Thomas Walsh, MD
Thomas Walsh, MD is an Internal Medicine Physician in Shrewsbury, MA, registered under NPI 1750363081.
Getting there
The practice address on file is 604 MAIN ST, Shrewsbury, MA 01545. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 44970 | MA | Internal Medicine Physician primary |
This provider holds licence 44970 issued in MA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Internal Medicine covers
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
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 | 1750363081 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 14, 2005 |
| Last updated | May 26, 2010 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
604 MAIN ST Shrewsbury, MA 01545 (508) 842-0057 Fax (508) 845-6571 |
| Mailing address |
PO BOX 415348 Boston, MA 02241 |
| Other identifiers |
04-00962
· Other 04-3058466 · Other 04/24/72266 · Other 043058466 · Other 043058466 · Other 044970 · Other 110048770 · Other 1583439 · Other 27064 · Other 27064 · Other 4034914 · Other 784245 · Other 9111503 · Other 9900056 · Other AA1252 · Other E33015 · Other E33015 · Other E33015 · Other |
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 | 7 | 5 | 0 | 3 | 6 | 3 | 0 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 1 | 0 | 6 | 6 | 6 | 0 | 7 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.