1. Home
  2. Directory
  3. Indiana
  4. Polis
  5. Pharmacist
  6. NPI Profile

DR. WILLIAM GEORGE LOSIN PHARM D
NPI 1255059226
Pharmacist - Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in Indianapolis, IN

Active since August 16, 2022
2629 E 65TH ST, INDIANAPOLIS, IN 46220(317) 252-5333(317) 252-5332 Get Directions Write a Review

NPPES record last updated: June 18, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. William George Losin Pharm D NPPES

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

DR. WILLIAM GEORGE LOSIN PHARM D (NPI 1255059226) is an individual pharmacist clinician (phc)/ clinical pharmacy specialist in Indianapolis, Indiana, licensed in Indiana (26015433A) and active in the NPI registry since August 2022.

NPPES Registry Identity

NPI1255059226
Entity TypeIndividualMale
Primary Taxonomy1835P0018X
Provider Legal NameDR. WILLIAM GEORGE LOSINCredential: PHARM D
Location Address2629 E 65TH STIndianapolis, IN 46220-1507
Mailing Address2629 E 65th StIndianapolis, IN 46220-1507 · (317) 252-5333 · Fax (317) 252-5332
Phone(317) 252-5333
Fax(317) 252-5332
Sole ProprietorNo
Enumeration DateAugust 16, 2022
Last NPPES UpdateJune 18, 2026
NPPES CertifiedJune 18, 2026
✔ NPI 1255059226 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPharmacist · Pharmacist Clinician (PhC)/ Clinical Pharmacy SpecialistPharmacy Service Providers
Taxonomy Code1835P0018X
License✔ Licensed in IN · 26015433A
Definition

Pharmacist Clinician/Clinical Pharmacy Specialist is a pharmacist with additional training and an expanded scope of practice that may include prescriptive authority, therapeutic management, and disease management.

Also ListedPharmacistTaxonomy 183500000X · License 26015433A (IN)
2629 E 65TH ST, Indianapolis, IN 46220
Open in Google Maps ↗

Other Identifiers 1

Other26015433AIN · Health Professions Bureau

Other Providers at the Same Location NPPES 4

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

KROGER LIMITED PARTNERSHIP I
Pharmacy (Community/Retail Pharmacy)
2629 E 65TH ST
INDIANAPOLIS, IN 46220
Marion County (317) 252-5333
CHRISTOPHER ISAAC RIEGEL
Pharmacist
2629 E 65TH ST
INDIANAPOLIS, IN 46220
Marion County (317) 252-5333
HALEY JOCELYNN KLUTH PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
2629 E 65TH ST
INDIANAPOLIS, IN 46220
Marion County (317) 255-1498
MEGAN MATLOCK PHARMD, RPH
Pharmacist
2629 E 65TH ST
INDIANAPOLIS, IN 46220
Marion County (317) 252-5333

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 William Losin's NPI number?

The NPI number for William Losin is 1255059226. It was assigned to this individual provider in the NPPES registry on August 16, 2022.

Where is William Losin located?

William Losin practices at 2629 E 65th St, Indianapolis, IN 46220. The listed phone number is (317) 252-5333.

What is William Losin's specialty?

The primary specialty registered for this NPI is Pharmacist, specializing in Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist, with taxonomy code 1835P0018X.

When was this NPI record last updated?

The NPPES record for William Losin was last updated on June 18, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.