1. Home
  2. Directory
  3. Connecticut
  4. New Haven
  5. Psychiatry Neurology
  6. NPI Profile

DR. LOUISE MARIAN MC CARTHY MB BCH BAO
NPI 1841817012
Psychiatry & Neurology - Clinical Neurophysiology in New Haven, CT

Active since July 02, 2020PECOS EnrolledAccepts Medicare Assignment
20 YORK ST, NEW HAVEN, CT 06510(203) 688-4242 Get Directions Write a Review

NPPES record last updated: June 16, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Louise Marian Mc Carthy Mb Bch Bao NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LOUISE MARIAN MC CARTHY MB BCH BAO (NPI 1841817012) is an individual clinical neurophysiology provider in New Haven, Connecticut, licensed in Connecticut (83010) and active in the NPI registry since July 2020. She is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1841817012
Entity TypeIndividualFemale
Primary Taxonomy2084N0600X
Provider Legal NameDR. LOUISE MARIAN MC CARTHYCredential: MB BCH BAO
Location Address20 YORK STNew Haven, CT 06510-3220
Mailing Address20 York StNew Haven, CT 06510-3220
Phone(203) 688-4242
Sole ProprietorYes
Medical School CMSOtherGraduated 2017
Enumeration DateJuly 2, 2020
Last NPPES UpdateJune 16, 2026
NPPES CertifiedJune 16, 2026
✔ NPI 1841817012 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Clinical NeurophysiologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0600X
License✔ Licensed in CT · 83010
Definition
Clinical Neurophysiology is a subspecialty with psychiatric or neurologic expertise in the diagnosis and management of central, peripheral, and autonomic nervous system disorders using combined clinical evaluation and electrophysiologic testing such as electroencephalography (EEG), electromyography (EMG), and nerve conduction studies (NCS).
Also ListedEpilepsy UnitTaxonomy 273100000X · License 83010 (CT)
20 YORK ST, New Haven, CT 06510
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Louise Marian Mc Carthy Mb Bch Bao is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123586989
PECOS Enrollment IDI20260821001741
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Louise Mc Carthy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Yale University
0.4 mi
Advanced Practice Midwife
100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 3,728 clinicians in this Medicare group
NPI 1124148887 (203) 737-5432

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AUDREY P SENIOR APRN
Nurse Practitioner (Family)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-5860
DR. YEISID F FIGUEREDO M.D.
Pediatrics (Neonatal-Perinatal Medicine)
20 YORK ST, DEPT OF NEONATOLOGY
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2320
YALE NEW HAVEN HOSPITAL
Durable Medical Equipment & Medical Supplies (Customized Equipment)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2046
TAYLOR KINGSTON
Dietitian, Registered
20 YORK ST, FOOD AND NUTRITION EPB806
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-9185
DR. TRAVIS DANIEL BONTRAGER MD
Hospitalist
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-1734
TERESA JOSEPH D.O.
Internal Medicine (Nephrology)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 737-8894
MR. BRAD ST. MARTIN MD
Obstetrics & Gynecology
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
BERNADETTE BIMONTE-HACKETT LCSW
Social Worker (Clinical)
20 YORK ST, SOCIAL WORK EP10-635
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-5161

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Louise Mc Carthy's NPI number?

The NPI number for Louise Mc Carthy is 1841817012. It was assigned to this individual provider in the NPPES registry on July 2, 2020.

Where is Louise Mc Carthy located?

Louise Mc Carthy practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-4242.

What is Louise Mc Carthy's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Clinical Neurophysiology, with taxonomy code 2084N0600X.

Is Louise Mc Carthy enrolled in Medicare?

Yes. Louise Mc Carthy is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Louise Mc Carthy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louise Mc Carthy reassigns Medicare benefits to Yale University (New Haven, CT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Louise Mc Carthy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Louise Mc Carthy affiliated with any hospitals?

According to CMS data, Louise Mc Carthy is affiliated with Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Louise Mc Carthy was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.