Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Amy Direnfeld, RN

Registered Nurse in Tucson, AZ · enumerated 2015.

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

National Provider Identifier

1437523164

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Registry record

Entity type Individual (Type 1)

Name Mrs. Amy Direnfeld

Credential RN

Sex Female

Practice address 1224 E Lowell St, Tucson, AZ, 85721

Phone (520) 621-2292

Enumeration date Nov 18, 2015

Last updated in NPPES Nov 18, 2015

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN045307 (AZ) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Amy Direnfeld?

Amy Direnfeld is registered in NPPES with the primary taxonomy of Registered Nurse. 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

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Bruce Helming Family Medicine Physician · Tucson, AZ NPI 1639143365 Heather Walsh Family Medicine Physician · Tucson, AZ NPI 1326072992 State of Arizona Clinic Pharmacy · Tucson, AZ NPI 1396845343 Maureen Oskandy Family Medicine Physician · Tucson, AZ NPI 1548324544 Jesssica Byron Obstetrics & Gynecology Physician · Tucson, AZ NPI 1194889139 Harry Mcdermott General Practice Physician · Tucson, AZ NPI 1588729461 Lisette Lecorgne School Nurse Practitioner · Tucson, AZ NPI 1588729446 Jennifer Wilson Mental Health Counselor · Tucson, AZ NPI 1023173911

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-18.