What is Dennis Liu's NPI number?

Dennis Liu's National Provider Identifier (NPI) is 1124076724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Dennis Liu's specialty?

Dennis Liu is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).

Where is Dennis Liu located?

Dennis Liu's practice location on file with NPPES is 225 E Chicago Ave, Chicago, IL 60611-2991.

What is Dennis Liu's phone number?

The practice phone number listed in the NPPES registry for Dennis Liu is (312) 227-6340.

Does Dennis Liu accept Medicare?

Dennis Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Dennis Liu's NPI active?

Yes — Dennis Liu's NPI (1124076724) is active in the NPPES registry as of the last update on 2013-09-02.

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Dennis Liu, M.D.

NPI 1124076724 · Urology Physician · Chicago, IL

Dennis Liu, M.D. is a Urology Physician provider in Chicago, IL (NPI 1124076724).

Provider details

NPI number: 1124076724
Entity type: Individual
Primary specialty: Urology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 036111648 (IL)

Practice location

225 E Chicago Ave

Box 24

Chicago, IL 60611-2991

Phone: (312) 227-6340

Fax: (312) 227-9412

Street-level locationGet directions

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Mailing address

225 E Chicago Ave

Chicago, IL 60611-2991

Specialties & taxonomies

Urology PhysicianPrimary208800000XLicense 036111648 (IL)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2006-05-05
Last updated: 2013-09-02

Frequently asked questions

What is Dennis Liu's NPI number?: Dennis Liu's National Provider Identifier (NPI) is 1124076724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Dennis Liu's specialty?: Dennis Liu is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
Where is Dennis Liu located?: Dennis Liu's practice location on file with NPPES is 225 E Chicago Ave, Chicago, IL 60611-2991.
What is Dennis Liu's phone number?: The practice phone number listed in the NPPES registry for Dennis Liu is (312) 227-6340.
Does Dennis Liu accept Medicare?: Dennis Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Dennis Liu's NPI active?: Yes — Dennis Liu's NPI (1124076724) is active in the NPPES registry as of the last update on 2013-09-02.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions