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

Ronald E Julis, MD

Individual provider Internal Medicine Physician · NPI 1053311167

Ronald E Julis, MD is an Internal Medicine Physician in Napa, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2005
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

3273 Claremont Way Ste 201
Napa, CA 94558-3329
Phone: (707) 252-0313
Fax: (707) 252-0320
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 OOG273880 (CA)

Record details

NPI number1053311167
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 29, 2005
Last updated in NPPESAugust 14, 2013
Mailing address3273 Claremont Way Ste 201, Napa, CA 94558-3329

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