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KAREN CHEN M.D.
NPI 1598023103
Psychiatry & Neurology - Psychiatry in Costa Mesa, CA

Active since May 02, 2012PECOS EnrolledAccepts Medicare Assignment
2900 BRISTOL ST STE B201, COSTA MESA, CA 92626(855) 867-5551 Get Directions Write a Review

NPPES record last updated: November 25, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Karen Chen M.d. NPPES

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

KAREN CHEN M.D. (NPI 1598023103) is an individual psychiatry provider in Costa Mesa, California, licensed in California (A136429) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS and is a graduate of Georgetown University School Of Medicine (2012).

NPPES Registry Identity

NPI1598023103
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameKAREN CHENCredential: M.D.
Location Address2900 BRISTOL ST STE B201Costa Mesa, CA 92626-5948
Mailing AddressPo Box 193Lomita, CA 90717-0193
Phone(855) 867-5551
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 2012
Enumeration DateMay 2, 2012
Last NPPES UpdateNovember 25, 2025
NPPES CertifiedNovember 25, 2025
✔ NPI 1598023103 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 · A136429
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.
2900 BRISTOL ST STE B201, Costa Mesa, CA 92626
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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

Karen Chen 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 ID6305321647
PECOS Enrollment IDI20260403001259
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 92626 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.

Other Providers at the Same Location NPPES 2

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

MARYAM OBEYD FAMILY THERAPY INC
Counselor (Mental Health)
2900 BRISTOL ST STE B201
COSTA MESA, CA 92626
Orange County (949) 385-1878
MARYAM OBEYD
Marriage & Family Therapist
2900 BRISTOL ST STE B201
COSTA MESA, CA 92626
Orange County (855) 857-5551

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 Karen Chen's NPI number?

The NPI number for Karen Chen is 1598023103. It was assigned to this individual provider in the NPPES registry on May 2, 2012.

Where is Karen Chen located?

Karen Chen practices at 2900 Bristol St Ste B201, Costa Mesa, CA 92626. The listed phone number is (855) 867-5551.

What is Karen Chen's specialty?

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

Is Karen Chen enrolled in Medicare?

Yes. Karen Chen 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 Karen Chen was last updated on November 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.