Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melissa Warkentin-Thiessen, PHARM.D.

Pharmacist in Tucson, AZ · enumerated 2005.

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

National Provider Identifier

1255324794

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Melissa Warkentin-Thiessen

Credential PHARM.D.

Sex Female

Practice address 320 W Prince Rd, Tucson, AZ, 85705

Phone (520) 838-7663

Fax (520) 838-7698

Enumeration date Aug 30, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 13256 (AZ) 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

What specialty is Melissa Warkentin-Thiessen?

Melissa Warkentin-Thiessen is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Cecilia Adams Pediatrics Physician · Tucson, AZ NPI 1861486474 Tracey Kurtzman Pediatrics Physician · Tucson, AZ NPI 1215926381 Marsha Mason Pediatrics Physician · Tucson, AZ NPI 1679556518 Fanny Nisbet Pediatrics Physician · Tucson, AZ NPI 1811971021 El Rio Northwest Pharmacy Clinic Pharmacy · Tucson, AZ NPI 1093791873 Alissa Sadalla Pediatrics Physician · Tucson, AZ NPI 1710965355 James Fiastro Pulmonary Disease Physician · Tucson, AZ NPI 1962502153 Mary Zimmerman Pediatrics Physician · Tucson, AZ NPI 1346334083

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.