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ELLEN WU
NPI 1104309459
Dermatology in Chicago, IL

Active since September 12, 2018PECOS Enrolled
240 E HURON ST STE 1-200, CHICAGO, IL 60611(312) 503-7975 Get Directions Write a Review

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

Record update history: Jul 27, 2026, Sep 12, 2018 (2 updates tracked since 2018).

About Ellen Wu NPPES

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

ELLEN WU (NPI 1104309459) is an individual dermatology provider in Chicago, Illinois, licensed in New York (344756) and active in the NPI registry since September 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1104309459
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameELLEN WU
Location Address240 E HURON ST STE 1-200Chicago, IL 60611-2909
Mailing Address240 E Huron St Ste 1-200Chicago, IL 60611-2909
Phone(312) 503-7975
Sole ProprietorYes
Medical School CMSOtherGraduated 2022
Enumeration DateSeptember 12, 2018
Last NPPES UpdateJuly 27, 20262 updates tracked since enumeration
NPPES CertifiedJuly 27, 2026
✔ NPI 1104309459 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in NY · 344756
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
240 E HURON ST STE 1-200, Chicago, IL 60611
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ellen Wu is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7517324452
PECOS Enrollment IDI20260901001456
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 Ellen Wu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

New York University
1,141 mi
Cardiovascular Disease
3301 QUANTUM BLVD
Boynton Beach, FL 33426
  • Reassigned Medicare billing, New York enrollment
  • 7,712 clinicians in this Medicare group
NPI 1285826438 (877) 648-2964

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 60611 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
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 20

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

CLAYTON LYONS
Student in an Organized Health Care Education/Training Program
240 E HURON ST STE 1-200
CHICAGO, IL 60611
Cook County (412) 926-8985
BRIAN LEE
Student in an Organized Health Care Education/Training Program
240 E HURON ST STE 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
KATHERINE FIONA SIMPSON
Student in an Organized Health Care Education/Training Program
240 E HURON ST STE 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
ANYA DHAR
Student in an Organized Health Care Education/Training Program
240 E HURON ST STE 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
MR. CADE FREDERICK BENNETT
Student in an Organized Health Care Education/Training Program
240 E HURON ST STE 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
NIRAJ VINAYAK LAWANDE
Student in an Organized Health Care Education/Training Program
240 E HURON ST STE 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
JUSTIN WANG
Student in an Organized Health Care Education/Training Program
240 E HURON ST STE 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975
CALVIN THOMAS HAWE
Student in an Organized Health Care Education/Training Program
240 E HURON ST STE 1-200
CHICAGO, IL 60611
Cook County (312) 503-7975

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 Ellen Wu's NPI number?

The NPI number for Ellen Wu is 1104309459. It was assigned to this individual provider in the NPPES registry on September 12, 2018.

Where is Ellen Wu located?

Ellen Wu practices at 240 E Huron St Ste 1-200, Chicago, IL 60611. The listed phone number is (312) 503-7975.

What is Ellen Wu's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Ellen Wu enrolled in Medicare?

Yes. Ellen Wu is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ellen Wu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Wu reassigns Medicare benefits to New York University (Boynton Beach, FL). 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 Ellen Wu'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 Ellen Wu was last updated on July 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.