Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marissa Paige Mahan, DNP, FNP-BC

Family Nurse Practitioner in Chatham, IL · enumerated 2020.

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

National Provider Identifier

1215531264

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Marissa Paige Mahan

Credential DNP, FNP-BC

Sex Female

Practice address 101 E Plummer Blvd, Chatham, IL, 62629

Phone (217) 483-3487

Fax (217) 483-8150

Enumeration date Nov 30, 2020

Last updated in NPPES May 20, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2020014749 (MO) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209021387 (IL) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP credential

Other identifiers

Identifier	Type	State	Issuer
041443199	Other	IL	RN LICENSE

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 is the NPI number for Marissa Mahan?

The National Provider Identifier (NPI) for Marissa Mahan is 1215531264, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marissa Mahan practice?

The practice location on file with NPPES is in Chatham, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Michael Sheedy Family Medicine Physician · Chatham, IL NPI 1790758894 Gerald Suchomski Family Medicine Physician · Chatham, IL NPI 1538133350 Kathleen Sigle Family Nurse Practitioner · Chatham, IL NPI 1316912561 Christina Scheibler-Ventress Family Medicine Physician · Chatham, IL NPI 1831148022 John Taylor Chiropractor · Chatham, IL NPI 1578572665 Healthcare Network Associates Family Medicine Physician · Chatham, IL NPI 1891706073 Valerie Creviston Physical Therapist · Chatham, IL NPI 1093856569 Gustavo Mosquera Family Medicine Physician · Chatham, IL NPI 1033395629

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-20.