Dr. Glenn Allison, M.D.
Dr. Glenn Allison is a Internal Medicine Physician provider (Internal Medicine) practicing in Leominster, MA, registered in the NPPES registry with NPI 1497745848 since 2005. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1497745848 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Glenn Allison |
| Credential | M.D. |
| Sex | Male |
| Practice address | 60 HOSPITAL RD, Leominster, MA, 01453 |
| Phone | 9784664169 |
| Fax | 9784664164 |
| Enumeration date | 2005-10-26 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Primary | 81460 | MA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 3155145 | Medicaid | MA | — |
Copy-ready billing details
Provider: Glenn Allison, M.D. NPI: 1497745848 Taxonomy: 207R00000X (Internal Medicine Physician) Address: 60 HOSPITAL RD, Leominster, MA, 01453
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1720083892 | Matthew Masiello | Individual | Pediatrics Physician | Leominster, MA |
| 1558351494 | Guillermo Walters | Individual | Diagnostic Radiology Physician | Leominster, MA |
| 1174513782 | Jan Rockwood | Individual | Emergency Medicine Physician | Leominster, MA |
| 1699765297 | Sham Khalsa | Individual | Emergency Medicine Physician | Leominster, MA |
| 1124018734 | Leewood Lane | Individual | Emergency Medicine Physician | Leominster, MA |
| 1275523946 | Anthony Drappi | Individual | Emergency Medicine Physician | Leominster, MA |
| 1730160169 | David Ammerman | Individual | Family Medicine Physician | Leominster, MA |
| 1730161308 | James Sullivan | Individual | Emergency Medicine Physician | Leominster, MA |
Verify this record
Cross-check NPI 1497745848 against the authoritative CMS record: view Dr. Glenn Allison on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What specialty is Glenn Allison?
Is this the official NPI registry?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.