JOHN T FAHEY (MD) – Pediatric Cardiology Physician, NPI 1851374086

JOHN T FAHEY (MD) is a healthcare provider. based in New haven, Connecticut. specializing in Pediatric Cardiology Physician. They hold the professional credentials MD. They hold a License No. 024404 (CT). The NPI Number for JOHN T FAHEY (MD) is 1851374086

Main info

Male
47 Years Of Experience
Accepts Medicare Assignment
Name
JOHN T FAHEY (MD)
NPI
1851374086
Phone
Not provided
Address
PO BOX 9805
Enumeration Date
22 November 2005
Last Update Date
1 July 2008

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2037854081
Graduation Year
1979 (47 years ago)
PAC ID
9638204951
Group Practice PAC ID
9436061736
Professional Enrollment ID
I20100311000838
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for JOHN T FAHEY (MD)

  • 9805, Northwest Ash Street, West Haven, Portland, Metro, Washington County, Oregon, 97229, United States

    300 GEORGE STREET 6TH FLOOR

    NEW HAVEN, CT 065360805

    Phone:

    Type: Mailing

  • Yale New Haven Hospital, 20, York Street, Downtown, New Haven, New Haven County, Connecticut, 06510, United States

    YNHH (CHILDREN'S) WEST PAVILION 2ND FLOOR

    NEW HAVEN, CT 065103220

    Phone: (203) 785-4081

    Fax: (203) 737-2786

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2010-03-11

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20100311000838IPediatric MedicineCTTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 06536)

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Provider's Procedures

JOHN T FAHEY (MD) performs procedures in Pediatric Cardiology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PEDIATRIC MEDICINECT93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report2825

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9436061736View full group profile
NameSpecialtyState
Interventional Cardiology, Cardiovascular Disease (Cardiology)CT
H E M A T O L O G Y/ O N C O L O G YCT
Internal Medicine, NephrologySC
-CT
-NC
Internal MedicineCT
-CT
Cardiac SurgeryCT
-CT
-CT

Reviews

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Frequently asked questions

How is JOHN T FAHEY (MD) identified in CMS data?
CMS-hosted NPPES data lists JOHN T FAHEY (MD) with NPI 1851374086.
Does CMS list JOHN T FAHEY (MD) as active?
Yes — JOHN T FAHEY (MD) is active in the NPI listing used on this page.
What taxonomy line describes JOHN T FAHEY (MD)?
For research purposes, treat JOHN T FAHEY (MD) as Pediatric Cardiology Physician in this dataset. Clinical services aligned with this taxonomy classification.
Where should I expect JOHN T FAHEY (MD) on a map?
Expect New Haven, Connecticut as a primary anchor for JOHN T FAHEY (MD) unless the record lists multiple sites.
Why does JOHN T FAHEY (MD) have multiple addresses?
2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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