DR. JENNIFER DUFF PSY.D.
NPI 1649492315
Psychologist - Clinical in Naperville, IL

Q: What is Jennifer Duff's NPI number?

The NPI number for Jennifer Duff is 1649492315. It was assigned to this individual provider in the NPPES registry on May 3, 2007.

Q: What is Jennifer Duff's specialty?

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

Q: Is Jennifer Duff enrolled in Medicare?

No. Jennifer Duff has opted out of Medicare through February 8, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Jennifer Duff was last updated on December 10, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.

Active since May 03, 2007Opted out of Medicare · through Feb 8, 2028

1020 E OGDEN AVE, SUITE 312, NAPERVILLE, IL 60563(630) 420-9707(630) 420-9708 Get Directions Write a Review

NPPES record last updated: December 10, 2013. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Jennifer Duff Psy.d. NPPES

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

DR. JENNIFER DUFF PSY.D. (NPI 1649492315) is an individual clinical provider in Naperville, Illinois, licensed in Illinois (071007188) and active in the NPI registry since May 2007. She has opted out of Medicare through February 8, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1649492315

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. JENNIFER DUFFCredential: PSY.D.

Location Address1020 E OGDEN AVE, SUITE 312Naperville, IL 60563-8609

Mailing Address1020 E Ogden Ave, Suite 312Naperville, IL 60563-8609 · (630) 420-9707 · Fax (630) 420-9708

Phone(630) 420-9707

Fax(630) 420-9708

Sole ProprietorYes

Enumeration DateMay 3, 2007

Last NPPES UpdateDecember 10, 2013

✔ NPI 1649492315 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in IL · 071007188

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.

1020 E OGDEN AVE, Naperville, IL 60563

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Jennifer Duff Psy.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from February 8, 2016 through February 8, 2028.

Opt-Out Effective DateFebruary 8, 2016

Opt-Out In Effect ThroughFebruary 8, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60563 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.

ZAIN INCORPORATED

Pharmacy (Community/Retail Pharmacy)

1020 E OGDEN AVE, SUITE 114
NAPERVILLE, IL 60563

Dupage County (630) 922-1100

DU PAGE MEDICAL GROUP LTD

Durable Medical Equipment & Medical Supplies

1020 E OGDEN AVE, STE 301
NAPERVILLE, IL 60563

Dupage County (630) 790-1221

MS. MOLLIE ELANA HOLMAN MSW

Social Worker (Clinical)

1020 E OGDEN AVE, SUITE 312
NAPERVILLE, IL 60563

Dupage County (217) 766-6488

DR. ASYA SEGALENE M.D.

Allergy & Immunology (Allergy)

1020 E OGDEN AVE, SUITE 205
NAPERVILLE, IL 60563

Dupage County (630) 852-4050

EDITH PIGNOTTI RN, CDE

Dietitian, Registered

1020 E OGDEN AVE, 304
NAPERVILLE, IL 60563

Dupage County (630) 364-7014

SAJANI JYOTINDRA PARIKH PT

Physical Therapist

1020 E OGDEN AVE
NAPERVILLE, IL 60563

Dupage County (331) 215-9820

DR. AUDREY GEANNOPOULOS M.D.

Internal Medicine

1020 E OGDEN AVE, 115
NAPERVILLE, IL 60563

Dupage County (630) 717-8707

ROBERT MICHAEL ALLAR MD

Ophthalmology (Retina Specialist)

1020 E OGDEN AVE, SUITE 210
NAPERVILLE, IL 60563

Dupage County (630) 717-1311

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 Jennifer Duff's NPI number?

The NPI number for Jennifer Duff is 1649492315. It was assigned to this individual provider in the NPPES registry on May 3, 2007.

Where is Jennifer Duff located?

Jennifer Duff practices at 1020 E Ogden Ave Suite 312, Naperville, IL 60563. The listed phone number is (630) 420-9707.

What is Jennifer Duff's specialty?

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

Is Jennifer Duff enrolled in Medicare?

No. Jennifer Duff has opted out of Medicare through February 8, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Jennifer Duff was last updated on December 10, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.