AYUMI IMAI
NPI 1861748642
Advanced Practice Midwife in Redwood City, CA

Q: What is Ayumi Imai's NPI number?

The NPI number for Ayumi Imai is 1861748642. It was assigned to this individual provider in the NPPES registry on July 30, 2012.

Q: What is Ayumi Imai'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 Ayumi Imai was last updated on January 3, 2022. 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.

Active since July 30, 2012PECOS Enrolled

1150 VETERANS BLVD, REDWOOD CITY, CA 94063(650) 299-2000 Get Directions Write a Review

NPPES record last updated: January 3, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Ayumi Imai NPPES

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

AYUMI IMAI (NPI 1861748642) is an individual advanced practice midwife in Redwood City, California, licensed in California (1954) and active in the NPI registry since July 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861748642

Entity TypeIndividualFemale

Primary Taxonomy367A00000X

Provider Legal NameAYUMI IMAI

Location Address1150 VETERANS BLVDRedwood City, CA 94063-2037

Mailing Address55 Bay CtSouth San Francisco, CA 94080-3464 · (650) 952-6642

Phone(650) 299-2000

Sole ProprietorNo

Enumeration DateJuly 30, 2012

Last NPPES UpdateJanuary 3, 2022

✔ NPI 1861748642 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 · 1954

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 ListedNurse Practitioner · Women's HealthTaxonomy 363LW0102X · License 21102 (CA)

1150 VETERANS BLVD, Redwood City, CA 94063

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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)

Ayumi Imai 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 Ayumi Imai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc

Same address

Internal Medicine

1190 VETERANS BLVD
Redwood City, CA 94063

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1639252604 (650) 299-2000

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 94063 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

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 20

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

PATRICIA KO PHARMD

Pharmacist

1150 VETERANS BLVD
REDWOOD CITY, CA 94063

San Mateo County (650) 299-3004

BRIAN A. ROLING DPM

Podiatrist

1150 VETERANS BLVD
REDWOOD CITY, CA 94063

San Mateo County (650) 299-2000

AMY E. TRAUM MD

Hospitalist

1150 VETERANS BLVD
REDWOOD CITY, CA 94063

San Mateo County (650) 299-2000

DOROTHY D. NGUYEN MD

Internal Medicine (Hematology & Oncology)

1150 VETERANS BLVD
REDWOOD CITY, CA 94063

San Mateo County (650) 299-2588

DR. DANNY S LEE PHARM.D.

Pharmacist

1150 VETERANS BLVD
REDWOOD CITY, CA 94063

San Mateo County (650) 299-3567

ANAGHA V JAIN MD

Internal Medicine (Nephrology)

1150 VETERANS BLVD, NEPHROLOGY DEPT
REDWOOD CITY, CA 94063

San Mateo County (650) 299-4107

ARLENE MCCARTHY

Physical Therapist

1150 VETERANS BLVD
REDWOOD CITY, CA 94063

San Mateo County (650) 299-4059

PADMAVATHI SAINATH MD

Hospitalist

1150 VETERANS BLVD
REDWOOD CITY, CA 94063

San Mateo County (650) 299-2000

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 Ayumi Imai's NPI number?

The NPI number for Ayumi Imai is 1861748642. It was assigned to this individual provider in the NPPES registry on July 30, 2012.

Where is Ayumi Imai located?

Ayumi Imai practices at 1150 Veterans Blvd, Redwood City, CA 94063. The listed phone number is (650) 299-2000.

What is Ayumi Imai's specialty?

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

Is Ayumi Imai enrolled in Medicare?

Yes. Ayumi Imai is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ayumi Imai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ayumi Imai reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, 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 Ayumi Imai'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 Ayumi Imai was last updated on January 3, 2022. 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.