Physician Profile
Based in Farmington, CT, Mason P. Leeman-Markowski, MD, PhD is listed in the NPI registry under vascular neurology. Mason is also listed as specializing in clinical neurophysiology. Medicare claims data shows Mason provided 212 services to 189 patients. The services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes, and measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
263 FARMINGTON AVE
Farmington, CT 06030
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
212 services · 189 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Measurement of brain wave activity with video (veeg), 12-26 hours with review and report by health care professional | Treatment | 95720 |
22 |
| Measurement of brain wave activity (eeg), 41-60 minutes | Treatment | 95812 |
13 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
52 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
41 |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
21 |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
18 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
17 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
15 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Leeman-Markowski is a vascular neurology in Farmington, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Leeman-Markowski is listed at 263 Farmington Ave, Farmington, CT 06030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (860) 679-4888. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Leeman-Markowski's National Provider Identifier is 1962666545. 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
Dr. Leeman-Markowski attended Other, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
Dr. Leeman-Markowski has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Leeman-Markowski provides treatments such as measurement of brain wave activity with video , 12-26 hours with review and report by health care professional and measurement of brain wave activity , 41-60 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 Dr. Leeman-Markowski. 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.