DR. DONALD F CALLAHAN DDS
NPI 1952431652
Dentist - General Practice in Mendham, NJ

Q: What is Donald Callahan's NPI number?

The NPI number for Donald Callahan is 1952431652. It was assigned to this individual provider in the NPPES registry on March 6, 2007.

Q: What is Donald Callahan's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for Donald Callahan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 06, 2007

2 KNOLLWOOD TRAIL, MENDHAM, NJ 07945(973) 543-7757(973) 543-1993 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Donald F Callahan Dds NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DONALD F CALLAHAN DDS (NPI 1952431652) is an individual general practice provider in Mendham, New Jersey, licensed in New Jersey (7275) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1952431652

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. DONALD F CALLAHANCredential: DDS

Location Address2 KNOLLWOOD TRAILMendham, NJ 07945

Mailing Address2 Knollwood TrailMendham, NJ 07945 · (973) 543-7757 · Fax (973) 543-1993

Phone(973) 543-7757

Fax(973) 543-1993

Sole ProprietorYes

Enumeration DateMarch 6, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1952431652 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in NJ · 7275

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

2 KNOLLWOOD TRAIL, Mendham, NJ 07945

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Donald Callahan's NPI number?

The NPI number for Donald Callahan is 1952431652. It was assigned to this individual provider in the NPPES registry on March 6, 2007.

Where is Donald Callahan located?

Donald Callahan practices at 2 Knollwood Trail, Mendham, NJ 07945. The listed phone number is (973) 543-7757.

What is Donald Callahan's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Donald Callahan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.