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DR. STACEY MICHELLE LOWEN M.D.
NPI 1861691479
Pediatrics in Westlake Village, CA

Active since July 13, 2007PECOS Enrolled
141 TRIUNFO CANYON RD STE 120, WESTLAKE VILLAGE, CA 91361(805) 557-7187 Get Directions Write a Review

NPPES record last updated: April 2, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 2, 2026, Jul 5, 2019 (2 updates tracked since 2019).

About Dr. Stacey Michelle Lowen M.d. NPPES

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

DR. STACEY MICHELLE LOWEN M.D. (NPI 1861691479) is an individual pediatrics provider in Westlake Village, California, licensed in California (A106826) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in Ventura.

NPPES Registry Identity

NPI1861691479
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. STACEY MICHELLE LOWENCredential: M.D.
Location Address141 TRIUNFO CANYON RD STE 120Westlake Village, CA 91361-2525
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Phone(805) 557-7187
Sole ProprietorYes
Enumeration DateJuly 13, 2007
Last NPPES UpdateApril 2, 20262 updates tracked since enumeration
NPPES CertifiedApril 2, 2026
✔ NPI 1861691479 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A106826
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
141 TRIUNFO CANYON RD STE 120, Westlake Village, CA 91361
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Secondary Practice Location 1

Location 12601 E Main St Ste 200Ventura, CA 93003 · Phone (805) 643-7500 · Fax (805) 643-7510

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stacey Michelle Lowen M.d. 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 Reassignment

Medicare enrollment records show Stacey Lowen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Regents Of The University Of California
23 mi
Internal Medicine
200 MEDICAL PLAZA, SUITE 365,530,420,250,120,214
Los Angeles, CA 90095
  • Reassigned Medicare billing, California enrollment
  • 1,766 clinicians in this Medicare group
NPI 1235107566 (310) 794-1276

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 91361 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
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
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.

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 Stacey Lowen's NPI number?

The NPI number for Stacey Lowen is 1861691479. It was assigned to this individual provider in the NPPES registry on July 13, 2007.

Where is Stacey Lowen located?

Stacey Lowen practices at 141 Triunfo Canyon Rd Ste 120, Westlake Village, CA 91361. The listed phone number is (805) 557-7187.

What is Stacey Lowen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Stacey Lowen enrolled in Medicare?

Yes. Stacey Lowen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stacey Lowen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stacey Lowen reassigns Medicare benefits to The Regents Of The University Of California (Los Angeles, CA). 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 Stacey Lowen'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 Stacey Lowen was last updated on April 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.