Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aaron William Holterman, PHARMD

Pharmacist in Janesville, WI · enumerated 2020 · practices at Walgreen Co.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1437782034

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Aaron William Holterman

Credential PHARMD

Sex Male

Practice address 1740 Center Ave, Janesville, WI, 53546

Phone (608) 757-1261

Fax (608) 757-1451

Enumeration date Feb 21, 2020

Last updated in NPPES Dec 18, 2022

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 19040-40 (WI) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Aaron Holterman's NPI record?

Cross-check NPI 1437782034 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1437782034 active?

Yes, as of the latest NPPES snapshot, NPI 1437782034 is active (record last updated 2022-12-18).

Other providers at this practice address

Browse all →

Walgreen Co Pharmacy · Janesville, WI NPI 1346431327 Jean Dobson Pharmacist · Janesville, WI NPI 1134404320 Julie Dravus Pharmacist · Janesville, WI NPI 1497031363

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-18.