Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Margaret Madras, APRN,BC

Nurse Practitioner in Fairview Heights, IL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1134158728

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Registry record

Entity type Individual (Type 1)

Name Mary Margaret Madras

Credential APRN,BC

Sex Female

Practice address 6505 N Illinois St, Fairview Heights, IL, 62208

Phone (314) 687-2734

Enumeration date Jul 3, 2006

Last updated in NPPES Oct 23, 2020

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 140767 (MO) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 140767 (MO) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 277000522 (IL) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Mary Madras?

Mary Madras is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-23.