Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Samuel Richard Gordon Finlayson, MD, MPH
Surgery Physician in Boston, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275552424
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Registry record
Entity type Individual (Type 1)
Name Dr. Samuel Richard Gordon Finlayson
Credential MD, MPH
Sex Male
Practice address 1620 Tremont St, 4th Floor, Boston, MA, 02120
Phone (617) 525-7300
Fax (617) 525-7723
Enumeration date Jul 19, 2006
Last updated in NPPES Oct 7, 2021
Taxonomy & licenses
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 |
|---|---|---|---|
| 30200836 | Medicaid | NH | - |
| 0RE4415 | Medicaid | VT | - |
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.
Frequently asked questions
How do I verify Samuel Finlayson's NPI record?
Cross-check NPI 1275552424 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1275552424 active?
Yes, as of the latest NPPES snapshot, NPI 1275552424 is active (record last updated 2021-10-07).
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-07.