Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark W Fagan, DDS
Prosthodontics in Fort Drum, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588612790
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark W Fagan
Credential DDS
Sex Male
Practice address 10205 N Riva Ridge Loop, Fort Drum, NY, 13602
Phone (315) 772-5088
Enumeration date May 4, 2006
Last updated in NPPES Apr 27, 2026
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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 Mark Fagan's NPI record?
Cross-check NPI 1588612790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1588612790 active?
Yes, as of the latest NPPES snapshot, NPI 1588612790 is active (record last updated 2026-04-27).
Other providers at this practice address
Browse all → Elizabeth Duling Dentist · Ft. Drum, NY NPI 1992796981 Guthrie Ahc Military/U.S. Coast Guard Outpatient Clinic/Center · Fort Drum, NY NPI 1164637112 Guthrie Ahc Military/U.S. Coast Guard Outpatient Clinic/Center · Fort Drum, NY NPI 1093920811 Guthrie Ahc Military/U.S. Coast Guard Outpatient Clinic/Center · Fort Drum, NY NPI 1457556136 Jessica Southeard Dental Hygienist · Fort Drum, NY NPI 1851650287
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-27.