1. Home
  2. Directory
  3. Vermont
  4. Burlington
  5. Pediatrics
  6. NPI Profile

DR. KAREN S. LEONARD M.D.
NPI 1417954322
Pediatrics in Burlington, VT

Active since July 07, 2005PECOS Enrolled
111 COLCHESTER AVE, 265SM5, BURLINGTON, VT 05401(802) 847-5321(802) 847-8064 Get Directions Write a Review

NPPES record last updated: October 20, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Karen S. Leonard M.d. NPPES

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

DR. KAREN S. LEONARD M.D. (NPI 1417954322) is an individual pediatrics provider in Burlington, Vermont, licensed in Vermont (042-0010554) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1417954322
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. KAREN S. LEONARDCredential: M.D.
Location Address111 COLCHESTER AVE, 265SM5Burlington, VT 05401-1473
Mailing Address111 Colchester Ave, 265sm5Burlington, VT 05401-1473 · (802) 847-5321 · Fax (802) 847-8064
Phone(802) 847-5321
Fax(802) 847-8064
Sole ProprietorNo
Enumeration DateJuly 7, 2005
Last NPPES UpdateOctober 20, 2025
NPPES CertifiedOctober 20, 2025
✔ NPI 1417954322 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in VT · 042-0010554✔ Licensed in NY · 287739
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedHospitalistTaxonomy 208M00000X · License 042.0010554 (VT), 287739 (NY)
111 COLCHESTER AVE, Burlington, VT 05401
Open in Google Maps ↗

Other Identifiers 4

Medicaid1009554VT
Other00068258VT · Bluecrossblueshield
Other4142325Mvp Healthcare
Other9639268Cigna

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Karen S. Leonard M.d. 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 Karen Leonard reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Vermont Medical Center Inc
0.1 mi
Internal Medicine
111 COLCHESTER AVE
Burlington, VT 05401
  • Reassigned Medicare billing, Vermont enrollment
  • 1,643 clinicians in this Medicare group
NPI 1659309615 (802) 847-0000
Champlain Valley Physicians Hospital Medical Center
21 mi
General Acute Care Hospital
75 BEEKMAN ST
Plattsburgh, NY 12901
  • Reassigned Medicare billing, New York enrollment
  • 675 clinicians in this Medicare group
NPI 1033270699 (518) 561-2000

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 05401 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
$85.89 typical visit price
range $55.80 – $168.48
Typical copayment $21.47 (range $13.95 – $42.12)
Most-billed visit code 99203
Established Patient
$98.40 typical visit price
range $18.08 – $137.84
Typical copayment $24.60 (range $4.52 – $34.46)
Most-billed visit code 99214
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.

ELENA KOZAKEWICH
Internal Medicine (Pulmonary Disease)
111 COLCHESTER AVE, UVM MEDICAL CENTER, DEPT OF INTERNAL MEDICINE, 222WP2
BURLINGTON, VT 05401
Chittenden County (802) 847-2700
RICHARD BOHLING CAROZZA MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
111 COLCHESTER AVE
BURLINGTON, VT 05401
Chittenden County (802) 847-4589
ANDREW HUY NGUYEN MD
Radiology (Diagnostic Radiology)
111 COLCHESTER AVE
BURLINGTON, VT 05401
Chittenden County (802) 847-0000
DR. KELLY CURTIS BLANCHET MD
Pediatrics
111 COLCHESTER AVE
BURLINGTON, VT 05401
Chittenden County (802) 847-2345
LINDSAY ANNE CALDARONE MD
Student in an Organized Health Care Education/Training Program
111 COLCHESTER AVE
BURLINGTON, VT 05401
Chittenden County (802) 847-2345
SHAWN LANSING
Student in an Organized Health Care Education/Training Program
111 COLCHESTER AVE
BURLINGTON, VT 05401
Chittenden County (802) 847-2345
HANNA S LOVING PHD
Pathology (Clinical Laboratory Director, Non-physician)
111 COLCHESTER AVE
BURLINGTON, VT 05401
Chittenden County (802) 847-5121
KAITLYN MARIE DILLON DNP, APRN, FNP-C
Nurse Practitioner
111 COLCHESTER AVE
BURLINGTON, VT 05401
Chittenden County (802) 847-0000

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 Karen Leonard's NPI number?

The NPI number for Karen Leonard is 1417954322. It was assigned to this individual provider in the NPPES registry on July 7, 2005.

Where is Karen Leonard located?

Karen Leonard practices at 111 Colchester Ave 265sm5, Burlington, VT 05401. The listed phone number is (802) 847-5321.

What is Karen Leonard's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Karen Leonard enrolled in Medicare?

Yes. Karen Leonard is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Karen Leonard's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Leonard reassigns Medicare benefits to 2 organizations: University Of Vermont Medical Center Inc (Burlington, VT) and Champlain Valley Physicians Hospital Medical Center (Plattsburgh, NY). 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 Karen Leonard'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 Karen Leonard was last updated on October 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.