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DR. CHRISTINE C CORTADILLO D.O.
NPI 1417186099
Obstetrics & Gynecology in O Fallon, MO

Active since July 05, 2009PECOS EnrolledAccepts Medicare Assignment
1101 HIGHWAY K, O FALLON, MO 63366(636) 379-6363(636) 379-1297 Get Directions Write a Review

NPPES record last updated: September 18, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Christine C Cortadillo D.o. NPPES

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

DR. CHRISTINE C CORTADILLO D.O. (NPI 1417186099) is an individual obstetrics & gynecology provider in O Fallon, Missouri, licensed in Missouri (2013010687) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1417186099
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. CHRISTINE C CORTADILLOCredential: D.O.
Location Address1101 HIGHWAY KO Fallon, MO 63366-8431
Mailing Address1551 Wall St, Suite 310Saint Charles, MO 63303-3539 · (636) 669-2268 · Fax (314) 209-8127
Phone(636) 379-6363
Fax(636) 379-1297
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateJuly 5, 2009
Last NPPES UpdateSeptember 18, 2013
✔ NPI 1417186099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in MO · 2013010687
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1101 HIGHWAY K, O Fallon, MO 63366
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Other Names 1

Former Name (1)Miss Christine C Niemann D.o.

Other Identifiers 1

Other2013010687MO · License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

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

Dr. Christine C Cortadillo D.o. 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 ID5395979330
PECOS Enrollment IDI20131007001553
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 Christine Cortadillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ssm Health Care St. Louis
4.1 mi
Emergency Medical Services
100 MEDICAL PLZ
Lake St Louis, MO 63367
  • Reassigned Medicare billing, Missouri enrollment
  • 741 clinicians in this Medicare group
NPI 1538113097 (636) 625-5200

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63366 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
Most-billed visit code 99213
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.

RILEY B BUSCH PA-C
Physician Assistant
1101 HIGHWAY K
O FALLON, MO 63366
St. Charles County (636) 379-6363
DR. CHANDRA K WIEWEL M.D.
Family Medicine
1101 HIGHWAY K
O FALLON, MO 63366
St. Charles County (636) 379-4590
DR. BRIANNA NICOLE NORMAN DPT
Physical Therapist
1101 HIGHWAY K
O FALLON, MO 63366
St. Charles County (636) 379-6380
ELIZABETH VOLLMAR FNP-C
Nurse Practitioner
1101 HIGHWAY K
O FALLON, MO 63366
St. Charles County (636) 379-6363
JAMIE L. PUCKETT M.D.
Obstetrics & Gynecology
1101 HIGHWAY K
O FALLON, MO 63366
St. Charles County (636) 379-6363
DR. LEONARD M HOFFMANN M.D.
Family Medicine
1101 HIGHWAY K
O FALLON, MO 63366
St. Charles County (636) 379-4590
ANGELA M PETER NP
Nurse Practitioner (Family)
1101 HIGHWAY K
O FALLON, MO 63366
St. Charles County (636) 379-4590
MATTHEW DAVID SCHNEIDER DO
Family Medicine
1101 HIGHWAY K
O FALLON, MO 63366
St. Charles County (636) 379-6363

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 Christine Cortadillo's NPI number?

The NPI number for Christine Cortadillo is 1417186099. It was assigned to this individual provider in the NPPES registry on July 5, 2009. The provider is also known as Miss Christine C Niemann D.O..

Where is Christine Cortadillo located?

Christine Cortadillo practices at 1101 Highway K, O Fallon, MO 63366. The listed phone number is (636) 379-6363.

What is Christine Cortadillo's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Christine Cortadillo enrolled in Medicare?

Yes. Christine Cortadillo 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 Christine Cortadillo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christine Cortadillo reassigns Medicare benefits to Ssm Health Care St. Louis (Lake St Louis, MO). 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 Christine Cortadillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Christine Cortadillo accept?

Health plans from Anthem Blue Cross and Blue Shield list Christine Cortadillo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Christine Cortadillo was last updated on September 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.