Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ali Maddahi, D.M.D.

Q: What is the NPI number for Ali Maddahi?

The National Provider Identifier (NPI) for Ali Maddahi is 1942223243, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Amherst, MA · enumerated 2006.

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

National Provider Identifier

1942223243

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Registry record

Entity type Individual (Type 1)

Name Ali Maddahi

Credential D.M.D.

Sex Male

Practice address 10 Rolling Green Dr, Amherst, MA, 01002

Phone (978) 660-5711

Fax (978) 665-5808

Enumeration date Jul 26, 2006

Last updated in NPPES Dec 23, 2013

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DN20424 (MA) 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

Where does Ali Maddahi practice?

The practice location on file with NPPES is in Amherst, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Ali Maddahi?

The National Provider Identifier (NPI) for Ali Maddahi is 1942223243, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-23.