Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Daniel Karlson
Registered Nurse in Brentwood, NY · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1245720119
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Registry record
Entity type Individual (Type 1)
Name Daniel Karlson
Sex Male
Practice address 998 Crooked Hill Rd, Brentwood, NY, 11717
Phone (631) 761-3500
Enumeration date May 15, 2018
Last updated in NPPES May 15, 2018
Taxonomy & licenses
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Daniel Karlson?
Daniel Karlson is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Herminia Hermogenes Psychiatry Physician · West Brentwood, NY NPI 1891721916 Jennifer Senft-Maltese Clinical Social Worker · W Brentwood, NY NPI 1437172178 Suffolk County Dept of Health Services Case Management Agency · Brentwood, NY NPI 1699877811 Alicekutty John Psychiatry Physician · W Brentwood, NY NPI 1346321874 Jyothi Thomas Neurology Physician · West Brentwood, NY NPI 1457433518 Nicoleta Camelia Bodea- Crisan Neurology Physician · W Brentwood, NY NPI 1689756025 Gita Desikan Neurology Physician · W Brentwood, NY NPI 1225110455 Juniper Coley-Green Case Manager/Care Coordinator · Brentwood, NY NPI 1053483073
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-15.