Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Konstantine Skyler Karatzas, MD, LAC
Counselor in Woodbury, NJ · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891507976
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Registry record
Entity type Individual (Type 1)
Name Konstantine Skyler Karatzas
Credential MD, LAC
Sex Male
Practice address 131 Delaware St, Woodbury, NJ, 08096
Phone (856) 693-5775
Enumeration date Jan 24, 2025
Last updated in NPPES Jan 24, 2025
Taxonomy & licenses
101Y00000X Counselor Behavioral Health & Social Service Providers · License 37AC00847800 (NJ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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 Konstantine Karatzas's NPI record?
Cross-check NPI 1891507976 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1891507976 active?
Yes, as of the latest NPPES snapshot, NPI 1891507976 is active (record last updated 2025-01-24).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-24.