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GRACE EUN KWON D.O.
NPI 1326347873
Psychiatry & Neurology - Psychiatry in Tustin, CA

Active since March 23, 2011PECOS EnrolledAccepts Medicare Assignment
17452 IRVINE BLVD STE 213, TUSTIN, CA 92780(714) 371-6977(800) 836-2401 Get Directions Write a Review

NPPES record last updated: May 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 7, 2026, Mar 24, 2026 (2 updates tracked since 2026).

About Grace Eun Kwon D.o. NPPES

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

GRACE EUN KWON D.O. (NPI 1326347873) is an individual psychiatry provider in Tustin, California, licensed in California (20A12013) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1326347873
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameGRACE EUN KWONCredential: D.O.
Location Address17452 IRVINE BLVD STE 213Tustin, CA 92780-3031
Mailing Address10212 Cowan Heights DrSanta Ana, CA 92705-1566 · (310) 753-5805 · Fax (800) 896-2401
Phone(714) 371-6977
Fax(800) 836-2401
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateMarch 23, 2011
Last NPPES UpdateMay 7, 20262 updates tracked since enumeration
NPPES CertifiedMay 7, 2026
✔ NPI 1326347873 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 CA · 20A12013
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 · Addiction PsychiatryTaxonomy 2084P0802X · License 20A12013 (CA)
17452 IRVINE BLVD STE 213, Tustin, CA 92780
Open in Google Maps ↗

Other Identifiers 2

Other008059045CT · Kwon Medicaid
OtherD400248447CT · Kwon Medicare

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Grace Eun Kwon D.o. 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 ID3971811159
PECOS Enrollment IDI20160908000250
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Grace Kwon reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grace Kwon Corporation
Same address
Psychiatry
17452 IRVINE BLVD STE 213
Tustin, CA 92780
  • Reassigned Medicare billing, California enrollment
NPI 1255898706 (657) 371-6977
Harbor Psychiatry & Mental Health, Professional Corporation
5.8 mi
Psychiatry
4631 TELLER AVE STE 100
Newport Beach, CA 92660
  • Reassigned Medicare billing, California enrollment
  • 31 clinicians in this Medicare group
NPI 1780050054 (949) 887-7187
Grow Healthcare Group PC
337 mi
Mental Health
99 S ALMADEN BLVD STE 600
San Jose, CA 95113
  • Reassigned Medicare billing, California enrollment
  • 3,139 clinicians in this Medicare group
NPI 1154994846 (408) 402-4385

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
839 services180 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
231 services96 patients
Psychotherapy with evaluation and management visit, 45 minutes 90836
Psychotherapy with evaluation and management is a 45-minute session where a healthcare provider discusses your mental and emotional health. They assess your current state, manage any issues, and help you develop coping strategies. This service aims to improve your overall well-being.
186 services71 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
62 services27 patients
Psychiatric services complicated by communication factor 90785
Psychiatric services complicated by communication factors involve mental health care for individuals who have challenges with communication. This can include language barriers, speech disorders, or cognitive impairments. The process involves tailored strategies to ensure effective communication and appropriate mental health care.
57 services27 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
47 services47 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92780 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 4

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

CHRISTIAN ANTHONY DEMMAN AMFT
Marriage & Family Therapist
17452 IRVINE BLVD STE 213
TUSTIN, CA 92780
Orange County (000) 000-0000
STEPHANIE BAYLY LPCC
Counselor (Professional)
17452 IRVINE BLVD STE 213
TUSTIN, CA 92780
Orange County (619) 786-3776
GRACE KWON CORPORATION
Psychiatry & Neurology (Psychiatry)
17452 IRVINE BLVD STE 213
TUSTIN, CA 92780
Orange County (657) 371-6977
ERIN FRASER BENESCH, INC
Clinic/Center (Mental Health (Including Community Mental Health Center))
17452 IRVINE BLVD STE 213
TUSTIN, CA 92780
Orange County (714) 253-4697

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 Grace Kwon's NPI number?

The NPI number for Grace Kwon is 1326347873. It was assigned to this individual provider in the NPPES registry on March 23, 2011.

Where is Grace Kwon located?

Grace Kwon practices at 17452 Irvine Blvd Ste 213, Tustin, CA 92780. The listed phone number is (714) 371-6977.

What is Grace Kwon's specialty?

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

Is Grace Kwon enrolled in Medicare?

Yes. Grace Kwon 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.

Which organizations bill Medicare for Grace Kwon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grace Kwon reassigns Medicare benefits to 3 organizations: Grace Kwon Corporation (Tustin, CA), Harbor Psychiatry & Mental Health, Professional Corporation (Newport Beach, CA) and Grow Healthcare Group PC (San Jose, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Grace Kwon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Grace Kwon was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.