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VANESSA TIEU
NPI 1245486430
Internal Medicine in Chicago, IL

Active since August 07, 2008PECOS EnrolledAccepts Medicare Assignment
1653 W CONGRESS PKWY, CHICAGO, IL 60612(312) 942-8375 Get Directions Write a Review

NPPES record last updated: December 15, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Vanessa Tieu NPPES

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

VANESSA TIEU (NPI 1245486430) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (125051830) and active in the NPI registry since August 2008. She is enrolled in Medicare PECOS and is a graduate of Northeastern Ohio University College Of Medicine (2006).

NPPES Registry Identity

NPI1245486430
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameVANESSA TIEU
Location Address1653 W CONGRESS PKWYChicago, IL 60612-3833
Mailing Address950 W Monroe St, #707Chicago, IL 60607-2788
Phone(312) 942-8375
Sole ProprietorNo
Medical School CMSNortheastern Ohio University College Of MedicineGraduated 2006
Enumeration DateAugust 7, 2008
Last NPPES UpdateDecember 15, 2021
✔ NPI 1245486430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 125051830
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.
1653 W CONGRESS PKWY, Chicago, IL 60612
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Vanessa Tieu is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2567657190
PECOS Enrollment IDI20101109001042
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.

Medicare Billing Reassignment

Medicare enrollment records show Vanessa Tieu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
1,794 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
32 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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 20

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

KAITLIN ROBLING MD
Radiology (Diagnostic Radiology)
1653 W CONGRESS PKWY
CHICAGO, IL 60612
Cook County (312) 942-5000
LAUREN ELIZABETH ARSENAULT MD
Radiology (Diagnostic Radiology)
1653 W CONGRESS PKWY
CHICAGO, IL 60612
Cook County (312) 942-5781
ALEX MICHAEL JAMES
Student in an Organized Health Care Education/Training Program
1653 W CONGRESS PKWY
CHICAGO, IL 60612
Cook County (888) 352-7874
WERNER MEIER M.D.
Pediatrics (Neonatal-Perinatal Medicine)
1653 W CONGRESS PKWY
CHICAGO, IL 60612
Cook County (312) 942-7154
UNIVERSITY PATHOLOGISTS P C
Pathology (Anatomic Pathology & Clinical Pathology)
1653 W CONGRESS PKWY
CHICAGO, IL 60612
Cook County (312) 942-5700
RUSH UNIVERSITY MEDICAL CENTER
Clinical Medical Laboratory
1653 W CONGRESS PKWY, ROOM 1188-JELKE
CHICAGO, IL 60612
Cook County (312) 942-2054
DR. PATOULA PANAGOS-BILLIRIS MD
Pediatrics (Neonatal-Perinatal Medicine)
1653 W CONGRESS PKWY, 3 PAVILLION
CHICAGO, IL 60612
Cook County (312) 942-3306
KAREN HARVEY
Nurse Practitioner (Psychiatric/Mental Health)
1653 W CONGRESS PKWY
CHICAGO, IL 60612
Cook County (312) 947-0100

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 Vanessa Tieu's NPI number?

The NPI number for Vanessa Tieu is 1245486430. It was assigned to this individual provider in the NPPES registry on August 7, 2008.

Where is Vanessa Tieu located?

Vanessa Tieu practices at 1653 W Congress Pkwy, Chicago, IL 60612. The listed phone number is (312) 942-8375.

What is Vanessa Tieu's specialty?

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

Is Vanessa Tieu enrolled in Medicare?

Yes. Vanessa Tieu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Vanessa Tieu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Vanessa Tieu reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Vanessa Tieu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Vanessa Tieu was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.