Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane Marie Simeone, MD

Surgery Physician in La Jolla, CA · enumerated 2006.

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

National Provider Identifier

1215038138

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Registry record

Entity type Individual (Type 1)

Name Diane Marie Simeone

Credential MD

Sex Female

Practice address 3855 Health Sciences Dr, La Jolla, CA, 92093

Phone (800) 926-8273

Enumeration date Sep 25, 2006

Last updated in NPPES Sep 11, 2024

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License G195633 (CA) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 4301053273 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
3169854	Medicaid	MI	-

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 is the NPI number for Diane Simeone?

The National Provider Identifier (NPI) for Diane Simeone is 1215038138, a Type 1 (individual) record in the CMS NPPES registry.

Where does Diane Simeone practice?

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

Other providers at this practice address

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Hitendra Patel Medical Oncology Physician · La Jolla, CA NPI 1356327316 Rafael Bejar Hematology & Oncology Physician · La Jolla, CA NPI 1720051493 Teresa Helsten Hematology & Oncology Physician · La Jolla, CA NPI 1265408678 Karin Morris Physician Assistant · La Jolla, CA NPI 1306815477 Michael Mchale Gynecologic Oncology Physician · La Jolla, CA NPI 1508828179 Jill Attia Nurse Practitioner · La Jolla, CA NPI 1275598591 Barbara Parker Hematology & Oncology Physician · La Jolla, CA NPI 1629093927 Ajay Pal Sandhu Radiation Oncology Physician · La Jolla, CA NPI 1881610137

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-11.