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

Maria Jesusa Buan Tan, FNP

Individual provider Registered Nurse · NPI 1770098527

Maria Jesusa Buan Tan, FNP is a Nurse Practitioner in Chatsworth, California. Qualified in 2017, 9 years ago. Practices with Horizon Multicare Group Inc, a 26-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
9
Licensed in
CA
In the registry since
2017
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

Practice location Address checks out

9301 Oakdale Ave Ste 200
Chatsworth, CA 91311-6538
Phone: (818) 205-0900
Show map & directions

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

Additional practice locations (1)

  • 43830 10th St W, Lancaster, CA 93534-4826 — (661) 494-8600

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95007997 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 725854 (CA)

Record details

NPI number1770098527
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedDecember 1, 2017
Last updated in NPPESJanuary 12, 2026
Certification dateJanuary 12, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Horizon Multicare Group Inc — 26 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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