Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. William Michael Drilling, B.S. RPH
Pharmacist in Sioux City, IA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1174543243
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Registry record
Entity type Individual (Type 1)
Name Mr. William Michael Drilling
Credential B.S. RPH
Sex Male
Practice address 4010 Morningside Ave, Sioux City, IA, 51106
Phone (712) 276-4621
Fax (712) 274-1293
Enumeration date Jul 20, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 16611 | Other | IA | IOWA PHARMACY LICENSE |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does William Drilling practice?
The practice location on file with NPPES is in Sioux City, IA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Drilling?
The National Provider Identifier (NPI) for William Drilling is 1174543243, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Drilling Morningside Pharmacy Inc Community/Retail Pharmacy · Sioux City, IA NPI 1336166214 Elizabeth Webb Pharmacist · Sioux City, IA NPI 1437528908 Drilling Morningside Pharmacy Inc Long Term Care Pharmacy · Sioux City, IA NPI 1609371178 Abigail Banks Pharmacist · Sioux City, IA NPI 1801372966 Sarah Sorensen Pharmacist · Sioux City, IA NPI 1619445103 Marah Hart Pharmacist · Sioux City, IA NPI 1912722455 Donald Drilling Pharmacist · Sioux City, IA NPI 1427993427
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.