LYNNE B AHN (MD) – Gastroenterology Physician, NPI 1144269143
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
829 GASTROENTEROLOGY in MA
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Provider Addresses for LYNNE B AHN (MD)
475, Franklin Street, Framingham, Middlesex County, Massachusetts, 01702, United States
STE 110
FRAMINGHAM, MA 017026265
Phone: (508) 894-0400
Fax: (508) 894-0617
Type: Mailing
110, Franklin Street, Framingham, Middlesex County, Massachusetts, 01702, United States
FRAMINGHAM, MA 017026265
Phone: (508) 620-9200
Fax: (508) 620-6483
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $83.
Total Amount is formed as General ($83) + Research ($0) + Ownership ($0) = $83.
Last reported payment date: 2024-07-22 • Largest payer in this snapshot: ABBVIE INC. ($83).
Total Amount
$83
General + Research + Ownership
Payments
4
Total payment records
General Amount
$83
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $83 |
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: 2006-12-20
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 |
|---|---|---|---|---|
| I20061220000456 | I | Gastroenterology | MA | 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 |
|---|---|---|---|---|
| G0500 | Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 23 | 23 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 20 | 20 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 14 | 14 | $0 |
Insurance plans in this area (ZIP 01702)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| - | MA | |
| Emergency Medicine | NC |
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