WILLIE LARSON CNM
NPI 1053062943
Advanced Practice Midwife in Santa Monica, CA

Q: What is Willie Larson's NPI number?

The NPI number for Willie Larson is 1053062943. It was assigned to this individual provider in the NPPES registry on January 12, 2022.

Q: What is Willie Larson's specialty?

The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.

Q: When was this NPI record last updated?

The NPPES record for Willie Larson was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since January 12, 2022PECOS Enrolled

2001 SANTA MONICA BLVD STE 380, SANTA MONICA, CA 90404(310) 899-7500 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jul 7, 2026, Mar 11, 2025, Jan 12, 2022 (3 updates tracked since 2022).

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About Willie Larson Cnm NPPES

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

WILLIE LARSON CNM (NPI 1053062943) is an individual advanced practice midwife in Santa Monica, California, licensed in California (236523) and active in the NPI registry since January 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1053062943

Entity TypeIndividualFemale

Primary Taxonomy367A00000X

Provider Legal NameWILLIE LARSONCredential: CNM

Location Address2001 SANTA MONICA BLVD STE 380Santa Monica, CA 90404-2179

Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631

Phone(310) 899-7500

Sole ProprietorNo

Enumeration DateJanuary 12, 2022

Last NPPES UpdateJuly 7, 20263 updates tracked since enumeration

NPPES CertifiedJuly 7, 2026

✔ NPI 1053062943 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAdvanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367A00000X

License✔ Licensed in CA · 236523

Definition

Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproductive health; gynecologic health; and family planning services, including preconception care. Midwives also provide primary care for individuals from adolescence throughout the lifespan as well as care for the healthy newborn during the first 28 days of life. Midwives provide initial and ongoing comprehensive assessment, diagnosis, and treatment. Midwifery care includes health promotion, disease prevention, risk assessment and management, and individualized wellness education and counseling. Source: American College of Nurse-Midwives, www.midwife.org Additional Resources: See the American College of Nurse-Midwives, www.midwife.org, for more information on Certified Nurse-Midwives, Certified Midwives, the American Midwifery Certification Board (AMCB), and licensure.

Also ListedRegistered NurseTaxonomy 163W00000X · License 95229614 (CA)

2001 SANTA MONICA BLVD STE 380, Santa Monica, CA 90404

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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)

Willie Larson Cnm 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 Willie Larson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of California Los Angeles

4.1 mi

Neurology

11303 W WASHINGTON BLVD, SUITE 100
Los Angeles, CA 90066

Reassigned Medicare billing, California enrollment
103 clinicians in this Medicare group

NPI 1609194497 (310) 391-7281

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 90404 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

$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.

Other Providers at the Same Location NPPES 14

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

MAYANO OCHI C.N.M.

Advanced Practice Midwife