Physician Profile
Based in Lake Success, NY, Denis A. Ostrovskiy, M.D. is listed in the NPI registry under neurology. Denis is also listed as specializing in specialist. According to Medicare claims data, Denis cared for 2,651 Medicare patients across 2,907 services. The services billed most often include advance care planning, first 30 minutes, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and measurement of brain wave activity (eeg), awake and drowsy.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1991 MARCUS AVENUE SUITE 110
Lake Success, NY 11042
Within Neurology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Headache and facial pain
Memory and cognition
Movement disorders
Neuromuscular and peripheral nerve
Seizures and epilepsy
Stroke and vascular
Brain & Spine
Brain tumors
Head & Facial Pain
Memory & Cognitive
Movement Disorders
Nerve Compression
Sleep & Movement
Spine and nerve
Spine, brain injury, and functional
Most searched procedures
Consultation and testing
Consultations & Exams
Consultations and exams
Device management
Diagnostic Testing
Infusion and medical therapies
Infusions & Therapies
Injections & Pain Relief
Medication Management
Neuromodulation
Office procedures
Trauma & Injury
2,907 services · 2,651 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Measurement of brain wave activity (eeg), awake and drowsy | Treatment | 95816 |
417 | More than most peers in Neurology |
| Administration of psychological or neuropsychological test by technician, first 30 minutes | Treatment | 96138 |
59 | As often as other peers in Neurology |
| Evaluation of neuropsychological test, first hour | Treatment | 96132 |
58 | More often than most peers in Neurology |
| Administration of psychological or neuropsychological test by technician, each additional 30 minutes | Treatment | 96139 |
53 | As often as other peers in Neurology |
| Needle measurement of electrical activity in arm or leg muscles, complete study | Treatment | 95886 |
24 | Less often than most peers in Neurology |
| Advance care planning, first 30 minutes | Office visit | 99497 |
856 | More than most peers in Neurology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
715 | More than most peers in Neurology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
316 | More than most peers in Neurology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
236 | More than most peers in Neurology |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
94 | As often as other peers in Neurology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Denis A. Ostrovskiy is a neurologist in Lake Success, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurology”.
NPI registry
Denis A. Ostrovskiy is listed at 1991 Marcus Avenue Suite 110, Lake Success, NY 11042. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (516) 466-4700. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Denis A. Ostrovskiy's National Provider Identifier is 1437199668. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Denis A. Ostrovskiy attended Other, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
Denis A. Ostrovskiy has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Denis A. Ostrovskiy provides treatments such as measurement of brain wave activity , awake and drowsy and administration of psychological or neuropsychological test by technician, first 30 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Denis A. Ostrovskiy. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.