DR. DONALD J LEONE (M.D.) – Internal Medicine Physician, NPI 1295727782

DR. DONALD J LEONE (M.D.) is a healthcare provider. based in Wilton, Connecticut. specializing in Internal Medicine Physician. They hold the professional credentials M.D.. They hold a License No. 028837 (CT). The NPI Number for DR. DONALD J LEONE (M.D.) is 1295727782

Main info

Male
41 Years Of Experience
Accepts Medicare Assignment
Name
DR. DONALD J LEONE (M.D.)
NPI
1295727782
Phone
(203) 563-9484
Address
82 KENSETT DR
Enumeration Date
19 August 2005
Last Update Date
8 February 2019

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2037623353
Graduation Year
1985 (41 years ago)
PAC ID
6204925381
Group Practice PAC ID
4789597691
Professional Enrollment ID
I20100408000222
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 DR. DONALD J LEONE (M.D.)

  • 82, Kensett Drive, South Wilton, Wilton, Western Connecticut Planning Region, Connecticut, 06897, United States

    WILTON, CT 068974420

    Phone: (203) 563-9484

    Type: Mailing

  • 249, Danbury Road, Wilton, Western Connecticut Planning Region, Connecticut, 06897, United States

    WILTON, CT 06897

    Phone: (203) 762-3353

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $14.

Total Amount is formed as General ($14) + Research ($0) + Ownership ($0) = $14.

Last reported payment date: 2023-04-11 • Largest payer in this snapshot: Amgen Inc. ($14).

Total Amount

$14

General + Research + Ownership

Payments

1

Total payment records

General Amount

$14

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-04-11

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Amgen Inc.$14
View all Open Payments →|Open Payments Risk Radar →

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 06897)

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Provider's Procedures

DR. DONALD J LEONE (M.D.) performs procedures in Internal Medicine Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINECT90670Pneumococcal vaccine for injection into muscle2323

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: 4789597691View full group profile

Reviews

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Frequently asked questions

What is the standard ID for DR. DONALD J LEONE (M.D.) in the U.S.?
In the U.S., DR. DONALD J LEONE (M.D.) is identified by NPI 1295727782.
Is DR. DONALD J LEONE (M.D.)'s NPI status active today?
Active status means DR. DONALD J LEONE (M.D.)'s NPI record is not deactivated in the public file.
How should patients interpret DR. DONALD J LEONE (M.D.)'s specialty?
The extract shows Internal Medicine Physician for DR. DONALD J LEONE (M.D.). Clinical services aligned with this taxonomy classification.
Can patients visit DR. DONALD J LEONE (M.D.) in Wilton, Connecticut?
For routing, start with Wilton, Connecticut for DR. DONALD J LEONE (M.D.), then verify phone and hours locally.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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