KRISTEN NICOLE LEFSTEIN
NPI 1689176109
Nurse Practitioner - Primary Care in Orange, CA

Active since February 28, 2018PECOS EnrolledAccepts Medicare Assignment
1120 W LA VETA AVE STE 300, ORANGE, CA 92868(714) 598-1745 Get Directions Write a Review

NPPES record last updated: January 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 13, 2026, Feb 28, 2018 (2 updates tracked since 2018).

About Kristen Nicole Lefstein NPPES

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

KRISTEN NICOLE LEFSTEIN (NPI 1689176109) is an individual primary care provider in Orange, California, licensed in California (95007538) and active in the NPI registry since February 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Orange, and is a graduate of University Of California, Irvine, California College Of Medicine (2017).

NPPES Registry Identity

NPI1689176109
Entity TypeIndividualFemale
Primary Taxonomy363LP2300X
Provider Legal NameKRISTEN NICOLE LEFSTEIN
Location Address1120 W LA VETA AVE STE 300Orange, CA 92868-4246
Mailing Address824 Cortez StCosta Mesa, CA 92626-5823 · (949) 933-9825
Sole ProprietorNo
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2017
Enumeration DateFebruary 28, 2018
Last NPPES UpdateJanuary 13, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 13, 2026
NPI 1689176109 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 · 95007538
1120 W LA VETA AVE STE 300, Orange, CA 92868

Secondary Practice Location 1

Location 1845 W La Veta Ave Ste 105Orange, CA 92868-3930 · Phone (714) 289-6565 · Fax (714) 289-6571

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Kristen Nicole Lefstein 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 ID3577040286
PECOS Enrollment IDI20260123002848
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 92868 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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 18

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

Orthopaedic Surgery (Hand Surgery)
1120 W LA VETA AVE STE 300
ORANGE, CA 92868
Physical Medicine & Rehabilitation (Neuromuscular Medicine)
1120 W LA VETA AVE STE 300
ORANGE, CA 92868
Orthopaedic Surgery (Orthopaedic Trauma)
1120 W LA VETA AVE STE 300
ORANGE, CA 92868
Pain Medicine (Interventional Pain Medicine)
1120 W LA VETA AVE STE 300
ORANGE, CA 92868
Physician Assistant
1120 W LA VETA AVE STE 300
ORANGE, CA 92868
Orthopaedic Surgery
1120 W LA VETA AVE STE 300
ORANGE, CA 92868
Physician Assistant (Medical)
1120 W LA VETA AVE STE 300
ORANGE, CA 92868
Physician Assistant
1120 W LA VETA AVE STE 300
ORANGE, CA 92868

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 Kristen Lefstein's NPI number?

The NPI number for Kristen Lefstein is 1689176109. It was assigned to this individual provider in the NPPES registry on February 28, 2018.

Where is Kristen Lefstein located?

Kristen Lefstein practices at 1120 W La Veta Ave Ste 300, Orange, CA 92868. The listed phone number is (714) 598-1745.

What is Kristen Lefstein's specialty?

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

Is Kristen Lefstein enrolled in Medicare?

Yes. Kristen Lefstein 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.

When was this NPI record last updated?

The NPPES record for Kristen Lefstein was last updated on January 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.