DR. JOHN CAHILL MD
NPI 1467690271
Psychiatry & Neurology - Psychiatry in New Haven, CT

Active since February 02, 2009PECOS Enrolled
300 GEORGE ST, YALE DEPT OF PSYCHIATRY 9TH FLOOR, NEW HAVEN, CT 06511(203) 785-2095 Get Directions Write a Review

NPPES record last updated: July 16, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. John Cahill Md NPPES

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

DR. JOHN CAHILL MD (NPI 1467690271) is an individual psychiatry provider in New Haven, Connecticut, licensed in Connecticut (048918) and active in the NPI registry since February 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1467690271
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. JOHN CAHILLCredential: MD
Location Address300 GEORGE ST, YALE DEPT OF PSYCHIATRY 9TH FLOORNew Haven, CT 06511
Mailing Address123 York St, 9kNew Haven, CT 06511-5614 · (203) 745-9995
Sole ProprietorNo
Enumeration DateFebruary 2, 2009
Last NPPES UpdateJuly 16, 2019
✔ NPI 1467690271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CT · 048918
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
300 GEORGE ST, New Haven, CT 06511

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Psychiatric Hospital
34 PARK STREET
New Haven, CT 06790
  • Reassigned Medicare billing, Connecticut enrollment
  • 127 clinicians in this Medicare group
Adult Mental Health
109 LEGION AVE
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 12 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 06511 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
$183.10 typical visit price
range $60.82 – $183.10
Typical copayment $45.77 (range $15.20 – $45.77)
Most-billed visit code 99205
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.

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.

Nurse Practitioner (Family)
300 GEORGE ST
NEW HAVEN, CT 06511
Obstetrics & Gynecology
300 GEORGE ST
NEW HAVEN, CT 06511
Psychiatry & Neurology (Psychiatry)
300 GEORGE ST, SUITE 901
NEW HAVEN, CT 06511
Psychologist (Clinical)
300 GEORGE ST
NEW HAVEN, CT 06511
Psychiatry & Neurology (Psychiatry)
300 GEORGE ST, SUITE 901
NEW HAVEN, CT 06511
Psychiatry & Neurology (Psychiatry)
300 GEORGE ST, SUITE 901
NEW HAVEN, CT 06511
Psychiatric Unit
300 GEORGE ST, SUITE 901
NEW HAVEN, CT 06511
Specialist (Research Study)
300 GEORGE ST, SUITE 759
NEW HAVEN, CT 06511

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 John Cahill's NPI number?

The NPI number for John Cahill is 1467690271. It was assigned to this individual provider in the NPPES registry on February 2, 2009.

Where is John Cahill located?

John Cahill practices at 300 George St Yale Dept Of Psychiatry 9th Floor, New Haven, CT 06511. The listed phone number is (203) 785-2095.

What is John Cahill's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is John Cahill enrolled in Medicare?

Yes. John Cahill is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for John Cahill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Cahill reassigns Medicare benefits to 2 organizations: State Of Connecticut (New Haven, CT) and Continuum Of Care, 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 John Cahill'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 John Cahill was last updated on July 16, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.