JOYCE K LO M.D.
NPI 1780871426
Pediatrics in Naperville, IL

Q: What is Joyce Lo's NPI number?

The NPI number for Joyce Lo is 1780871426. It was assigned to this individual provider in the NPPES registry on September 26, 2007. The provider is also known as Joyce K. Kuo M.D..

Q: What is Joyce Lo's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Q: When was this NPI record last updated?

The NPPES record for Joyce Lo was last updated on March 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since September 26, 2007PECOS Enrolled

801 S WASHINGTON ST, NAPERVILLE, IL 60540(630) 527-3288(630) 527-7632 Get Directions Write a Review

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

On this page

About Joyce K Lo M.d. NPPES

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

JOYCE K LO M.D. (NPI 1780871426) is an individual pediatrics provider in Naperville, Illinois, licensed in Illinois (036117186) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780871426

Entity TypeIndividualFemale

Primary Taxonomy208000000X

Provider Legal NameJOYCE K LOCredential: M.D.

Location Address801 S WASHINGTON STNaperville, IL 60540-7430

Mailing Address2650 Ridge Ave # 1223Evanston, IL 60201-1700 · (847) 982-3175 · Fax (847) 982-3394

Phone(630) 527-3288

Fax(630) 527-7632

Sole ProprietorNo

Enumeration DateSeptember 26, 2007

Last NPPES UpdateMarch 27, 2026

NPPES CertifiedMarch 27, 2026

✔ NPI 1780871426 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in IL · 036117186

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

801 S WASHINGTON ST, Naperville, IL 60540

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Other Names 1

Former Name (1)Joyce K. Kuo M.d.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joyce K Lo M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

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

Dupage Medical Group Ltd

8.6 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

Endeavor Health Medical Group

32 mi

Allergy & Immunology

1000 CENTRAL ST
Evanston, IL 60201

Reassigned Medicare billing, Illinois enrollment
4,841 clinicians in this Medicare group

NPI 1497701882 (847) 570-5235

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

$93.02 typical visit price

range $59.81 – $181.38

Typical copayment $23.25 (range $14.95 – $45.34)

Most-billed visit code 99203

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. HAFEZ M. SAMI M.D.

Pain Medicine (Interventional Pain Medicine)

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 348-3300

MICHAEL J. HARTMANN MD

Emergency Medicine

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3000

SEEMA ISHAQ JEELANI D.O.

Emergency Medicine

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3000

CORTNEY COLE MD

Family Medicine (Hospice and Palliative Medicine)

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3000

EDWARD HOSPITAL

General Acute Care Hospital

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 655-0450

DR. HODA A. EL- ASMAR MD

Internal Medicine (Infectious Disease)

801 S WASHINGTON ST, EDWARD HOSPITAL, ADMINISTRATION, VPMA OFFICE
NAPERVILLE, IL 60540

Dupage County (630) 527-5647

AMAAR MASOOD MALIK DO

Radiology (Diagnostic Radiology)

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3200

DR. SANGITA RANGALA M.D.

Emergency Medicine

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3288

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 Joyce Lo's NPI number?

The NPI number for Joyce Lo is 1780871426. It was assigned to this individual provider in the NPPES registry on September 26, 2007. The provider is also known as Joyce K. Kuo M.D..

Where is Joyce Lo located?

Joyce Lo practices at 801 S Washington St, Naperville, IL 60540. The listed phone number is (630) 527-3288.

What is Joyce Lo's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Joyce Lo enrolled in Medicare?

Yes. Joyce Lo is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Joyce Lo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joyce Lo reassigns Medicare benefits to 2 organizations: Dupage Medical Group Ltd (Downers Grove, IL) and Endeavor Health Medical Group (Evanston, IL). 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 Joyce Lo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Joyce Lo accept?

Health plans from Oscar Health list Joyce Lo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Joyce Lo was last updated on March 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.