KATHLEEN MARY MCMAHON-BROWN MSN, APRN
NPI 1679199095
Nurse Practitioner - Family in New Haven, CT

Active since June 22, 2020PECOS EnrolledAccepts Medicare Assignment
93.27/100
CMS Quality Rating
400 COLUMBUS AVE, NEW HAVEN, CT 06519(203) 503-3581 Get Directions Write a Review

NPPES record last updated: June 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Kathleen Mary Mcmahon-brown Msn, Aprn NPPES

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

KATHLEEN MARY MCMAHON-BROWN MSN, APRN (NPI 1679199095) is an individual family provider in New Haven, Connecticut, licensed in Connecticut (8801) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1679199095
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKATHLEEN MARY MCMAHON-BROWNCredential: MSN, APRN
Location Address400 COLUMBUS AVENew Haven, CT 06519-1233
Mailing Address25 Lomartra LnBranford, CT 06405-6147 · (203) 836-4971
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJune 22, 2020
NPPES CertifiedJune 22, 2020
✔ NPI 1679199095 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CT · 8801
400 COLUMBUS AVE, New Haven, CT 06519

Accepted Insurance

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

Kathleen Mary Mcmahon-brown Msn, Aprn 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 ID42635906
PECOS Enrollment IDI20200810001268
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 Reassignments

2

Medicare enrollment records show Kathleen Mcmahon-brown reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Federally Qualified Health Center (FQHC)
400-428 COLUMBUS AVENUE
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 468 clinicians in this Medicare group
Geriatric Medicine
874 HOWARD AVE
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • Medicare enrollment name: Northeast Medical Group Inc
  • 1,824 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06519 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$93.86 typical visit price
range $60.82 – $183.10
Typical copayment $23.46 (range $15.20 – $45.77)
Most-billed visit code 99203
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.27/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality81.72
Promoting Interoperability78.03
Improvement Activities40

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.

Counselor
400 COLUMBUS AVE
NEW HAVEN, CT 06519
Social Worker
400 COLUMBUS AVE
NEW HAVEN, CT 06519
Social Worker
400 COLUMBUS AVE
NEW HAVEN, CT 06519
Counselor (Professional)
400 COLUMBUS AVE
NEW HAVEN, CT 06519
Social Worker
400 COLUMBUS AVE
NEW HAVEN, CT 06519
Social Worker (Clinical)
400 COLUMBUS AVE
NEW HAVEN, CT 06519
Dentist (General Practice)
400 COLUMBUS AVE
NEW HAVEN, CT 06519
Counselor (Professional)
400 COLUMBUS AVE, ADULT PSYCHIATRIC CLINIC
NEW HAVEN, CT 06519

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 Kathleen Mcmahon-brown's NPI number?

The NPI number for Kathleen Mcmahon-brown is 1679199095. It was assigned to this individual provider in the NPPES registry on June 22, 2020.

Where is Kathleen Mcmahon-brown located?

Kathleen Mcmahon-brown practices at 400 Columbus Ave, New Haven, CT 06519. The listed phone number is (203) 503-3581.

What is Kathleen Mcmahon-brown's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Kathleen Mcmahon-brown enrolled in Medicare?

Yes. Kathleen Mcmahon-brown 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 organizations bill Medicare for Kathleen Mcmahon-brown's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Mcmahon-brown reassigns Medicare benefits to 2 organizations: Cornell Scott Hill Health Corporation (New Haven, CT) and Mill Hill Medical Consultants Inc (New Haven, CT). Each 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 Kathleen Mcmahon-brown's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kathleen Mcmahon-brown accept?

Health plans from Anthem Blue Cross and Blue Shield list Kathleen Mcmahon-brown as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Kathleen Mcmahon-brown was last updated on June 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.