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CHEN YING WU MD
NPI 1144576299
Psychiatry & Neurology - Psychiatry in Diamond Bar, CA

Active since July 26, 2012PECOS EnrolledAccepts Medicare Assignment
21015 PATHFINDER RD STE 101, DIAMOND BAR, CA 91765(999) 999-9999 Get Directions Write a Review

NPPES record last updated: October 10, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Oct 10, 2025, Oct 9, 2024, Jul 31, 2024 and 2 more (5 updates tracked since 2016).

About Chen Ying Wu Md NPPES

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

CHEN YING WU MD (NPI 1144576299) is an individual psychiatry provider in Diamond Bar, California, licensed in California (A133011) and active in the NPI registry since July 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Fullerton, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1144576299
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameCHEN YING WUCredential: MD
Location Address21015 PATHFINDER RD STE 101Diamond Bar, CA 91765-4002
Mailing Address21015 Pathfinder Rd Ste 110Diamond Bar, CA 91765-4020 · (916) 479-3496 · Fax (336) 967-7342
Phone(999) 999-9999
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateJuly 26, 2012
Last NPPES UpdateOctober 10, 20255 updates tracked since enumeration
NPPES CertifiedOctober 10, 2025
✔ NPI 1144576299 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 · A133011
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.
21015 PATHFINDER RD STE 101, Diamond Bar, CA 91765
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Secondary Practice Location 1

Location 11519 E Chapman Ave # 289Fullerton, CA 92831-4013 · Phone (999) 999-9999 · Fax (336) 967-7342

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

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

Chen Ying Wu 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 ID6002108586
PECOS Enrollment IDI20190126000048
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 91765 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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.

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 Chen Ying Wu's NPI number?

The NPI number for Chen Ying Wu is 1144576299. It was assigned to this individual provider in the NPPES registry on July 26, 2012.

Where is Chen Ying Wu located?

Chen Ying Wu practices at 21015 Pathfinder Rd Ste 101, Diamond Bar, CA 91765. The listed phone number is (999) 999-9999.

What is Chen Ying Wu's specialty?

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

Is Chen Ying Wu enrolled in Medicare?

Yes. Chen Ying Wu 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.

What insurance does Chen Ying Wu accept?

Health plans from Providence Health Plan list Chen Ying Wu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Chen Ying Wu was last updated on October 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.