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ALLISON CHANG MD
NPI 1114662574
Psychiatry & Neurology - Psychiatry in Palo Alto, CA

Active since April 30, 2022PECOS Enrolled
401 QUARRY RD RM 2206, PALO ALTO, CA 94304(650) 725-0957 Get Directions Write a Review

NPPES record last updated: April 15, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: May 26, 2023, May 15, 2023, Apr 30, 2022 (3 updates tracked since 2022).

About Allison Chang Md NPPES

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

ALLISON CHANG MD (NPI 1114662574) is an individual psychiatry provider in Palo Alto, California, licensed in Hawaii (MDR-8286) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114662574
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameALLISON CHANGCredential: MD
Location Address401 QUARRY RD RM 2206Palo Alto, CA 94304-1419
Mailing Address401 Quarry Rd Rm 2206Palo Alto, CA 94304-1419
Phone(650) 725-0957
Sole ProprietorNo
Enumeration DateApril 30, 2022
Last NPPES UpdateApril 15, 20253 updates tracked since enumeration
NPPES CertifiedApril 15, 2025
✔ NPI 1114662574 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in HI · MDR-8286
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.
Also ListedPsychiatry & Neurology · Child & Adolescent PsychiatryTaxonomy 2084P0804X · License A201276 (CA)
401 QUARRY RD RM 2206, Palo Alto, CA 94304
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Allison Chang Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94304 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
$206.04 typical visit price
range $70.37 – $206.04
Typical copayment $51.51 (range $17.59 – $51.51)
Most-billed visit code 99205
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
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 10

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

DANIEL CRAWFORD MILLER-AZAR MD
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD RM 2206
PALO ALTO, CA 94304
Santa Clara County (650) 723-5511
SCOTT LEE MD
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD RM 2206
PALO ALTO, CA 94304
Santa Clara County (650) 723-5511
IDEEN KIAFAR DO
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD RM 2206
PALO ALTO, CA 94304
Santa Clara County (650) 723-5511
DR. JANET BAEK MD
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD RM 2206
PALO ALTO, CA 94304
Santa Clara County (650) 725-0957
DR. ANNA JUNE SHEEN MD
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD RM 2206
PALO ALTO, CA 94304
Santa Clara County (650) 723-5511
SAHANA RAJAN
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD RM 2206
PALO ALTO, CA 94304
Santa Clara County (650) 723-5511
DR. ARANY UTHAYAKUMAR MD
Psychiatry & Neurology (Child & Adolescent Psychiatry)
401 QUARRY RD RM 2206
PALO ALTO, CA 94304
Santa Clara County (650) 723-5511
ELIZABETH ABOSEDE OGUNRINDE MD, PHD
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD RM 2206
PALO ALTO, CA 94304
Santa Clara County (650) 723-5511

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 Allison Chang's NPI number?

The NPI number for Allison Chang is 1114662574. It was assigned to this individual provider in the NPPES registry on April 30, 2022.

Where is Allison Chang located?

Allison Chang practices at 401 Quarry Rd Rm 2206, Palo Alto, CA 94304. The listed phone number is (650) 725-0957.

What is Allison Chang's specialty?

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

Is Allison Chang enrolled in Medicare?

Yes. Allison Chang is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Allison Chang was last updated on April 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.