WILLIAM HARLEY (M.D.) – Diagnostic Radiology Physician, NPI 1689620569

WILLIAM HARLEY (M.D.) is a healthcare provider. based in Old greenwich, Connecticut. specializing in Diagnostic Radiology Physician. They hold the professional credentials M.D.. They hold a License No. 21902 (CT). The NPI Number for WILLIAM HARLEY (M.D.) is 1689620569

Main info

Male
Name
WILLIAM HARLEY (M.D.)
NPI
1689620569
Phone
(203) 637-1656
Address
7 W CROSSWAY
Enumeration Date
25 May 2006
Last Update Date
8 July 2007
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

Loading map...

Provider Addresses for WILLIAM HARLEY (M.D.)

  • 7, West Crossway, Old Greenwich, Greenwich, Western Connecticut Planning Region, Connecticut, 06870, United States

    OLD GREENWICH, CT 068702431

    Phone: (203) 637-1656

    Type: Mailing

  • 6, Shelburne Road, Stamford, Western Connecticut Planning Region, Connecticut, 06902, United States

    STAMFORD, CT 069023628

    Phone: (203) 359-0130

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

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.

No Medicare enrollment or revalidation data available for this provider in our database.

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 06870)

Loading plans...

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What is the registry number for WILLIAM HARLEY (M.D.)?
The registry entry for WILLIAM HARLEY (M.D.) shows NPI 1689620569.
Should I treat WILLIAM HARLEY (M.D.) as an active provider?
Patients and plans typically see WILLIAM HARLEY (M.D.) as active in the national extract.
What does the directory say WILLIAM HARLEY (M.D.) does?
Insurance directories may phrase it differently, but here WILLIAM HARLEY (M.D.) maps to Diagnostic Radiology Physician. Clinical services aligned with this taxonomy classification.
What city is tied to WILLIAM HARLEY (M.D.)?
The directory associates WILLIAM HARLEY (M.D.) with Old Greenwich, Connecticut. Check all listed addresses for suites or satellite offices.
Can I export WILLIAM HARLEY (M.D.)'s record?
You can download the official NPPES record; we summarize key fields for readability.

Similar Providers

University Physicians

General Practice Physician
University of Connecticut Health Center, 263, Farmington Avenue, Farmington, Hartford County, Connecticut, 06030, United States
NPI: 1720083769

PAUL A. AIELLO (M.D.)

Diagnostic Radiology Physician
Main Street, Bridgeport, Fairfield County, Connecticut, 06604, United States
NPI: 1366447302

CLIFFORD YANG (MD)

Diagnostic Radiology Physician
University of Connecticut Health Center, 263, Farmington Avenue, Farmington, Hartford County, Connecticut, 06030, United States
NPI: 1295730976

AJAY DALAL (M.D.)

Diagnostic Radiology Physician
12, Case Street, Norwichtown, Norwich, New London County, Connecticut, 06360, United States
NPI: 1093710782

DR. ABNER S GERSHON (M.D.)

Diagnostic Radiology Physician
19 BUCKINGHAM LN
NPI: 1114922812

Unknown Individual

Diagnostic Radiology Physician
65, Kane Street, West Hartford, Hartford County, Connecticut, 06119, United States
NPI: 1740285592