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ANTONIA LEIGH COTWRIGHT D.O.
NPI 1003014523
Obstetrics & Gynecology in Redondo Beach, CA

Active since July 05, 2007PECOS Enrolled
510 N PROSPECT AVE STE 320, REDONDO BEACH, CA 90277(310) 376-2716(310) 374-9163 Get Directions Write a Review

NPPES record last updated: December 8, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Antonia Leigh Cotwright D.o. NPPES

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

ANTONIA LEIGH COTWRIGHT D.O. (NPI 1003014523) is an individual obstetrics & gynecology provider in Redondo Beach, California, licensed in Illinois (036-118703) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003014523
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameANTONIA LEIGH COTWRIGHTCredential: D.O.
Location Address510 N PROSPECT AVE STE 320Redondo Beach, CA 90277-3032
Mailing Address510 N Prospect Ave Ste 320Redondo Beach, CA 90277-3032 · (310) 376-2716 · Fax (310) 374-9163
Phone(310) 376-2716
Fax(310) 374-9163
Sole ProprietorNo
Enumeration DateJuly 5, 2007
Last NPPES UpdateDecember 8, 2021
✔ NPI 1003014523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IL · 036-118703
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
510 N PROSPECT AVE STE 320, Redondo Beach, CA 90277
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Antonia Leigh Cotwright D.o. 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 Antonia Cotwright reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
5.8 mi
Health Maintenance Organization
2700 W 120TH ST
Hawthorne, CA 90250
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1164914115 (877) 608-0044

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 90277 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
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 Antonia Cotwright's NPI number?

The NPI number for Antonia Cotwright is 1003014523. It was assigned to this individual provider in the NPPES registry on July 5, 2007.

Where is Antonia Cotwright located?

Antonia Cotwright practices at 510 N Prospect Ave Ste 320, Redondo Beach, CA 90277. The listed phone number is (310) 376-2716.

What is Antonia Cotwright's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Antonia Cotwright enrolled in Medicare?

Yes. Antonia Cotwright is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Antonia Cotwright's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Antonia Cotwright reassigns Medicare benefits to Southern California Permanente Medical Group (Hawthorne, 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 Antonia Cotwright'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 Antonia Cotwright was last updated on December 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.