Lawrence Gross, M.D.
NPI 1427032366 · Psychiatry Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lawrence Gross, M.D. is a Psychiatry Physician provider in Los Angeles, CA (NPI 1427032366).
Provider details
- NPI number
- 1427032366
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G44631 (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
20 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
195 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 | 107 | $114 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 64 | $78 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 24 | $169 |
Typical Medicare-allowed amounts for these services range $78–$169 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Escitalopram Oxalate | 50 | 11 |
| Quetiapine Fumarate | 41 | — |
| Risperidone | 40 | — |
| Fluoxetine Hcl | 31 | — |
| Sertraline Hcl | 31 | — |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 23 | — |
| Bupropion Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-05
- Last updated
- 2024-06-21
- Certified
- 2024-06-21
Frequently asked questions
- What is Lawrence Gross's NPI number?
- Lawrence Gross's National Provider Identifier (NPI) is 1427032366, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lawrence Gross's specialty?
- Lawrence Gross is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Lawrence Gross located?
- Lawrence Gross's practice location on file with NPPES is 1520 San Pablo St, Los Angeles, CA 90033-5321.
- What is Lawrence Gross's phone number?
- The practice phone number listed in the NPPES registry for Lawrence Gross is (323) 442-6000.
- Does Lawrence Gross accept Medicare?
- Lawrence Gross is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lawrence Gross's NPI active?
- Yes — Lawrence Gross's NPI (1427032366) is active in the NPPES registry as of the last update on 2024-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.