Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John Todd Jackson, DMD
Endodontics in Merrimack, NH · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801007919
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. John Todd Jackson
Credential DMD
Sex Male
Practice address 382 Daniel Webster Hwy, Merrimack, NH, 03054
Phone (603) 423-0400
Fax (603) 423-0401
Enumeration date May 24, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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
Is NPI 1801007919 active?
Yes, as of the latest NPPES snapshot, NPI 1801007919 is active (record last updated 2007-07-08).
How do I verify John Jackson's NPI record?
Cross-check NPI 1801007919 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
Browse all → William Blackwood Family Medicine Physician · Merrimack, NH NPI 1346226107 Holly Drexler Family Medicine Physician · Merrimack, NH NPI 1790761542 Judith Corbit Family Nurse Practitioner · Merrimack, NH NPI 1275511800 Northeast Endodontic Specialists, PA Endodontics · Merrimack, NH NPI 1760693881 Northstar Endodontic Partners Pllc Dental Clinic/Center · Merrimack, NH NPI 1447559323
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.