Michael Winter, MD
Michael Winter, MD is a Gastroenterology Physician in Lebanon, NH, registered under NPI 1003172180.
Getting there
Here is what surrounds this office in Lebanon, based on OpenStreetMap data collected Sep 9, 2026. Parking is available about 0.24 mi away. The nearest transit stop is 0.38 mi away, served by Lot 9 - Stop 1. A pharmacy sits 0.48 mi from the entrance (Dartmouth-Hitchcock Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 852 ft ~4 min
Transit Go Go Mart 0.21 mi ~5 min
Gas station Irving 0.21 mi ~5 min
220 Lebanon Street, Hanover 03755
Mo-Fr 05:30-22:00; Sa-Su 06:00-21:00
Convenience Jolley 0.22 mi ~5 min
Parking 0.23 mi ~5 min
Parking 0.24 mi ~5 min
Restaurant Jesse's Steaks, Seafood & Tavern 0.29 mi ~6 min
7 Blue Sky Drive, Hanover 03755
Mo-Sa 11:30-21:30; Su 10:00-21:30
Transit Lot 9 - Stop 4 0.37 mi ~8 min
Transit Lot 9 - Stop 1 0.38 mi ~8 min
Restaurant Au Bon Pain 0.43 mi ~9 min
1 Medical Center Drive, Lebanon 03756
Mo-Th 06:00-21:00; Fr 06:00-20:00; Sa,Su 08:00-15:00
Restaurant Sbarro 0.43 mi ~9 min
1 Medical Center Drive, Lebanon 03756
Mo-Fr 10:00-19:00; Sa 10:00-15:00
Pharmacy Dartmouth-Hitchcock Pharmacy 0.48 mi ~10 min
1 Medical Center Drive, Lebanon 03756
Mo-Fr 07:00-19:00; Sa 08:00-16:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 19677 | NH | Gastroenterology Physician primary |
This provider holds licence 19677 issued in NH. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 8729375381
Enrolled in Medicare 3 times, across 3 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Massachusetts | I20170714002243 | Practitioner - Internal Medicine |
| New Hampshire | I20190522002436 | Practitioner - Gastroenterology |
| Vermont | I20210309002667 | Practitioner - Gastroenterology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. There are 3 separate enrolment records across 3 states (MA, NH, VT). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Gastroenterology covers
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. NUCC Health Care Provider Taxonomy, code 207RG0100X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003172180 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 3, 2012 |
| Last updated | Sep 5, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
ONE MEDICAL CENTER DRIVE GASTROENTEROLOGY Lebanon, NH 03756 (603) 650-5261 |
| Other identifiers |
3117400
· Medicaid (NH) 6700987 · Medicaid (VT) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 7 | 2 | 1 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 7 | 4 | 1 | 7 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.