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THOMAS J. KLEYN PHARM.D.
NPI 1790196855
Pharmacist - Pharmacotherapy in Pomona, CA

Active since May 12, 2014
309 E 2ND ST, POMONA, CA 91766(909) 469-8638 Get Directions Write a Review

NPPES record last updated: May 12, 2014. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Thomas J. Kleyn Pharm.d. NPPES

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

THOMAS J. KLEYN PHARM.D. (NPI 1790196855) is an individual pharmacotherapy provider in Pomona, California, licensed in California (67340) and active in the NPI registry since May 2014.

NPPES Registry Identity

NPI1790196855
Entity TypeIndividualMale
Primary Taxonomy1835P1200X
Provider Legal NameTHOMAS J. KLEYNCredential: PHARM.D.
Location Address309 E 2ND STPomona, CA 91766-1854
Mailing Address309 E 2nd StPomona, CA 91766-1854 · (909) 469-8638
Phone(909) 469-8638
Sole ProprietorYes
Enumeration DateMay 12, 2014
✔ NPI 1790196855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPharmacist · PharmacotherapyPharmacy Service Providers
Taxonomy Code1835P1200X
Licenses✔ Licensed in CA · 67340✔ Licensed in IN · 26023576A
Definition
A licensed pharmacist who has demonstrated specialized knowledge and skill in optimizing pharmacotherapeutic care of patients, by developing, implementing, monitoring, and modifying complex treatment plans, providing advanced level education and consultation, and collaborating with other health professionals in the management of therapy.
309 E 2ND ST, Pomona, CA 91766
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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.

NANCY IRENE NIELSEN-BROWN PA-C
Physician Assistant (Medical)
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5386
BRITTNEY TUNON
Physician Assistant
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (703) 955-6286
MR. EVAN HERSHMAN
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
CHAU MINH NGUYEN PA-C
Physician Assistant
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (951) 892-4858
AMI PATEL
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
MR. FOUAD HAJJAR
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
THAO BICH VU
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
JULIA B DIAMANT
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589

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 Thomas Kleyn's NPI number?

The NPI number for Thomas Kleyn is 1790196855. It was assigned to this individual provider in the NPPES registry on May 12, 2014.

Where is Thomas Kleyn located?

Thomas Kleyn practices at 309 E 2nd St, Pomona, CA 91766. The listed phone number is (909) 469-8638.

What is Thomas Kleyn's specialty?

The primary specialty registered for this NPI is Pharmacist, specializing in Pharmacotherapy, with taxonomy code 1835P1200X.

When was this NPI record last updated?

The NPPES record for Thomas Kleyn was last updated on May 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.