Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Kirk R Daffner, MD
Neurology Physician in Boston, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922081553
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Registry record
Entity type Individual (Type 1)
Name Dr. Kirk R Daffner
Credential MD
Sex Male
Practice address 221 Longwood Ave, Boston, MA, 02115
Phone (617) 732-8060
Fax (617) 738-9122
Enumeration date Nov 29, 2005
Last updated in NPPES Jul 8, 2007
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 |
|---|---|---|---|
| 3031446 | Medicaid | MA | - |
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
Is NPI 1922081553 active?
Yes, as of the latest NPPES snapshot, NPI 1922081553 is active (record last updated 2007-07-08).
How do I verify Kirk Daffner's NPI record?
Cross-check NPI 1922081553 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.