LIAM G. GANNON (MD) – Family Medicine Physician, NPI 1780648691
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
169 EMERGENCY MEDICINE in VT
Provider Addresses for LIAM G. GANNON (MD)
100A MACDONOUGH DR
VERGENNES, VT 054911057
Phone: (802) 877-0157
Type: Mailing
Copley Hospital, 528, Washington Highway, Morrisville, Morristown, Lamoille County, Vermont, 05661, United States
MORRISVILLE, VT 056618973
Phone: (802) 888-4231
Fax: (802) 888-8203
Type: Mailing
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: 2025-05-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 4 Medicare enrollment records; no due dates published yet.
Enrollment records
4
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050722000440 | I | Hospitalist | VT | TBD |
| I20241016003158 | I | Family Practice | NE | TBD |
| I20250305003934 | I | Family Practice | ND | TBD |
| I20250509002402 | I | Emergency Medicine | IL | TBD |
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.
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 05491)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | MO | |
| Family Practice | FL | |
| Family Practice | CA | |
| Family Practice | PA | |
| Family Practice | GA | |
| Family Practice | AZ | |
| Family Practice | MN | |
| Emergency Medicine | GA | |
| Family Practice | CA | |
| Family Practice | MO |
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