Grace Kwon, D.O.
NPI 1326347873 · Psychiatry Physician · Tustin, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Kwon, D.O. is a Psychiatry Physician provider in Tustin, CA (NPI 1326347873).
Provider details
- NPI number
- 1326347873
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A12013 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,458 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 839 | $138 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 231 | $75 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 186 | $95 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 62 | $194 |
| Psychiatric Services Complicated By Communication Factor90785 | 57 | $15 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Quetiapine Fumarate | 79 |
| Gabapentin | 50 |
| Lamotrigine | 38 |
| Clonazepam | 36 |
| Haloperidol | 30 |
| Escitalopram Oxalate | 24 |
| Duloxetine Hcl | 23 |
| Propranolol Hcl | 22 |
| Paliperidonebrand: Paliperidone Er | 22 |
| Divalproex Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-03-23
- Last updated
- 2026-05-07
- Certified
- 2026-05-07
Frequently asked questions
- What is Grace Kwon's NPI number?
- Grace Kwon's National Provider Identifier (NPI) is 1326347873, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Kwon's specialty?
- Grace Kwon is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Kwon located?
- Grace Kwon's practice location on file with NPPES is 17452 Irvine Blvd Ste 213, Tustin, CA 92780-3031.
- What is Grace Kwon's phone number?
- The practice phone number listed in the NPPES registry for Grace Kwon is (714) 371-6977.
- Does Grace Kwon accept Medicare?
- Grace Kwon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Kwon's NPI active?
- Yes — Grace Kwon's NPI (1326347873) is active in the NPPES registry as of the last update on 2026-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.