DR. JACEK MYSIOR (M.D.) – Gastroenterology Physician, NPI 1811206246
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
24 GASTROENTEROLOGY in AK
Provider Addresses for DR. JACEK MYSIOR (M.D.)
4315 DIPLOMACY DRIVE
ANCHORAGE, AK 99508
Phone: (907) 563-2662
Type: Mailing
4315 DIPLOMACY DR
ANCHORAGE, AK 995085926
Phone: (907) 563-2662
Type: Location
875 ROOSEVELT HWY STE 132
COLCHESTER, VT 054464460
Phone: (802) 864-7483
Fax: (802) 660-4337
Type: Location
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: 2022-01-17
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 |
|---|---|---|---|---|
| I20220117000477 | I | Gastroenterology | VT | 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 |
|---|---|---|---|---|
| 45380 | Biopsy of large bowel using a flexible endoscope | 90 | 90 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 64 | 64 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 43 | 43 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 27 | 27 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 17 | 17 | $0 |
Insurance plans in this area (ZIP 99508)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| G A S T R O E N T E R O L O G Y | VT | |
| Internal Medicine, Gastroenterology | VT | |
| Nurse Practitioner | VT | |
| - | VT | |
| G A S T R O E N T E R O L O G Y | VT | |
| - | VT |
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