GAIL RENEE DEWYN WHNP
NPI 1386186153
Nurse Practitioner - Women's Health in Torrance, CA

Active since November 10, 2016PECOS EnrolledAccepts Medicare Assignment
4201 TORRANCE BLVD STE 600, TORRANCE, CA 90503(310) 316-4373(310) 316-1291 Get Directions Write a Review

NPPES record last updated: January 2, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 2, 2025, Jul 25, 2022, Nov 10, 2016 (3 updates tracked since 2016).

About Gail Renee Dewyn Whnp NPPES

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

GAIL RENEE DEWYN WHNP (NPI 1386186153) is an individual women's health provider in Torrance, California, licensed in California (95004971) and active in the NPI registry since November 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1386186153
Entity TypeIndividualFemale
Primary Taxonomy363LW0102X
Provider Legal NameGAIL RENEE DEWYNCredential: WHNP
Location Address4201 TORRANCE BLVD STE 600Torrance, CA 90503-4523
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Fax(310) 316-1291
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateNovember 10, 2016
Last NPPES UpdateJanuary 2, 20253 updates tracked since enumeration
NPPES CertifiedJanuary 2, 2025
✔ NPI 1386186153 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Women's HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LW0102X
License✔ Licensed in CA · 95004971
Also ListedRegistered NurseTaxonomy 163W00000X · License 821567 (CA)
4201 TORRANCE BLVD STE 600, Torrance, CA 90503

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gail Renee Dewyn Whnp 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 ID4284169525
PECOS Enrollment IDI20241125000650
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 Gail Dewyn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Neurology
11303 W WASHINGTON BLVD, SUITE 100
Los Angeles, CA 90066
  • Reassigned Medicare billing, California enrollment
  • 103 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 90503 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 7

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

Obstetrics & Gynecology
4201 TORRANCE BLVD STE 600
TORRANCE, CA 90503
Obstetrics & Gynecology
4201 TORRANCE BLVD STE 600
TORRANCE, CA 90503
Obstetrics & Gynecology
4201 TORRANCE BLVD STE 600
TORRANCE, CA 90503
Obstetrics & Gynecology (Obstetrics)
4201 TORRANCE BLVD STE 600
TORRANCE, CA 90503
Obstetrics & Gynecology
4201 TORRANCE BLVD STE 600
TORRANCE, CA 90503
Marriage & Family Therapist
4201 TORRANCE BLVD STE 600
TORRANCE, CA 90503
Obstetrics & Gynecology
4201 TORRANCE BLVD STE 600
TORRANCE, CA 90503

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 Gail Dewyn's NPI number?

The NPI number for Gail Dewyn is 1386186153. It was assigned to this individual provider in the NPPES registry on November 10, 2016.

Where is Gail Dewyn located?

Gail Dewyn practices at 4201 Torrance Blvd Ste 600, Torrance, CA 90503. The listed phone number is (310) 316-4373.

What is Gail Dewyn's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Women's Health, with taxonomy code 363LW0102X.

Is Gail Dewyn enrolled in Medicare?

Yes. Gail Dewyn 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.

Which organization bills Medicare for Gail Dewyn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gail Dewyn reassigns Medicare benefits to Regents Of The University Of California Los Angeles (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 Gail Dewyn'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 Gail Dewyn was last updated on January 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.