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MS. GIANNA NOELLE MARTELLI LCSW
NPI 1013574656
Social Worker - Clinical in Chicago, IL

Active since May 20, 2019PECOS Enrolled
1541 W DEVON AVE, CHICAGO, IL 60660(773) 250-5222 Get Directions Write a Review

NPPES record last updated: June 5, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 5, 2025, Nov 18, 2024, May 20, 2019 (3 updates tracked since 2019).

About Ms. Gianna Noelle Martelli Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. GIANNA NOELLE MARTELLI LCSW (NPI 1013574656) is an individual clinical provider in Chicago, Illinois, licensed in Illinois (149021236) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1013574656
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. GIANNA NOELLE MARTELLICredential: LCSW
Location Address1541 W DEVON AVEChicago, IL 60660-1313
Mailing AddressPo Box 746715Atlanta, GA 30374-6715 · (773) 352-1515 · Fax (312) 929-0373
Phone(773) 250-5222
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMay 20, 2019
Last NPPES UpdateJune 5, 20253 updates tracked since enumeration
NPPES CertifiedJune 5, 2025
✔ NPI 1013574656 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in IL · 149021236✔ Licensed in CO · CSW.09930773
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
1541 W DEVON AVE, Chicago, IL 60660
Open in Google Maps ↗

Secondary Practice Locations 2

Location 15996 E 64th AveCommerce City, CO 80022-3317 · Phone (720) 463-6758
Location 2822 Summit St Ste 84Elgin, IL 60120-4316 · Phone (847) 306-7093

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Gianna Noelle Martelli Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9638402068
PECOS Enrollment IDI20190617002845, I20241121004845
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Gianna Martelli reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Oak Street Health Physicians Group, PC
20 mi
Primary Care
1715 E 95TH ST
Chicago, IL 60617
  • Reassigned Medicare billing, Illinois enrollment
  • 343 clinicians in this Medicare group
NPI 1083051643 (773) 768-4437
Oak Street Health Physicians Group Of Colorado, PLLC
912 mi
Primary Care
740 PEORIA ST
Aurora, CO 80011
  • Reassigned Medicare billing, Colorado enrollment
  • 50 clinicians in this Medicare group
NPI 1760197891 (720) 531-7111

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
51 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60660 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $60.08 – $183.39
Typical copayment $0.00 (range $15.02 – $45.84)
Most-billed visit code NA
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

EMMA FLORES
Social Worker (Clinical)
1541 W DEVON AVE
CHICAGO, IL 60660
Cook County (773) 250-5222
OAK STREET HEALTH: EDGEWATER
Clinic/Center (Primary Care)
1541 W DEVON AVE
CHICAGO, IL 60660
Cook County (312) 810-8763
DANNY MICHAEL MSW, LSW
Social Worker (Clinical)
1541 W DEVON AVE
CHICAGO, IL 60660
Cook County (773) 250-5222
NATALYA VLADIMIRSKIY M.D.
Internal Medicine
1541 W DEVON AVE
CHICAGO, IL 60660
Cook County (773) 250-5222
ELLEN RABAUT DNP
Nurse Practitioner (Family)
1541 W DEVON AVE
CHICAGO, IL 60660
Cook County (773) 250-5222
MS. DEBRA FRANCES FOX FNP
Nurse Practitioner (Family)
1541 W DEVON AVE
CHICAGO, IL 60660
Cook County (773) 250-5222
MS. ANGELA D ROGERS FNP, MSN
Nurse Practitioner (Family)
1541 W DEVON AVE
CHICAGO, IL 60660
Cook County (773) 250-5222
ANDREA MINA KHOSROPOUR MD
Family Medicine
1541 W DEVON AVE
CHICAGO, IL 60660
Cook County (773) 250-5222

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gianna Martelli's NPI number?

The NPI number for Gianna Martelli is 1013574656. It was assigned to this individual provider in the NPPES registry on May 20, 2019.

Where is Gianna Martelli located?

Gianna Martelli practices at 1541 W Devon Ave, Chicago, IL 60660. The listed phone number is (773) 250-5222.

What is Gianna Martelli's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Gianna Martelli enrolled in Medicare?

Yes. Gianna Martelli is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Gianna Martelli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gianna Martelli reassigns Medicare benefits to 2 organizations: Oak Street Health Physicians Group, PC (Chicago, IL) and Oak Street Health Physicians Group Of Colorado, PLLC (Aurora, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gianna Martelli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gianna Martelli was last updated on June 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.