Dr. Jonathan Adam Liegner, DMD
Dr. Jonathan Adam Liegner is a Dentist provider (Dentist) practicing in Hackettstown, NJ, registered in the NPPES registry with NPI 1649321019 since 2007. The credential DMD stands for Doctor of Medicine in Dentistry.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1649321019 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Jonathan Adam Liegner |
| Credential | DMD |
| Sex | Male |
| Practice address | Hackettstown, NJ, 07840 |
| Phone | 9088509292 |
| Enumeration date | 2007-01-14 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 122300000X | Dentist | Primary | DI16529NJ | NJ |
DMD — Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential
Copy-ready billing details
Provider: Jonathan Liegner, DMD NPI: 1649321019 Taxonomy: 122300000X (Dentist) Address: Hackettstown, NJ, 07840
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1861415150 | Gary Vander Vliet | Individual | General Practice Dentistry | Hackettstown, NJ |
| 1205842283 | Jennifer Gilbert | Individual | Clinical Social Worker | Hackettstown, NJ |
| 1790792018 | Heather Schorr Kourpas | Individual | Clinical Social Worker | Hackettstown, NJ |
| 1558432658 | Mary Winzinger | Individual | Psychologist | Hackettstown, NJ |
| 1730389651 | Edward Orenstein | Individual | Orthodontics and Dentofacial Orthopedics Dentistry | Hackettstown, NJ |
| 1801112529 | Dana De Kleine | Individual | Professional Counselor | Hackettstown, NJ |
| 1265734719 | Gia Groeling | Individual | Clinical Social Worker | Hackettstown, NJ |
| 1063765808 | Yelena Goldin Frazier | Individual | Clinical Neuropsychologist | Hackettstown, NJ |
Verify this record
Cross-check NPI 1649321019 against the authoritative CMS record: view Dr. Jonathan Adam Liegner on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
Is NPI 1649321019 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.