ELLISON CHANG MD
NPI 1508906181
Psychiatry & Neurology - Psychiatry in Riverside, CA

Q: What is Ellison Chang's NPI number?

The NPI number for Ellison Chang is 1508906181. It was assigned to this individual provider in the NPPES registry on February 6, 2007.

Q: What is Ellison Chang's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ellison Chang was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 February 06, 2007PECOS EnrolledAccepts Medicare Assignment

9990 COUNTY FARM RD # S-3, S-3, RIVERSIDE, CA 92503(951) 358-4647 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Ellison Chang Md NPPES

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

ELLISON CHANG MD (NPI 1508906181) is an individual psychiatry provider in Riverside, California, licensed in California (G67488) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Hawaii John A. Burns School Of Medicine (1988).

NPPES Registry Identity

NPI1508906181

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameELLISON CHANGCredential: MD

Location Address9990 COUNTY FARM RD # S-3, S-3Riverside, CA 92503-3542

Mailing Address10808 Foothill Blvd, S-160 B388Rancho Cucamonga, CA 91730-3889 · (951) 358-4647

Phone(951) 358-4647

Sole ProprietorNo

Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1988

Enumeration DateFebruary 6, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1508906181 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 · G67488

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.

9990 COUNTY FARM RD # S-3, Riverside, CA 92503

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Other Identifiers 1

Medicare UPINF48858CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ellison Chang Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6002707940

PECOS Enrollment IDI20040322000993

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 92503 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

$179.42 typical visit price

range $59.60 – $179.42

Typical copayment $44.85 (range $14.90 – $44.85)

Most-billed visit code 99205

Established Patient

$74.08 typical visit price

range $19.37 – $146.42

Typical copayment $18.52 (range $4.84 – $36.60)

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.

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 Ellison Chang's NPI number?

The NPI number for Ellison Chang is 1508906181. It was assigned to this individual provider in the NPPES registry on February 6, 2007.

Where is Ellison Chang located?

Ellison Chang practices at 9990 County Farm Rd # S-3 S-3, Riverside, CA 92503. The listed phone number is (951) 358-4647.

What is Ellison Chang's specialty?

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

Is Ellison Chang enrolled in Medicare?

Yes. Ellison Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Ellison Chang was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.