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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CATHERINE WANG MD
NPI 1891321741
Internal Medicine - Gastroenterology in Chicago, IL

Active since March 22, 2020PECOS Enrolled
5140 N CALIFORNIA AVE STE 545, CHICAGO, IL 60625(773) 907-3038 Get Directions Write a Review

NPPES record last updated: June 16, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 23, 2023, Mar 22, 2020 (2 updates tracked since 2020).

About Catherine Wang Md NPPES

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

CATHERINE WANG MD (NPI 1891321741) is an individual gastroenterology provider in Chicago, Illinois, licensed in Illinois (036164017) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1891321741
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameCATHERINE WANGCredential: MD
Location Address5140 N CALIFORNIA AVE STE 545Chicago, IL 60625-3660
Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 570-2040
Phone(773) 907-3038
Sole ProprietorYes
Enumeration DateMarch 22, 2020
Last NPPES UpdateJune 16, 20262 updates tracked since enumeration
NPPES CertifiedJune 16, 2026
✔ NPI 1891321741 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in IL · 036164017
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License 036164017 (IL)
5140 N CALIFORNIA AVE STE 545, Chicago, IL 60625
Open in Google Maps ↗

Secondary Practice Location 1

Location 13122 N Ashland AveChicago, IL 60657-3014 · Phone (847) 657-1900

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Catherine Wang Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60625 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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

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

MARIA OLGA CARDENAS MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
5140 N CALIFORNIA AVE STE 545
CHICAGO, IL 60625
Cook County (773) 769-9200

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 Catherine Wang's NPI number?

The NPI number for Catherine Wang is 1891321741. It was assigned to this individual provider in the NPPES registry on March 22, 2020.

Where is Catherine Wang located?

Catherine Wang practices at 5140 N California Ave Ste 545, Chicago, IL 60625. The listed phone number is (773) 907-3038.

What is Catherine Wang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Catherine Wang enrolled in Medicare?

Yes. Catherine Wang is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Catherine Wang was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 days 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.