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

Maruja Del Valle Diaz Arjonilla, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1841481074

Maruja Del Valle Diaz Arjonilla, MD is an Endocrinology in Santa Ana, California. Qualified in 1990, 36 years ago. Practices with Providence Medical Foundation, a 1,465-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
36
Licensed in
CA
In the registry since
2007
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

2212 E 4th St Ste 304
Santa Ana, CA 92705
Phone: (714) 288-3230
Fax: (714) 571-7719
Show map & directions

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

Additional practice locations (2)

  • 1160 Sunset Blvd, Rocklin, CA 85765-3772 — (916) 865-1000
  • 1160 Sunset Blvd, Rocklin, CA 85765-3772 — (916) 865-1000

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence A97144 (CA)

Record details

NPI number1841481074
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 5, 2007
Last updated in NPPESOctober 21, 2020
Certification dateOctober 21, 2020

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Providence Medical Foundation — 1465 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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