WILLIAM X COLL (MD) – Gastroenterology Physician, NPI 1275526469
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
401 GASTROENTEROLOGY in CT
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Provider Addresses for WILLIAM X COLL (MD)
2139, Silas Deane Highway, Rocky Hill, Hartford County, Connecticut, 06067, United States
ROCKY HILL, CT 060672336
Phone: (860) 257-4131
Fax: (860) 257-4519
Type: Mailing
245, Alvord Park Road, Torrington, Litchfield County, Connecticut, 06790, United States
BLDG B
TORRINGTON, CT 067903493
Phone: (860) 496-0455
Fax: (860) 496-2793
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 106 Open Payments records for all available years, with a total value of $1,926.
Total Amount is formed as General ($1,926) + Research ($0) + Ownership ($0) = $1,926.
Last reported payment date: 2024-11-25 • Largest payer in this snapshot: ABBVIE INC. ($445).
Total Amount
$1,926
General + Research + Ownership
Payments
106
Total payment records
General Amount
$1,926
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
2
Ownership records
Last Payment Date
2024-11-25
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2011-05-25
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
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20110525000221 | I | Gastroenterology | CT | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 162 | 162 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 100 | 84 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 76 | 73 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 40 | 40 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 39 | 39 | $0 |
Insurance plans in this area (ZIP 06067)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | CT | |
| Gastroenterology, Internal Medicine | CT | |
| - | NY | |
| Nurse Practitioner | CT | |
| Certified Registered Nurse Anesthetist (Crna) | NY | |
| G A S T R O E N T E R O L O G Y | CT | |
| P A T H O L O G Y | WA | |
| Internal Medicine, Gastroenterology | CT | |
| Physician Assistant | CT | |
| Certified Registered Nurse Anesthetist (Crna) | CT |
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