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

Dr. David Joseph Derose, MD

Individual provider Internal Medicine Physician · NPI 1700118700

Dr. David Joseph Derose, MD is an Internal Medicine in Weimar, California. Graduated from Loma Linda University School of Medicine in 1984, 42 years ago. Practices with Adventist Health Clearlake Hospital Inc, a 86-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
42
Trained at
Loma Linda University School of Medicine
Licensed in
CA
In the registry since
2010
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

20601 W Paoli Ln
Weimar, CA 95736-0486
Phone: (530) 637-4111
Fax: (530) 637-4443
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 G83828 (CA)
Preventive Medicine/Occupational Environmental Medicine Physician Taxonomy 2083P0500X · Licence G83828 (CA)

Record details

NPI number1700118700
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 2, 2010
Last updated in NPPESFebruary 2, 2010

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Adventist Health Clearlake Hospital Inc. — 86 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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