Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mary Jean Fietz, M.D.
Anatomic Pathology & Clinical Pathology Physician in Tempe, AZ · enumerated 2006 · practices at Laboratory Sciences of Arizona LLC.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154396133
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| AZ0182900 | Other | AZ | BCBSAZ-PATH ASSOC |
| AZ0828930 | Other | AZ | BCBSAZ-SUN CITY PATH |
| AX4478 | Other | AZ | HEALTH NET AZ-PATH ASSOC |
| 111287 | Medicaid | AZ | - |
| 1Z7112 | Other | AZ | HEALTH NET AZ-SUN CITY PA |
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
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-21.