Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary J Topmiller, NP

Nurse Practitioner in Tucson, AZ · enumerated 2006.

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

National Provider Identifier

1033164074

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Registry record

Entity type Individual (Type 1)

Name Ms. Mary J Topmiller

Credential NP

Sex Female

Practice address 6130 N La Cholla Blvd, Suite 100 La Cholla Family Practice, Tucson, AZ, 85741

Phone (520) 742-4159

Fax (520) 742-3493

Enumeration date May 24, 2006

Last updated in NPPES Mar 1, 2010

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN057425 (AZ) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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 Mary Topmiller?

Mary Topmiller is registered in NPPES with the primary taxonomy of Nurse Practitioner. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-01.