DIEGO FABIAN LERNER (M.D.) – Psychiatry Physician, NPI 1750386801
Psychiatry Physician
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,134 PSYCHIATRY in CA
Provider Addresses for DIEGO FABIAN LERNER (M.D.)
24050 MADISON ST
TORRANCE, CA 905056015
Phone: (310) 540-4820
Fax: (888) 945-3792
Type: Location
Avenida del Norte, Redondo Beach, Los Angeles County, California, 90277, United States
REDONDO BEACH, CA 902775702
Phone: (310) 540-4820
Fax: (310) 540-9360
Type: Mailing
4733 TORRANCE BLVD # 277
TORRANCE, CA 905034100
Phone: (310) 540-4820
Fax: (888) 945-3792
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-12-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20041230000443 | I | Psychiatry | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99347 | Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes | 317 | 35 | $0 |
| 90833 | Psychotherapy with evaluation and management visit, 30 minutes | 249 | 44 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 178 | 42 | $0 |
| 99348 | Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | 69 | 21 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 64 | 28 | $0 |
Insurance plans in this area (ZIP 90505)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PSYCHIATRY | CA | 90833 | Psychotherapy, 30 minutes with patient and/or family member | 180 | 34 |
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