Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Theresa Louise Harnak, PHARMD

Pharmacist in Phoenixville, PA · enumerated 2017 · practices at Pennsylvania Cvs Pharmacy LLC.

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

National Provider Identifier

1093256943

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Registry record

Entity type Individual (Type 1)

Name Dr. Theresa Louise Harnak

Credential PHARMD

Sex Female

Practice address 200 Mill Rd, Phoenixville, PA, 19460

Phone (610) 650-3927

Enumeration date Mar 12, 2017

Last updated in NPPES Mar 12, 2017

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License RP451202 (PA) 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

Is NPI 1093256943 active?

Yes, as of the latest NPPES snapshot, NPI 1093256943 is active (record last updated 2017-03-12).

How do I verify Theresa Harnak's NPI record?

Cross-check NPI 1093256943 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Pennsylvania Cvs Pharmacy LLC Pharmacy · Phoenixville, PA NPI 1982627261 Emily Warrick Student in an Organized Health Care Education/Training Program · Phoenixville, PA NPI 1790176279 Ricky Philipossian Pharmacist · Phoenixville, PA NPI 1487353900

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-12.