West Suburban Medical Center

Acute Care Hospitals · Oak Park, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140049
Location3 Erie CourtOak Park, IL 60302 · Cook County
Birthing friendly

Macneal Hospital

Acute Care Hospitals · Berwyn, IL
2/5 CMS rating
OwnershipProprietary
CMS Certification Number140054
Location3249 South Oak Park AvenueBerwyn, IL 60402 · Cook County
Emergency services Birthing friendly

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

Loyola University Medical Center

Acute Care Hospitals · Maywood, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140276
Location2160 S 1st AvenueMaywood, IL 60153 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60301 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%161 patients5/55-star benchmark: 100%
Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
100%146 patients5/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
100%175 patients5/55-star benchmark: 100%
Urinary Incontinence: Assessment of Presence or Absence of Urinary Incontinence in Women Aged 65 Years and Older
Percentage of female patients aged 65 years and older who were assessed for the presence or absence of urinary incontinence within 12 months
100%90 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers19 claims66 services$6.91 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
3 suppliers12 claims25 services$1.11 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 9

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

Internal Medicine
965 LAKE ST
OAK PARK, IL 60301
Dietitian, Registered
965 LAKE ST
OAK PARK, IL 60301
Dentist (Periodontics)
965 LAKE ST, SUITE 6
OAK PARK, IL 60301
Family Medicine
965 LAKE ST
OAK PARK, IL 60301
Family Medicine
965 LAKE ST
OAK PARK, IL 60301
Family Medicine
965 LAKE ST
OAK PARK, IL 60301
Nurse Practitioner
965 LAKE ST
OAK PARK, IL 60301
Internal Medicine
965 LAKE ST
OAK PARK, IL 60301

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nancy Gryniewicz's NPI number?

The NPI number for Nancy Gryniewicz is 1558368043. It was assigned to this individual provider in the NPPES registry on June 30, 2005.

Where is Nancy Gryniewicz located?

Nancy Gryniewicz practices at 965 Lake St, Oak Park, IL 60301. The listed phone number is (708) 383-0400.

What is Nancy Gryniewicz's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Nancy Gryniewicz enrolled in Medicare?

Yes. Nancy Gryniewicz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Nancy Gryniewicz affiliated with any hospitals?

According to CMS data, Nancy Gryniewicz is affiliated with Loyola Gottlieb Memorial Hospital, West Suburban Medical Center, Macneal Hospital, Northwestern Medicine Central Dupage Hospital and Loyola University Medical Center.

When was this NPI record last updated?

The NPPES record for Nancy Gryniewicz was last updated on May 24, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.