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

Gretel Dayna D'Souza, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1679138531

Gretel Dayna D'Souza, MD is a Rheumatology in Sylmar, California. Qualified in 2018, 8 years ago. Practices with Lakeside Medical Organization a Medical Group Inc, a 65-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
8
Licensed in
CA
In the registry since
2019
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Sylmar, CA
Fax: (805) 569-8358

Additional practice locations (1)

  • Sbch, Medical Education, Santa Barbara, CA 93015 — (805) 569-7315

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 178675 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1679138531
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 7, 2019
Last updated in NPPESJuly 27, 2022
Certification dateJuly 27, 2022

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Lakeside Medical Organization A Medical Group Inc — 65 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Sylmar