Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Tamara Adriana Ortiz-Hammer, NP

Nurse Practitioner in Carmichael, CA · enumerated 2019.

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

National Provider Identifier

1578020160

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Registry record

Entity type Individual (Type 1)

Name Tamara Adriana Ortiz-Hammer

Credential NP

Sex Female

Practice address Carmichael, CA, 95608

Phone (781) 835-7409

Enumeration date Mar 1, 2019

Last updated in NPPES Jun 3, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95011210 (CA) 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

How do I verify Tamara Ortiz-Hammer's NPI record?

Cross-check NPI 1578020160 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578020160 active?

Yes, as of the latest NPPES snapshot, NPI 1578020160 is active (record last updated 2020-06-03).

Other providers at this practice address

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Maryam Jeiroodi Physician Assistant · Carmichael, CA NPI 1780208603

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-03.