TOSHIA ANN YAMAGUCHI M.D.
NPI 1932558715
Psychiatry & Neurology - Psychiatry in Riverside, CA

Q: What is Toshia Ann Yamaguchi's NPI number?

The NPI number for Toshia Ann Yamaguchi is 1932558715. It was assigned to this individual provider in the NPPES registry on June 13, 2016.

Q: What is Toshia Ann Yamaguchi's specialty?

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

Active since June 13, 2016PECOS EnrolledAccepts Medicare Assignment

4095 COUNTY CIRCLE DR, RIVERSIDE, CA 92503(951) 358-4500 Get Directions Write a Review

NPPES record last updated: February 10, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 10, 2020, Feb 9, 2020, Jun 13, 2016 (3 updates tracked since 2016).

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About Toshia Ann Yamaguchi M.d. NPPES

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

TOSHIA ANN YAMAGUCHI M.D. (NPI 1932558715) is an individual psychiatry provider in Riverside, California, licensed in California (A150914) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (2016).

NPPES Registry Identity

NPI1932558715

Entity TypeIndividualFemale

Primary Taxonomy2084P0800X

Provider Legal NameTOSHIA ANN YAMAGUCHICredential: M.D.

Location Address4095 COUNTY CIRCLE DRRiverside, CA 92503-3410

Mailing Address4095 County Circle DrRiverside, CA 92503-3410 · (951) 358-4500

Phone(951) 358-4500

Sole ProprietorNo

Medical School CMSCreighton University School Of MedicineGraduated 2016

Enumeration DateJune 13, 2016

Last NPPES UpdateFebruary 10, 20203 updates tracked since enumeration

✔ NPI 1932558715 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 · A150914

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.

4095 COUNTY CIRCLE DR, Riverside, CA 92503

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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 and accepts Medicare assignment

Toshia Ann Yamaguchi M.d. 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 ID143608406

PECOS Enrollment IDI20220527002162

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.

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.

AMY PATEL MD

Psychiatry & Neurology (Psychiatry)