Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. KAREN YVONNE VILLARREAL FNP
NPI 1518341874
Nurse Practitioner - Primary Care in Visalia, CA

Active since July 16, 2015PECOS Enrolled
2324 E CHESTNUT CT, VISALIA, CA 93292(559) 289-4124 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mrs. Karen Yvonne Villarreal Fnp NPPES

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

MRS. KAREN YVONNE VILLARREAL FNP (NPI 1518341874) is an individual primary care provider in Visalia, California, licensed in California (95002708) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS and maintains a secondary practice location in Lemoore.

NPPES Registry Identity

NPI1518341874
Entity TypeIndividualFemale
Primary Taxonomy363LP2300X
Provider Legal NameMRS. KAREN YVONNE VILLARREALCredential: FNP
Location Address2324 E CHESTNUT CTVisalia, CA 93292-1800
Mailing Address2324 E Chestnut CtVisalia, CA 93292-1800 · (559) 289-4124
Sole ProprietorYes
Enumeration DateJuly 16, 2015
Last NPPES UpdateOctober 7, 2026
NPPES CertifiedOctober 7, 2026
✔ NPI 1518341874 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Primary CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP2300X
License✔ Licensed in CA · 95002708
2324 E CHESTNUT CT, Visalia, CA 93292

Secondary Practice Location 1

Location 1209 C StLemoore, CA 93245-2930 · Phone (559) 924-7005 · Fax (559) 925-8500

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Karen Yvonne Villarreal 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 Karen Villarreal reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Medicine
2431 W CALDWELL AVE
Visalia, CA 93277
  • Reassigned Medicare billing, California enrollment
  • 4 clinicians in this Medicare group
General Practice
40657 ROAD 128
Cutler, CA 93615
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group

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 93292 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
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620
DME-Drugs Administered Through DME · category DG006N
2 suppliers21 claims2,130 services$0.10 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
3 suppliers38 claims38 services$24.66 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

Nurse Practitioner (Family)
2324 E CHESTNUT CT
VISALIA, CA 93292

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 Karen Villarreal's NPI number?

The NPI number for Karen Villarreal is 1518341874. It was assigned to this individual provider in the NPPES registry on July 16, 2015.

Where is Karen Villarreal located?

Karen Villarreal practices at 2324 E Chestnut Ct, Visalia, CA 93292. The listed phone number is (559) 289-4124.

What is Karen Villarreal's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.

Is Karen Villarreal enrolled in Medicare?

Yes. Karen Villarreal is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Karen Villarreal's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Villarreal reassigns Medicare benefits to 2 organizations: Visalia Walk In Medical Clinic Inc (Visalia, CA) and Cherry Clinic (Cutler, CA). 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 Karen Villarreal'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 Karen Villarreal was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days 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.