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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.

DR. WILLIAM W CHUNG MD
NPI 1598754723
Internal Medicine in Milwaukee, WI

Active since October 20, 2005
3201 S 16TH ST, RM 1000, MILWAUKEE, WI 53215(414) 645-4240(414) 665-8240 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William W Chung Md NPPES

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

DR. WILLIAM W CHUNG MD (NPI 1598754723) is an individual internal medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (18854) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1598754723
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WILLIAM W CHUNGCredential: MD
Location Address3201 S 16TH ST, RM 1000Milwaukee, WI 53215-4537
Mailing Address3201 S 16th St, Rm 1000Milwaukee, WI 53215-4537 · (414) 645-4240 · Fax (414) 665-8240
Phone(414) 645-4240
Fax(414) 665-8240
Sole ProprietorNo
Enumeration DateOctober 20, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1598754723 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 18854
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3201 S 16TH ST, Milwaukee, WI 53215
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Other Identifiers 1

Medicaid30921500WI

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.

NEUROLOGY CENTER OF MILWAUKEE, LLC
Psychiatry & Neurology (Neurology)
3201 S 16TH ST, SUITE 1019
MILWAUKEE, WI 53215
Milwaukee County (414) 342-6300
JITENDRA K BARUAH MD SC
Psychiatry & Neurology (Neurology)
3201 S 16TH ST, SUITE 200
MILWAUKEE, WI 53215
Milwaukee County (414) 384-5581
RAKESH WAGHRAY MD
Internal Medicine (Pulmonary Disease)
3201 S 16TH ST, 2015
MILWAUKEE, WI 53215
Milwaukee County (414) 649-3810
MRS. ALLISON MARGARET JUECH PA
Physician Assistant
3201 S 16TH ST, SUITE 100
MILWAUKEE, WI 53215
Milwaukee County (414) 647-5203
ST. FRANCIS GRAPHICS
Internal Medicine (Cardiovascular Disease)
3201 S 16TH ST
MILWAUKEE, WI 53215
Milwaukee County (414) 438-2450
DR. RAJENDRA S RATHOUR MD
Internal Medicine
3201 S 16TH ST, ROOM 1000
MILWAUKEE, WI 53215
Milwaukee County (414) 389-3180
W. I. FRANKOWSKI, MD, SC
Family Medicine
3201 S 16TH ST, SUITE 1010
MILWAUKEE, WI 53215
Milwaukee County (414) 643-0711
PHYSIATRISTS ASSOCIATES, LTD
Physical Medicine & Rehabilitation
3201 S 16TH ST, 800
MILWAUKEE, WI 53215
Milwaukee County (414) 647-9985

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 William Chung's NPI number?

The NPI number for William Chung is 1598754723. It was assigned to this individual provider in the NPPES registry on October 20, 2005.

Where is William Chung located?

William Chung practices at 3201 S 16th St Rm 1000, Milwaukee, WI 53215. The listed phone number is (414) 645-4240.

What is William Chung's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for William Chung was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 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.