Doctor profile · Federal record
Dr. Lynne Ahn, MD
Gastroenterology Physician (CMS: Gastroenterology) · Framingham, MA
- NPI 1144269143
- Accepts Medicare
- 32 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
475 Franklin St Ste 110
Framingham, MA 017026265
(508) 620-9200
fax (508) 620-6483 - Mailing address
-
475 Franklin St, Ste 110
Framingham, MA 017026265
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- January 3, 2019
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Massachusetts #212256
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144269143. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
57
Distinct HCPCS
3
Medicare allowed
$7,156
| HCPCS | Description | Services | Patients | Avg 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 | $6 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 20 | 20 | $163 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 14 | 14 | $268 |
In context: peer comparison
Among 2 peers in Framingham Gastroenterology Physician, average services per provider: 86. This provider delivers 0.7× the peer median.Open Payments
Industry payments received
All-time total
$51
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 2 | $50.52 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
131
Patients
80
Total drug cost
$8,574
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 52 | 52 | $4,154 |
| Pantoprazole Sodium | Generic | 27 | 0 | $542 |
| Omeprazole | Generic | 19 | 11 | $603 |
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 17 | 17 | $3,005 |
| Famotidine | Generic | 16 | 0 | $271 |
Frequently asked questions
What is Dr. Lynne Ahn's medical specialty?
Dr. Lynne Ahn practices Gastroenterology Physician in Framingham, MA.
Where does Dr. Lynne Ahn practice?
Dr. Lynne Ahn practices at 475 Franklin St Ste 110, Framingham, MA 017026265. Office phone: 5086209200.
What is Dr. Lynne Ahn's NPI?
Dr. Lynne Ahn's National Provider Identifier (NPI) is 1144269143, issued by NPPES.
Does Dr. Lynne Ahn accept Medicare assignment?
Yes. Dr. Lynne Ahn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lynne Ahn commonly perform?
Top Medicare-reported procedures in 2023: 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 (HCPCS G0500); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.