THOMAS SUNJIN JUNG (MD) – Gastroenterology Physician, NPI 1285875484
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 THOMAS SUNJIN JUNG (MD)
333, Cedar Street, Downtown, New Haven, New Haven County, Connecticut, 06519, United States
LMP 1080
NEW HAVEN, CT 06520
Phone: (203) 785-4138
Type: Mailing
The Crown Towers, 129, York Street, Downtown, New Haven, New Haven County, Connecticut, 06520, United States
3H
NEW HAVEN, CT 065115608
Phone: (203) 785-4138
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 233 Open Payments records for all available years, with a total value of $4,462.
Total Amount is formed as General ($4,462) + Research ($0) + Ownership ($0) = $4,462.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: ABBVIE INC. ($992).
Total Amount
$4,462
General + Research + Ownership
Payments
233
Total payment records
General Amount
$4,462
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $992 |
| IRONWOOD PHARMACEUTICALS, INC | $478 |
| Takeda Pharmaceuticals U.S.A., Inc. | $442 |
| Ardelyx, Inc. | $396 |
| Gilead Sciences, Inc. | $323 |
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: 2009-08-21
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 |
|---|---|---|---|---|
| I20090821000522 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 207 | 123 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 62 | 62 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 42 | 41 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 33 | 33 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 32 | 32 | $0 |
Insurance plans in this area (ZIP 06520)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | CT | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 21 | 19 |
| GASTROENTEROLOGY | CT | 45378 | Diagnostic examination of large bowel using an endoscope | 11 | 11 |
| GASTROENTEROLOGY | CT | 45385 | Removal of polyps or growths of large bowel using an endoscope | 26 | 26 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CT | |
| Gastroenterology, Internal Medicine | CT | |
| Certified Registered Nurse Anesthetist (Crna) | CT | |
| A N E S T H E S I O L O G Y | MA | |
| A N E S T H E S I O L O G Y | CT | |
| Gastroenterology, Internal Medicine | CT | |
| A N E S T H E S I O L O G Y | CT |
Reviews
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