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

Individual provider Internal Medicine Physician · NPI 1851928121

Juan Fidel Penaloza Pacheco, MD is an Internal Medicine Physician in Vacaville, California. Licensed in California. Registered with an NPI since 2020.

Licensed in
CA
In the registry since
2020
Specialties on file
2
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

1600 California Dr
Vacaville, CA 95687
Phone: (707) 448-6841
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Prison Health Clinic/Center (primary) Taxonomy 261QP2400X · Licence A178289 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A178289 (CA)

Record details

NPI number1851928121
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 25, 2020
Last updated in NPPESApril 1, 2026
Certification dateApril 1, 2026

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