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DR. CECILIA H YU MD
NPI 1003959248
Pediatrics in O Fallon, MO

Active since February 15, 2007PECOS Enrolled
20 PROGRESS POINT PKWY, STE 220, O FALLON, MO 63368(636) 344-3333(636) 344-3334 Get Directions Write a Review

NPPES record last updated: April 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 9, 2024, Nov 29, 2021, Jun 13, 2019 and 2 more (5 updates tracked since 2015).

About Dr. Cecilia H Yu Md NPPES

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

DR. CECILIA H YU MD (NPI 1003959248) is an individual pediatrics provider in O Fallon, Missouri, licensed in Missouri (110486) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003959248
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. CECILIA H YUCredential: MD
Location Address20 PROGRESS POINT PKWY, STE 220O Fallon, MO 63368-2206
Mailing AddressPo Box 7412027Chicago, IL 60674-2027 · (636) 344-3333 · Fax (636) 344-3334
Phone(636) 344-3333
Fax(636) 344-3334
Sole ProprietorNo
Enumeration DateFebruary 15, 2007
Last NPPES UpdateApril 18, 20255 updates tracked since enumeration
✔ NPI 1003959248 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MO · 110486
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
20 PROGRESS POINT PKWY, O Fallon, MO 63368
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Other Identifiers 1

Medicaid200026275MO

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Cecilia H Yu 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 63368 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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.

DR. JOHN A MYERS MD
Pediatrics
20 PROGRESS POINT PKWY, STE 220
O FALLON, MO 63368
St. Charles County (636) 344-3333
MR. DUNCAN SCOTT MCHARDY FNP
Nurse Practitioner (Family)
20 PROGRESS POINT PKWY, DEPT ORTHOPAEDIC SURGERY, STE 114
O FALLON, MO 63368
St. Charles County (314) 514-3500
WUCA-O'FALLON PEDIATRICS, LLC
Pediatrics
20 PROGRESS POINT PKWY, SUITE 220
O FALLON, MO 63368
St. Charles County (636) 344-3333
DR. NIKOL LEI SMART MD
Obstetrics & Gynecology
20 PROGRESS POINT PKWY, STE 206
O FALLON, MO 63368
St. Charles County (636) 344-1073
GINA VIRGINIA HERMSEN NELSON R.N.,C.P.N.P.
Nurse Practitioner (Pediatrics)
20 PROGRESS POINT PKWY, SUITE 220
O FALLON, MO 63368
St. Charles County (636) 344-3333
DR. ENMANUEL JOSE PEREZ MD
Psychiatry & Neurology (Neurology)
20 PROGRESS POINT PKWY
O FALLON, MO 63368
St. Charles County (636) 916-7060
MILTON OLUDHE OCHIENG' M.D.
Internal Medicine (Gastroenterology)
20 PROGRESS POINT PKWY, STE 108
O FALLON, MO 63368
St. Charles County (636) 344-1073
ANGELA C CLERCX NP-C
Nurse Practitioner (Family)
20 PROGRESS POINT PKWY, STE 108
O FALLON, MO 63368
St. Charles County (636) 344-2400

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 Cecilia Yu's NPI number?

The NPI number for Cecilia Yu is 1003959248. It was assigned to this individual provider in the NPPES registry on February 15, 2007.

Where is Cecilia Yu located?

Cecilia Yu practices at 20 Progress Point Pkwy Ste 220, O Fallon, MO 63368. The listed phone number is (636) 344-3333.

What is Cecilia Yu's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Cecilia Yu enrolled in Medicare?

Yes. Cecilia Yu is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Cecilia Yu was last updated on April 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.