1. Home
  2. Directory
  3. Missouri
  4. Saint Louis
  5. Nurse Practitioner
  6. NPI Profile

MS. CHRISTINE C MACHICAO FNP
NPI 1871806786
Nurse Practitioner - Family in Saint Louis, MO

Active since July 20, 2010PECOS Enrolled
8888 LADUE RD, STE 100, SAINT LOUIS, MO 63124(314) 862-4050(314) 862-1141 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 25, 2024, Apr 10, 2024, Nov 15, 2021 and 1 more (4 updates tracked since 2021).

About Ms. Christine C Machicao Fnp NPPES

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

MS. CHRISTINE C MACHICAO FNP (NPI 1871806786) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2001005535) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871806786
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. CHRISTINE C MACHICAOCredential: FNP
Location Address8888 LADUE RD, STE 100Saint Louis, MO 63124-2326
Mailing AddressPo Box 7412125Chicago, IL 60674-2125 · (314) 862-4050 · Fax (314) 862-1141
Phone(314) 862-4050
Fax(314) 862-1141
Sole ProprietorNo
Enumeration DateJuly 20, 2010
Last NPPES UpdateApril 17, 20254 updates tracked since enumeration
✔ NPI 1871806786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MO · 2001005535
8888 LADUE RD, Saint Louis, MO 63124
Open in Google Maps ↗

Other Identifiers 1

Medicaid420019031MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Christine C Machicao Fnp 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Christine Machicao reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Washington University
Same address
Multi-Specialty
8888 LADUE RD STE 100
Saint Louis, MO 63124
  • Reassigned Medicare billing, Missouri enrollment
  • 12 clinicians in this Medicare group
NPI 1346847233 (314) 862-4050
Mercy Clinic East Communities
5.1 mi
Family Medicine
615 S NEW BALLAS RD, ADMINISTRATION BUILDING, 5TH FLOOR
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 744 clinicians in this Medicare group
NPI 1043574940 (314) 251-6000

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 63124 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. KIMBERLY S SIRL PH.D.
Psychologist (Clinical)
8888 LADUE RD, #120
SAINT LOUIS, MO 63124
St. Louis County (314) 454-6069
WOLKEN DENTAL D D S P C
Durable Medical Equipment & Medical Supplies (Customized Equipment)
8888 LADUE RD
SAINT LOUIS, MO 63124
St. Louis County (314) 727-6676
WOLKEN DENTAL
Dentist (General Practice)
8888 LADUE RD, STE 200
ST. LOUIS, MO 63124
St. Louis County (314) 727-6676
DR. ELIZABETH L ATKINSON MD
Pediatrics
8888 LADUE RD, STE 100
SAINT LOUIS, MO 63124
St. Louis County (314) 862-4050
DR. CHRISTOPHER M WOLKEN DDS
Dentist
8888 LADUE RD, STE 200
SAINT LOUIS, MO 63124
St. Louis County (314) 727-6676
DR. ARCHNA GOEL CALFEE MD
Pediatrics
8888 LADUE RD, STE 100
SAINT LOUIS, MO 63124
St. Louis County (314) 862-4050
DR. JENNIFER ANNE HORST MD
Pediatrics
8888 LADUE RD, STE 100
SAINT LOUIS, MO 63124
St. Louis County (314) 862-4050
DR. SUSAN C SYLVIA PH.D.
Psychologist (Clinical)
8888 LADUE RD, #120
SAINT LOUIS, MO 63124
St. Louis County (314) 454-6069

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 Machicao's NPI number?

The NPI number for Christine Machicao is 1871806786. It was assigned to this individual provider in the NPPES registry on July 20, 2010.

Where is Christine Machicao located?

Christine Machicao practices at 8888 Ladue Rd Ste 100, Saint Louis, MO 63124. The listed phone number is (314) 862-4050.

What is Christine Machicao's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Christine Machicao enrolled in Medicare?

Yes. Christine Machicao is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Christine Machicao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christine Machicao reassigns Medicare benefits to 2 organizations: Washington University (Saint Louis, MO) and Mercy Clinic East Communities (Saint Louis, MO). Each 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 Machicao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Christine Machicao accept?

Health plans from UnitedHealthcare list Christine Machicao 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 Machicao was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.