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

Mrs. Suzanne Heidi Keenan, APRN

Nurse Practitioner in San Mateo, CA · enumerated 2006 · practices at California Cancer Care A Medical Group Inc.

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

National Provider Identifier

1427144237

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Registry record

Entity type Individual (Type 1)

Name Mrs. Suzanne Heidi Keenan

Credential APRN

Sex Female

Practice address San Mateo, CA, 94402

Phone (650) 341-9131

Fax (650) 341-9135

Enumeration date Oct 5, 2006

Last updated in NPPES Feb 18, 2009

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 070145 (CT) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 390724 (CA) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 003457 (CT) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP17799 (CA) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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

Where does Suzanne Keenan practice?

The practice location on file with NPPES is in San Mateo, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Suzanne Keenan?

The National Provider Identifier (NPI) for Suzanne Keenan is 1427144237, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Karen Chee Hematology & Oncology Physician · San Mateo, CA NPI 1487637310 California Cancer Care A Medical Group Inc Specialist · San Mateo, CA NPI 1619945920 Daniel Rengstorff Gastroenterology Physician · San Mateo, CA NPI 1033295662 Kent Adler Hematology & Oncology Physician · San Mateo, CA NPI 1013074632 John Siebel Medical Oncology Physician · San Mateo, CA NPI 1780741306 Angela Laffan Adult Health Nurse Practitioner · San Mateo, CA NPI 1710044482 Jennifer Brown Hematology & Oncology Physician · San Mateo, CA NPI 1740347350 Bradley Ekstrand Hematology & Oncology Physician · San Mateo, CA NPI 1528125135

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-18.