MRS. RACHAEL WHITNEY VILLARREAL APN
NPI 1710347893
Nurse Practitioner in Fairview Heights, IL

Q: What is Rachael Villarreal's NPI number?

The NPI number for Rachael Villarreal is 1710347893. It was assigned to this individual provider in the NPPES registry on March 2, 2016. The provider is also known as Ms. Rachael Whitney Marks Apn.

Q: What is Rachael Villarreal's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Active since March 02, 2016PECOS Enrolled

6505 N ILLINOIS ST, FAIRVIEW HEIGHTS, IL 62208(314) 687-2734 Get Directions Write a Review

NPPES record last updated: October 30, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 30, 2020, Nov 2, 2018, Sep 13, 2017 and 1 more (4 updates tracked since 2016).

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About Mrs. Rachael Whitney Villarreal Apn NPPES

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

MRS. RACHAEL WHITNEY VILLARREAL APN (NPI 1710347893) is an individual nurse practitioner in Fairview Heights, Illinois, licensed in Missouri (2016005846) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Fairview Heights.

NPPES Registry Identity

NPI1710347893

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMRS. RACHAEL WHITNEY VILLARREALCredential: APN

Location Address6505 N ILLINOIS STFairview Heights, IL 62208

Mailing Address1475 Kisker RdSaint Charles, MO 63304-8781 · (366) 498-7406

Phone(314) 687-2734

Sole ProprietorNo

Enumeration DateMarch 2, 2016

Last NPPES UpdateOctober 30, 20204 updates tracked since enumeration

NPPES CertifiedOctober 30, 2020

✔ NPI 1710347893 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

Licenses✔ Licensed in MO · 2016005846✔ Licensed in IL · 209014435

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 209.014435 (IL), 2016005846 (MO)

6505 N ILLINOIS ST, Fairview Heights, IL 62208

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Other Names 1

Former Name (1)Ms. Rachael Whitney Marks Apn

Secondary Practice Location 1

Location 16505 N Illinois StFairview Heights, IL 62208 · Phone (314) 687-2734

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Rachael Whitney Villarreal Apn 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

Medicare enrollment records show Rachael Villarreal reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ssm Cardinal Glennon Childrens Hospital

5.1 mi

Pediatrics

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Ssm Cardinal Glennon Children's Hospital
76 clinicians in this Medicare group

NPI 1174577670 (618) 234-2120

Ssm Health Care St. Louis

18 mi

Emergency Medicine

6420 CLAYTON RD
Saint Louis, MO 63117

Reassigned Medicare billing, Missouri enrollment
741 clinicians in this Medicare group

NPI 1366400855 (314) 768-8000

Ssm Medical Group, Inc.

27 mi

Multi-Specialty

1011 BOWLES AVE, SUITE 300
Fenton, MO 63026

Reassigned Medicare billing, Missouri enrollment
697 clinicians in this Medicare group

NPI 1700966207 (636) 496-5000

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 62208 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

$88.44 typical visit price

range $56.28 – $173.35

Typical copayment $22.11 (range $14.07 – $43.33)

Most-billed visit code 99203

Established Patient

$99.71 typical visit price

range $17.51 – $139.99

Typical copayment $24.92 (range $4.37 – $34.99)

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 15

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

EMILY LAUREN MAPES

Pharmacist