DR. ROBERT J CALLAHAN DDS
NPI 1730232042
Dentist - General Practice in Johnstown, PA

Q: What is Robert Callahan's NPI number?

The NPI number for Robert Callahan is 1730232042. It was assigned to this individual provider in the NPPES registry on January 19, 2007.

Q: What is Robert 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 Robert 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 January 19, 2007

100 MAIN ST, JOHNSTOWN, PA 15901(814) 535-8363(814) 535-8364 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Robert J Callahan Dds NPPES

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

DR. ROBERT J CALLAHAN DDS (NPI 1730232042) is an individual general practice provider in Johnstown, Pennsylvania, licensed in Pennsylvania (DS017052L) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1730232042

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. ROBERT J CALLAHANCredential: DDS

Location Address100 MAIN STJohnstown, PA 15901

Mailing Address100 Main StJohnstown, PA 15901 · (814) 535-8363 · Fax (814) 535-8364

Phone(814) 535-8363

Fax(814) 535-8364

Sole ProprietorNo

Enumeration DateJanuary 19, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1730232042 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in PA · DS017052L

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.

100 MAIN ST, Johnstown, PA 15901

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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 Robert Callahan's NPI number?

The NPI number for Robert Callahan is 1730232042. It was assigned to this individual provider in the NPPES registry on January 19, 2007.

Where is Robert Callahan located?

Robert Callahan practices at 100 Main St, Johnstown, PA 15901. The listed phone number is (814) 535-8363.

What is Robert 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 Robert 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.