Mark Lew, M.D.
NPI 1578507505 · Neurology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Lew, M.D. is a Neurology Physician provider in Los Angeles, CA (NPI 1578507505).
Provider details
- NPI number
- 1578507505
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A45068 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
775 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 315 | $101 |
| Needle Measurement of Electrical Activity in Muscle With Injection of Chemical for Paralysis of Nerve Muscle95874 | 113 | $20 |
| Injection of Chemical for Paralysis of Nerve Muscles on Side of Neck Excluding Voice Box64616 | 100 | $112 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 84 | $103 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 63 | $151 |
| Injection of Chemical for Paralysis of Nerve Muscles on Side of Face |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 448 | 109 |
| Rasagiline Mesylate | 235 | 49 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa Er | 189 | 41 |
| Clonazepam | 128 | 21 |
| Carbidopa/Levodopabrand: Rytary | 109 | 22 |
| Amantadine Hclbrand: Amantadine | 91 | 24 |
| Mirtazapine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24,881 across 33 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-16
- Last updated
- 2023-11-27
- Certified
- 2020-09-21
Frequently asked questions
- What is Mark Lew's NPI number?
- Mark Lew's National Provider Identifier (NPI) is 1578507505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lew's specialty?
- Mark Lew is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lew located?
- Mark Lew's practice location on file with NPPES is 1520 San Pablo St, Los Angeles, CA 90033-5310.
- What is Mark Lew's phone number?
- The practice phone number listed in the NPPES registry for Mark Lew is (323) 442-5710.
- Does Mark Lew accept Medicare?
- Mark Lew is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Lew's NPI active?
- Yes — Mark Lew's NPI (1578507505) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.