Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Jonathan Greene, D.M.D.

Oral and Maxillofacial Surgery (Dentist) in Nashua, NH · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1609880830

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Registry record

Entity type Individual (Type 1)

Name Dr. David Jonathan Greene

Credential D.M.D.

Sex Male

Practice address 39 Simon St, Unit 11-13, Nashua, NH, 03060

Phone (603) 883-4008

Fax (603) 881-3822

Enumeration date Jul 27, 2006

Last updated in NPPES May 7, 2021

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License 2192 (NH) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is David Greene?

David Greene is registered in NPPES with the primary taxonomy of Oral and Maxillofacial Surgery (Dentist). The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-07.