What is Mary Maragos's NPI number?

Mary Maragos's National Provider Identifier (NPI) is 1538117445, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Maragos's specialty?

Mary Maragos is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Mary Maragos located?

Mary Maragos's practice location on file with NPPES is 500 Wilcox St, Joliet, IL 60435-6169.

What is Mary Maragos's phone number?

The practice phone number listed in the NPPES registry for Mary Maragos is (815) 740-3815.

Is Mary Maragos's NPI active?

Yes — Mary Maragos's NPI (1538117445) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Mary Maragos, MSN,APRN,FNP

NPI 1538117445 · Family Nurse Practitioner · Joliet, IL

Mary Maragos, MSN,APRN,FNP is a Family Nurse Practitioner provider in Joliet, IL (NPI 1538117445).

Provider details

NPI number: 1538117445
Entity type: Individual
Primary specialty: Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Credential: MSN,APRN,FNP
Sex: Female

Specialties & taxonomies

Family Nurse PractitionerPrimary363LF0000X
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Detailed profile(84/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

500 Wilcox St

Joliet, IL 60435-6169

Phone: (815) 740-3815

Fax: (815) 740-4243

Street-level locationGet directions

More IL providers

Mailing address

4513 Harvey Avenue

Western Springs, IL 60558

Enumerated: 2006-05-04
Last updated: 2007-07-08

Frequently asked questions

What is Mary Maragos's NPI number?: Mary Maragos's National Provider Identifier (NPI) is 1538117445, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mary Maragos's specialty?: Mary Maragos is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Mary Maragos located?: Mary Maragos's practice location on file with NPPES is 500 Wilcox St, Joliet, IL 60435-6169.
What is Mary Maragos's phone number?: The practice phone number listed in the NPPES registry for Mary Maragos is (815) 740-3815.
Is Mary Maragos's NPI active?: Yes — Mary Maragos's NPI (1538117445) is active in the NPPES registry as of the last update on 2007-07-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.