Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Natalee Ernstrom, NP, MSN

Community Health Nurse Practitioner in San Francisco, CA · enumerated 2007 · practices at City & County of San Francisco.

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

National Provider Identifier

1598882961

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Registry record

Entity type Individual (Type 1)

Name Ms. Natalee Ernstrom

Credential NP, MSN

Sex Female

Practice address 1000 Cayuga Ave, Balboa Teen Health Center, San Francisco, CA, 94112

Phone (415) 469-4512

Fax (415) 469-4096

Enumeration date Mar 23, 2007

Last updated in NPPES Jul 26, 2007

Taxonomy & licenses

163WC1500X Community Health Registered Nurse Nursing Service Providers · License RN 546703 (CA) Secondary

363LC1500X Community Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NPF11774 (CA) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NPF11774 (CA) Secondary

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

Other identifiers

Identifier	Type	State	Issuer
068122	Other	-	SFGH INTERNAL USE ONLY-COMMERCIAL NUMBER

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

Is NPI 1598882961 active?

Yes, as of the latest NPPES snapshot, NPI 1598882961 is active (record last updated 2007-07-26).

How do I verify Natalee Ernstrom's NPI record?

Cross-check NPI 1598882961 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-26.