Gene Yen, PSYCHIATRIST
NPI 1477581379 · Psychiatry Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1477581379
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- PSYCHIATRIST
- Sex
- Male
- Sole proprietor
- No
- License
- A71973 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
372 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) |
|---|---|---|
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 203 | $137 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 152 | $139 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 17 | $98 |
Typical Medicare-allowed amounts for these services range $98–$139 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Olanzapine | 173 | 16 |
| Trazodone Hcl | 116 | 14 |
| Mirtazapine | 101 | — |
| Risperidone | 89 | — |
| Quetiapine Fumarate | 77 | — |
| Escitalopram Oxalate | 67 | — |
| Aripiprazole | 63 | — |
Practice location
Mailing address
Additional practice locations (2)
- 11050 Artesia Blvd Ste ECerritos, CA 90703-2542Phone: (562) 860-8838
- 520 S La Fayette Park Pl Ste 300Los Angeles, CA 90057-5400Phone: (213) 252-2100Fax: (213) 252-2199
Registry dates
- Enumerated
- 2006-06-29
- Last updated
- 2020-12-30
- Certified
- 2020-12-30
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.