Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SHANNON MARIE ALLEGRETTI PSY.D.
NPI 1407989080
Psychologist - Clinical in Naperville, IL

Q: What is Shannon Allegretti's NPI number?

The NPI number for Shannon Allegretti is 1407989080. It was assigned to this individual provider in the NPPES registry on March 13, 2007.

Q: What is Shannon Allegretti's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since March 13, 2007PECOS EnrolledAccepts Medicare Assignment

640 S WASHINGTON ST, NAPERVILLE, IL 60540(815) 942-6323(815) 942-6323 Get Directions Write a Review

NPPES record last updated: September 27, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 27, 2026, May 18, 2023 (2 updates tracked since 2023).

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About Dr. Shannon Marie Allegretti Psy.d. NPPES

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

DR. SHANNON MARIE ALLEGRETTI PSY.D. (NPI 1407989080) is an individual clinical provider in Naperville, Illinois, licensed in Illinois (071005853) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1407989080

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. SHANNON MARIE ALLEGRETTICredential: PSY.D.

Location Address640 S WASHINGTON STNaperville, IL 60540-6603

Mailing AddressPo Box 713260Chicago, IL 60677-1260 · (630) 469-9200

Phone(815) 942-6323

Fax(815) 942-6323

Sole ProprietorNo

Medical School CMSOtherGraduated 1997

Enumeration DateMarch 13, 2007

Last NPPES UpdateSeptember 27, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 27, 2026

✔ NPI 1407989080 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 8

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in IL · 071005853

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

Also ListedPsychologistTaxonomy 103T00000X · License 071005853 (IL)

Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X · License 071005853 (IL)

Also ListedPsychologist · CounselingTaxonomy 103TC1900X · License 071005853 (IL)

Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License 071005853 (IL)

Also ListedPsychologist · FamilyTaxonomy 103TF0000X · License 071005853 (IL)

Also ListedPsychologist · PsychoanalysisTaxonomy 103TP0814X · License 071005853 (IL)

Also ListedPsychologist · Group PsychotherapyTaxonomy 103TP2701X · License 071005853 (IL)

640 S WASHINGTON ST, Naperville, IL 60540

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Other Identifiers 3

Other118891250288IL · Humana

Other02232050IL · Blue Cross Blue Shield

Other4844333000IL · Magellan

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Shannon Marie Allegretti Psy.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335547314

PECOS Enrollment IDI20211005002228

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 Reassignment

Medicare enrollment records show Shannon Allegretti reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dupage Medical Group Ltd

8.3 mi

Multi-Specialty

1100 W 31ST ST, STE 300
Downers Grove, IL 60515

Reassigned Medicare billing, Illinois enrollment
1,061 clinicians in this Medicare group

NPI 1801833983 (630) 469-9200

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 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

$181.38 typical visit price

range $59.81 – $181.38

Typical copayment $45.34 (range $14.95 – $45.34)

Most-billed visit code 99205

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

Most-billed visit code 99214

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 20

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

DR. LISA MARIE BORGEALT D.C., APN

Nurse Practitioner

640 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (815) 942-6323

MELANIE JOHNSEN

Social Worker (Clinical)

640 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (815) 942-6323

DR. MICHAEL T FEINGOLD MD

Obstetrics & Gynecology

640 S WASHINGTON ST, STE 220
NAPERVILLE, IL 60540

Dupage County (630) 428-1500

SEEMA GUPTA MD PC

Internal Medicine

640 S WASHINGTON ST, STE 280
NAPERVILLE, IL 60540

Dupage County (630) 778-9362

DR. ELISEO ROSEL ROQUIZ JR. D.O.

Family Medicine

640 S WASHINGTON ST, 350
NAPERVILLE, IL 60540

Dupage County (630) 717-2646

MRS. SARA LEIGH GIBSON LPC

Counselor (Professional)

640 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (708) 448-0884

MARILYN MISTRY MD

Family Medicine

640 S WASHINGTON ST, STE 350
NAPERVILLE, IL 60540

Dupage County (630) 355-8000

DR. RAKESH MARWAHA M.D.

Internal Medicine

640 S WASHINGTON ST, STE 380
NAPERVILLE, IL 60540

Dupage County (630) 527-6390

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 Shannon Allegretti's NPI number?

The NPI number for Shannon Allegretti is 1407989080. It was assigned to this individual provider in the NPPES registry on March 13, 2007.

Where is Shannon Allegretti located?

Shannon Allegretti practices at 640 S Washington St, Naperville, IL 60540. The listed phone number is (815) 942-6323.

What is Shannon Allegretti's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Shannon Allegretti enrolled in Medicare?

Yes. Shannon Allegretti is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Shannon Allegretti's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shannon Allegretti reassigns Medicare benefits to Dupage Medical Group Ltd (Downers Grove, IL). The 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 Shannon Allegretti'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 Shannon Allegretti was last updated on September 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days 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.