What is George Liang's NPI number?

George Liang's National Provider Identifier (NPI) is 1639284524, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is George Liang's specialty?

George Liang is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).

Where is George Liang located?

George Liang's practice location on file with NPPES is 680 N Lake Shore Dr, Chicago, IL 60611-4546.

What is George Liang's phone number?

The practice phone number listed in the NPPES registry for George Liang is (312) 695-9797.

Is George Liang's NPI active?

Yes — George Liang's NPI (1639284524) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

George Liang, MD

NPI 1639284524 · Rheumatology Physician · Chicago, IL

George Liang, MD is a Rheumatology Physician provider in Chicago, IL (NPI 1639284524).

Provider details

NPI number: 1639284524
Entity type: Individual
Primary specialty: Rheumatology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Rheumatology PhysicianPrimary207RR0500X
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(84/100 index)

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

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
83% 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.

Practice location

680 N Lake Shore Dr

Suite 1000

Chicago, IL 60611-4546

Phone: (312) 695-9797

Street-level locationGet directions

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Mailing address