CMS-1500 Box 24J / 33a • NPI
1841817012
Type 1 Individual Rendering/Ordering
HIPAA NUCC Taxonomy • CMS Code
2084N0600X (CMS 86)
Board-Certified Neurologist (Brain, Spine, Stroke & Nerve Specialist)
Box 32 Service Location & ZIP+4
20 YORK ST, NEW HAVEN, CT, 06510-3220
✓ 9-Digit EDI 837 ZIP+4 (06510-3220)
✓ HHS OIG LEIE Sanction Screening — VERIFIED CLEAR:
NPI
1841817012 (LOUISE MARIAN MC CARTHY, MB BCh BAO) has 0 active federal exclusions across all 84,224 HHS OIG LEIE sanction records (Database Verified: 2026-11-11).
CMS Medicare Order & Referring PECOS Eligibility
Medicare Part B
✓ Eligible
DMEPOS Ordering
✓ Eligible
Home Health (HHA)
✓ Eligible
Power Mobility
✓ Eligible
Hospice Referring
✓ Eligible
Empirical CMS Medicare Claims, CPT Utilization & Part D Prescribing (NPI #1841817012)
Actual Top Prescribed Medications (CMS Part D)
| Brand / Generic Medication | Total Claims | Patients |
|---|---|---|
| Donepezil Hcl Donepezil Hcl | 22 | <11 |
| Gabapentin Gabapentin | 17 | <11 |
Official CMS NPPES Credential & Practice Profile
| 10-Digit NPI Number | 1841817012 (NPI-1 Individual Practitioner) |
|---|---|
| Provider / Legal Name | LOUISE MARIAN MC CARTHY, MB BCh BAO |
| Plain-English Specialty | Board-Certified Neurologist (Brain, Spine, Stroke & Nerve Specialist) NUCC Code: 2084N0600X (N/A) |
| Certifying / Licensing Body | American Board of Psychiatry and Neurology (ABPN) |
| Practice Location Address | 20 YORK ST, NEW HAVEN, CT, 06510-3220 |
| Practice Telephone / Fax | Tel: (203) 688-4242 |
| Administrative Mailing Address | 20 YORK ST, NEW HAVEN, CT, 06510-3220 |
| Enumeration & Last Sync | Enumerated: 2020-07-02 | CMS Record Updated: 2026-06-16 |
Clinic Location, Accessibility & Directions
📍 Practice Location & Patient Access
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Plain-English Taxonomy & CMS Crosswalk (2084N0600X)
What Does Taxonomy Code 2084N0600X Mean?
In the HIPAA National Uniform Claim Committee (NUCC) classification, code 2084N0600X translates to:
"Board-Certified Neurologist (Brain, Spine, Stroke & Nerve Specialist)"
Specialty Clinical Procedures & Therapeutic Classes
Standard Scope of Care (LOUISE MARIAN MC CARTHY, MB BCh BAO)
Typical CPT / Diagnostic Procedures:- Electroencephalography (EEG — CPT 95816) for Seizure & Epilepsy Evaluation
- Electromyography (EMG) & Nerve Conduction Studies (NCS)
- Lumbar Puncture & Cerebrospinal Fluid (CSF) Pressure/Analysis
- Acute Ischemic Stroke NIHSS Assessment & Neuroimaging Review
- CGRP Antagonists & Triptans (Sumatriptan, Rizatriptan) for Migraine
- Antiepileptic Drugs (Levetiracetam, Lamotrigine, Valproate)
- Levodopa/Carbidopa (Parkinson's Disease) & Gabapentin/Pregabalin (Neuropathy)
- Antiplatelet & Secondary Stroke Prevention Regimens
All Registered NUCC Taxonomies & State Licenses
| Taxonomy Code & Plain-English Description | State License & Primary Status |
|---|---|
2084N0600X — Plain English: Board-Certified Neurologist (Brain, Spine, Stroke & Nerve Specialist) | State: CT | License: 83010 | Primary: Yes (Primary) |
273100000X — Epilepsy UnitPlain English: Licensed & Credentialed Hospital Units — Epilepsy Unit | State: CT | License: 83010 | Primary: Secondary |
Medical Billing, RCM & Hospital Credentialing Teams:
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