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JOSEPH J BRENNAN JR. MD
NPI 1528057304
Internal Medicine - Cardiovascular Disease in Branford, CT

Active since October 14, 2005PECOS Enrolled
11 HARRISON AVE, BRANFORD, CT 06405(203) 483-8300(203) 483-8314 Get Directions Write a Review

NPPES record last updated: August 4, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Joseph J Brennan Jr. Md NPPES

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

JOSEPH J BRENNAN JR. MD (NPI 1528057304) is an individual cardiovascular disease provider in Branford, Connecticut, licensed in Connecticut (027323) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1528057304
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameJOSEPH J BRENNAN JR.Credential: MD
Location Address11 HARRISON AVEBranford, CT 06405-3607
Mailing AddressPo Box 9805New Haven, CT 06536-0805
Phone(203) 483-8300
Fax(203) 483-8314
Sole ProprietorNo
Enumeration DateOctober 14, 2005
Last NPPES UpdateAugust 4, 2008
✔ NPI 1528057304 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in CT · 027323
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
11 HARRISON AVE, Branford, CT 06405
Open in Google Maps ↗

Other Identifiers 3

Medicaid001273234CT
Medicare UPINB39585
Medicare ID-Type Unspecified110003550CT

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joseph J Brennan Jr. Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Joseph Brennan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yale University
6.3 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
Mill Hill Medical Consultants Inc
6.6 mi
Hospitalist
20 YORK ST, CB 2041
New Haven, CT 06510
  • Reassigned Medicare billing, Connecticut enrollment
  • Medicare enrollment name: Northeast Medical Group Inc
  • 1,824 clinicians in this Medicare group
NPI 1952624769 (203) 688-4741

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 06405 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier11 claims11 services$34.08 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 6

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

MICHAEL W CLEMAN MD
Internal Medicine (Cardiovascular Disease)
11 HARRISON AVE
BRANFORD, CT 06405
South Central Connecticut Planning Region (203) 483-3000
CHRISTOPHER J HOWES MD
Internal Medicine (Cardiovascular Disease)
11 HARRISON AVE
BRANFORD, CT 06405
South Central Connecticut Planning Region (203) 483-8300
FRANK JOHN GIORDANO MD
Internal Medicine (Cardiovascular Disease)
11 HARRISON AVE
BRANFORD, CT 06405
South Central Connecticut Planning Region (203) 483-8300
HENRY S CABIN MD
Internal Medicine (Cardiovascular Disease)
11 HARRISON AVE
BRANFORD, CT 06405
South Central Connecticut Planning Region (203) 483-8300
JOHN F SETARO MD
Internal Medicine (Cardiovascular Disease)
11 HARRISON AVE
BRANFORD, CT 06405
South Central Connecticut Planning Region (203) 483-8300
CLAUDIA V SEPOT APRN
Nurse Practitioner (Adult Health)
11 HARRISON AVE
BRANFORD, CT 06405
South Central Connecticut Planning Region (203) 483-8300

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 Joseph Brennan's NPI number?

The NPI number for Joseph Brennan is 1528057304. It was assigned to this individual provider in the NPPES registry on October 14, 2005.

Where is Joseph Brennan located?

Joseph Brennan practices at 11 Harrison Ave, Branford, CT 06405. The listed phone number is (203) 483-8300.

What is Joseph Brennan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Joseph Brennan enrolled in Medicare?

Yes. Joseph Brennan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Joseph Brennan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Brennan reassigns Medicare benefits to 2 organizations: Yale University (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 Joseph Brennan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joseph Brennan was last updated on August 4, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.