HELENE HOI M.D.
NPI 1952609190
Pediatrics in Mountain View, CA

Q: What is Helene Hoi's NPI number?

The NPI number for Helene Hoi is 1952609190. It was assigned to this individual provider in the NPPES registry on March 12, 2011.

Q: What is Helene Hoi's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Helene Hoi was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 March 12, 2011PECOS Enrolled

701 E EL CAMINO REAL, MOUNTAIN VIEW, CA 94040(650) 934-7956(650) 934-7953 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Helene Hoi M.d. NPPES

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

HELENE HOI M.D. (NPI 1952609190) is an individual pediatrics provider in Mountain View, California, licensed in California (A114945) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1952609190

Entity TypeIndividualFemale

Primary Taxonomy208000000X

Provider Legal NameHELENE HOICredential: M.D.

Location Address701 E EL CAMINO REALMountain View, CA 94040-2833

Mailing Address2350 W. El Camino Real, 2nd FloorMountain View, CA 94040-6203

Phone(650) 934-7956

Fax(650) 934-7953

Sole ProprietorNo

Enumeration DateMarch 12, 2011

Last NPPES UpdateMarch 7, 2023

✔ NPI 1952609190 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in CA · A114945

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.

701 E EL CAMINO REAL, Mountain View, CA 94040

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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)

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

Sutter Bay Medical Foundation

6.8 mi

Multi-Specialty

795 EL CAMINO REAL
Palo Alto, CA 94301

Reassigned Medicare billing, California enrollment
4,479 clinicians in this Medicare group

NPI 1013950807 (650) 321-4121

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 94040 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

$106.47 typical visit price

range $70.37 – $206.04

Typical copayment $26.61 (range $17.59 – $51.51)

Most-billed visit code 99203

Established Patient

$121.77 typical visit price

range $23.96 – $169.60

Typical copayment $30.44 (range $5.99 – $42.40)

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 20

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

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