WILLIAM R YU (MD) – Internal Medicine Physician, NPI 1003903931

Internal Medicine Physician

WILLIAM R YU (MD) is a healthcare provider. based in Springfield, Illinois. specializing in Internal Medicine Physician. They hold the professional credentials MD. They hold a License No. 36061621 (IL). The NPI Number for WILLIAM R YU (MD) is 1003903931

Main info

Male

47 Years Of Experience

Accepts Medicare Assignment

Name

WILLIAM R YU (MD)

NPI

1003903931

Phone

(217) 789-1403

Address

1836 SOUTH MACARTHUR BLVD

Enumeration Date

10 October 2006

Last Update Date

30 December 2021

Doctor Profile

Medical School Name

LOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE

Secondary Phone

2174232889

Graduation Year

1979 (47 years ago)

PAC ID

0941304919

Group Practice PAC ID

5092857821

Professional Enrollment ID

I20081106000689

Contacts

Secure Messaging

wyu33425@ewd.direct.hshs.org

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience62

Completeness85

Years active:19State licenses:1Other namesUpdated within 12 months

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Provider Addresses for WILLIAM R YU (MD)

1836, South MacArthur Boulevard, Springfield, Sangamon County, Illinois, 62704, United States
SPRINGFIELD, IL 62704
Phone: (217) 789-1403
Fax: (217) 789-1825
Type: Location
2901 OLD JACKSONVILLE RD
SPRINGFIELD, IL 627047437
Phone: (217) 698-9722
Fax: (217) 698-8012
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 62704)

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Provider's Procedures

WILLIAM R YU (MD) performs procedures in Internal Medicine Physician. See the list of HCPCS codes below.

Specialty	Practice State	HCPCS Code	Description	Service Count	Beneficiary Count
INTERNAL MEDICINE	IL	85610	Blood test, clotting time	80	14
INTERNAL MEDICINE	IL	90670	Pneumococcal vaccine for injection into muscle	23	23

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 5092857821View full group profile

Name	Specialty	State
WINSTON J TOWNSEND (MD)	Internal Medicine	IL
DR. PRAVEEN KUMAR SAMPATH (MD)	G A S T R O E N T E R O L O G Y	TX
MARY CRISLER	-	IL
PROF. SIDNEY P ROHRSCHEIB (M.D.)	General Surgery	IL
DEBORAH L PULLIAM (APRN, CNP)	-	IL
RENATO BACOL RIVERA (M.D.)	-	IL
JULIE BRASEL (C.N.M.)	Certified Nurse Midwife (Cnm)	IL
DR. SCOTT ERIC URCH (M.D.)	-	IL
NITIN KUMAR (MD)	Gastroenterology, Internal Medicine	IL
BRENDA L MICHEL (FNP-BC)	-	IL

Reviews

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Frequently asked questions

What is the 10-digit NPI for WILLIAM R YU (MD)?

WILLIAM R YU (MD) — NPI 1003903931 — is the standard way to identify this listing.

Does the file indicate WILLIAM R YU (MD) is practicing under active NPI?

Directory data currently reports WILLIAM R YU (MD) as active.

What is WILLIAM R YU (MD)'s primary classification?

Internal Medicine Physician is the headline specialty for WILLIAM R YU (MD) here. Clinical services aligned with this taxonomy classification.

What area does WILLIAM R YU (MD) serve?

WILLIAM R YU (MD)'s listing highlights Springfield, Illinois; more addresses can appear in NPPES.

How many locations tie to this NPI?

3 practice locations appear in the available data.

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