Nancy Gryniewicz, M.D
Quick Facts
NPI Validation Status: Verified
Provider Overview
NANCY GRYNIEWICZ, M.D is a Family Medicine provider based in Oak Park, IL who has been registered with CMS since 2005. This NPI is currently Active under CMS NPPES registry.
Provider Details
Practice Location
Specialties & Licenses
Mailing Address
How to Use This NPI
For Insurance Billing
Use NPI 1558368043 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.
For Credentialing
Reference NPI 1558368043for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.
For Patients
Share NPI 1558368043 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.
About Family Medicine
Family Medicine physicians provide comprehensive primary care to patients of all ages, managing acute illnesses, tracking chronic conditions, and emphasizing preventive healthcare.
Similar Providers in Oak Park
Forrest Robinson, DO
📍 Oak Park, IL 60301-1095
Ingrid Liu, DO
📍 Oak Park, IL 60304-1950
Mary Hutton, MD
📍 Oak Park, IL 60301-1095
Mary Obeso, MD
📍 Oak Park, IL 60301-1015
Stephen Humowiecki, MD
📍 Oak Park, IL 60301-1015
Lucy Fox, MD
📍 Oak Park, IL 60304-1091
Other Healthcare Providers in Oak Park
William Finn, DPM
PodiatryShafa Amirsoltani, DDS
DentistryDreher Orthopedic Industries, Inc.
Specialty not listedGerald Lynch, MD
General SurgeryNagulapalli Rao, MD
Specialty not listedDavid Springer, M.D
OphthalmologyOther Family Medicine Providers in Illinois
People Also Ask
What is Nancy Gryniewicz's NPI number?
Is Nancy Gryniewicz's NPI currently active?
What does Nancy Gryniewicz specialize in?
207Q00000X.