Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1497097885 Individual Practitioner Male Practitioner

John T Callahan , RPH

Pharmacist • Saint Louis, MO

Professional Overview & Biography Verified Profile Summary

John Callahan, RPH is a registered healthcare professional specializing in Pharmacist in Saint Louis, MO. Practice services are available at 1 JEFFERSON BARRACKS DR under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1 Jefferson Barracks Dr

Saint Louis, MO 631254181

Telephone 3148946570
Fax 3148455091
Associated Practice Facility / Clinic
🏢 St. Louis Jc Vamc Facility NPI 1558319715

Specialty Benchmarks & Practice Insights

Comparative analytics for Pharmacist in Saint Louis, MO

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 3.0 Yrs
State Avg: 10.7 Yrs
Regional Practice Density
1012 Specialists

Practicing in Saint Louis, MO (5469 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-05-01
Pharmacist Primary Specialty

NUCC Taxonomy Code: 183500000X

State License WY 2589

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.

Pharmacist

NUCC Taxonomy Code: 183500000X

State License IL 051303891

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.

Pharmacist

NUCC Taxonomy Code: 183500000X

State License CO 10452

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.

Secondary Practice Locations

915 N Grand Blvd

Saint Louis, MO 631061621

Phone: 3142242793

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
NPI 1528020260

Registered Pharmacist

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events
📍
Updated Practice Location May 01, 2026

Registered at 1 JEFFERSON BARRACKS DR, SAINT LOUIS, MO 631254181 (Tel: 3148946570)

📍
Updated Business Mailing Address May 01, 2026

Registered at 901 WASHINGTON AVE UNIT 504, SAINT LOUIS, MO 631011259 (Tel: 7195108155)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 01, 2026

Pharmacist (License #051303891 in IL)

📍
Updated Practice Location November 22, 2022

Registered at 3475 N SARATOGA ST RM 140, OAK HARBOR, WA 982788209 (Tel: 7195108155)

📍
Updated Business Mailing Address November 22, 2022

Registered at 5853 SANDS WAY APT A, ANACORTES, WA 982214806 (Tel: 3602579706)

NPI Profile Active March 23, 2013

NPI status registered as active in NPPES database

📍
Updated Practice Location March 23, 2013

Registered at 5645 JARMAN ST, COLORADO SPRINGS, CO 809068209 (Tel: 7195108155)

📍
Updated Business Mailing Address March 23, 2013

Registered at 5645 JARMAN ST, COLORADO SPRINGS, CO 809068209 (Tel: 7195108155)

👤
Provider Name / Credentials Updated March 23, 2013

Recorded as JOHN CALLAHAN, R.PH.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 23, 2013

Pharmacist (License #10452 in CO)

🟢
Initial NPI Registration & Enumeration March 23, 2013

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1497097885
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 23, 2013
Last Update: May 01, 2026
Sole Proprietor: Yes

Mailing Address

901 Washington Ave Unit 504

Saint Louis, MO 631011259

Phone: 7195108155

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.