Margaret Hartig
About this NPIWhat this record shows.
NPI 1225120033 is registered to Margaret Hartig, a Certified Registered Nurse Anesthetist practising at 676 N Saint Clair St Ste 10-548 in Chicago, Illinois. Certified Registered Nurse Anesthetist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Margaret Hartig has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Beyond the registryWhat this record adds.
It is enrolled in Medicare, linking to 6 PECOS enrollment records (each with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 2,513 Certified Registered Nurse Anesthetist providers on file in Illinois.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
Your brand here.
Medicare enrollment
This provider holds 6 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20081209000172Certified Registered Nurse Anesthetist (CRNA)IL
- I20240604000902Certified Registered Nurse Anesthetist (CRNA)VA
- I20240612004039Certified Registered Nurse Anesthetist (CRNA)AR
- I20241211001872Certified Registered Nurse Anesthetist (CRNA)MA
- I20250429002924Certified Registered Nurse Anesthetist (CRNA)MO
- I20251209002537Certified Registered Nurse Anesthetist (CRNA)PA
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Margaret Hartig accepts. To confirm in-network status with your specific health plan, contact Margaret Hartig directly at (312) 695-4387.
Frequently asked
Yes. NPI 1225120033 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Certified Registered Nurse Anesthetist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (312) 695-4387.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Margaret Hartig is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 2,513 Certified Registered Nurse Anesthetist providers are registered in Illinois, and Margaret Hartig is one of them. The figure refreshes each month from the federal source.