Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Sean Leoni, MD

Individual provider Internal Medicine Physician · NPI 1669544052

Sean Leoni, MD is an Internal Medicine in Calabasas, California. Qualified in 1993, 33 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
33
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

26500 Agoura Rd Ste 102-581
Calabasas, CA 91302-1952
Phone: (888) 254-6600
Fax: (818) 788-8343
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A53547 (CA)

Record details

NPI number1669544052
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 14, 2006
Last updated in NPPESMarch 7, 2023
Mailing address16661 Ventura Blvd, Suite 604, Encino, CA 91436-1914

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesPAIN MANAGEMENT
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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