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LESLIE CHIA-MEI HSU M.D.
NPI 1699846725
Psychiatry & Neurology - Psychiatry in Portola Valley, CA

Active since November 11, 2006Opted out of Medicare · through Aug 27, 2026
4370 ALPINE RD, SUITE 105, PORTOLA VALLEY, CA 94028(650) 851-3121 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Leslie Chia-mei Hsu M.d. NPPES

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

LESLIE CHIA-MEI HSU M.D. (NPI 1699846725) is an individual psychiatry provider in Portola Valley, California, licensed in California (G32250) and active in the NPI registry since November 2006. She has opted out of Medicare through August 27, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1699846725
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameLESLIE CHIA-MEI HSUCredential: M.D.
Location Address4370 ALPINE RD, SUITE 105Portola Valley, CA 94028-7952
Mailing Address4370 Alpine Rd, Suite 105Portola Valley, CA 94028-7952 · (650) 851-3121
Phone(650) 851-3121
Sole ProprietorYes
Enumeration DateNovember 11, 2006
Last NPPES UpdateMarch 7, 2023
✔ NPI 1699846725 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · G32250
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
4370 ALPINE RD, Portola Valley, CA 94028
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Other Identifiers 1

OtherG32250CA · Medical License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Leslie Chia-mei Hsu M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 27, 2014 through August 27, 2026.

Opt-Out Effective DateAugust 27, 2014
Opt-Out In Effect ThroughAugust 27, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94028 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
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 6

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

JOHANNA MAYER PHD
Psychologist
4370 ALPINE RD, SUITE 102
PORTOLA VALLEY, CA 94028
San Mateo County (650) 851-1164
DR. KERRY DEAN KRAVITZ M.D.
Psychiatry & Neurology (Psychiatry)
4370 ALPINE RD, SUITE 210
PORTOLA VALLEY, CA 94028
San Mateo County (650) 529-2333
KATHERINE OHANLAN M.D.
Obstetrics & Gynecology (Gynecologic Oncology)
4370 ALPINE RD, SUITE 104
PORTOLA VALLEY, CA 94028
San Mateo County (650) 851-6669
RICHARD H. LAUDE, M.D., INC.
Psychiatry & Neurology (Psychiatry)
4370 ALPINE RD, SUITE 105
PORTOLA VALLEY, CA 94028
San Mateo County (650) 851-0226
DR. RICHARD HORTON LAUDE M.D.
Psychiatry & Neurology (Psychiatry)
4370 ALPINE RD, SUITE 105
PORTOLA VALLEY, CA 94028
San Mateo County (650) 851-0226
ANNE F HENZEL
Ophthalmology
4370 ALPINE RD, SUITE 200
PORTOLA VALLEY, CA 94028
San Mateo County (650) 325-3937

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 Leslie Hsu's NPI number?

The NPI number for Leslie Hsu is 1699846725. It was assigned to this individual provider in the NPPES registry on November 11, 2006.

Where is Leslie Hsu located?

Leslie Hsu practices at 4370 Alpine Rd Suite 105, Portola Valley, CA 94028. The listed phone number is (650) 851-3121.

What is Leslie Hsu's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Leslie Hsu enrolled in Medicare?

No. Leslie Hsu has opted out of Medicare through August 27, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Leslie Hsu 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.