MR. JOHN T CALLAHAN R.PH.
NPI 1497097885
Pharmacist in Saint Louis, MO

Active since March 23, 2013
1 JEFFERSON BARRACKS DR, SAINT LOUIS, MO 63125(314) 894-6570(314) 845-5091 Get Directions Write a Review

NPPES record last updated: May 1, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 1, 2026, Nov 22, 2022 (2 updates tracked since 2022).

About Mr. John T Callahan R.ph. NPPES

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

MR. JOHN T CALLAHAN R.PH. (NPI 1497097885) is an individual pharmacist in Saint Louis, Missouri, licensed in Wyoming (2589) and active in the NPI registry since March 2013. He maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1497097885
Entity TypeIndividualMale
Primary Taxonomy183500000X
Provider Legal NameMR. JOHN T CALLAHANCredential: R.PH.
Location Address1 JEFFERSON BARRACKS DRSaint Louis, MO 63125-4181
Mailing Address901 Washington Ave Unit 504Saint Louis, MO 63101-1259 · (719) 510-8155 · Fax (314) 845-5091
Fax(314) 845-5091
Sole ProprietorYes
Enumeration DateMarch 23, 2013
Last NPPES UpdateMay 1, 20262 updates tracked since enumeration
NPPES CertifiedMay 1, 2026
NPI 1497097885 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPharmacistPharmacy Service Providers
Taxonomy Code183500000X
Licenses Licensed in WY · 2589 Licensed in IL · 051303891 Licensed in CO · 10452
Definition
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care.
1 JEFFERSON BARRACKS DR, Saint Louis, MO 63125

Secondary Practice Location 1

Location 1915 N Grand BlvdSaint Louis, MO 63106-1621 · Phone (314) 224-2793 · Fax (314) 845-5091

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychologist (Clinical)
1 JEFFERSON BARRACKS DR
SAINT LOUIS, MO 63125
Social Worker
1 JEFFERSON BARRACKS DR
SAINT LOUIS, MO 63125
Physician Assistant
1 JEFFERSON BARRACKS DR
SAINT LOUIS, MO 63125
Pharmacist (Geriatric)
1 JEFFERSON BARRACKS DR
SAINT LOUIS, MO 63125
Psychiatry & Neurology (Psychiatry)
1 JEFFERSON BARRACKS DR
SAINT LOUIS, MO 63125
Internal Medicine
1 JEFFERSON BARRACKS DR
SAINT LOUIS, MO 63125
Nurse Practitioner (Adult Health)
1 JEFFERSON BARRACKS DR
SAINT LOUIS, MO 63125
Registered Nurse
1 JEFFERSON BARRACKS DR
SAINT LOUIS, MO 63125

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 John Callahan's NPI number?

The NPI number for John Callahan is 1497097885. It was assigned to this individual provider in the NPPES registry on March 23, 2013.

Where is John Callahan located?

John Callahan practices at 1 Jefferson Barracks Dr, Saint Louis, MO 63125. The listed phone number is (314) 894-6570.

What is John Callahan's specialty?

The primary specialty registered for this NPI is Pharmacist with taxonomy code 183500000X.

When was this NPI record last updated?

The NPPES record for John Callahan was last updated on May 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.