Mark Lazar, M.D.
NPI 1679639850 · Neurology Physician · East Brunswick, NJ
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Lazar, M.D. is a Neurology Physician provider in East Brunswick, NJ (NPI 1679639850).
Provider details
- NPI number
- 1679639850
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 42290 (NJ)
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
19 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
213 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 | 99 | $140 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 33 | $239 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 33 | $196 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 27 | $449 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 21 | $100 |
Typical Medicare-allowed amounts for these services range $100–$449 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 63 | 16 |
| Donepezil Hcl | 50 | 15 |
| Gabapentin | 49 | 14 |
| Memantine Hcl | 25 | — |
| Galcanezumab-Gnlmbrand: Emgality Pen | 23 | — |
| Duloxetine Hcl | 21 | — |
| Topiramate | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$113 across 7 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
- 2006-12-29
- Last updated
- 2010-12-02
Frequently asked questions
- What is Mark Lazar's NPI number?
- Mark Lazar's National Provider Identifier (NPI) is 1679639850, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Lazar's specialty?
- Mark Lazar is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Lazar located?
- Mark Lazar's practice location on file with NPPES is 573 Cranbury Rd, East Brunswick, NJ 08816-4026.
- What is Mark Lazar's phone number?
- The practice phone number listed in the NPPES registry for Mark Lazar is (732) 254-5101.
- Does Mark Lazar accept Medicare?
- Mark Lazar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Lazar's NPI active?
- Yes — Mark Lazar's NPI (1679639850) is active in the NPPES registry as of the last update on 2010-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.