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

Dr. Ernesto Casillas Jr., MD

Individual provider Internal Medicine Physician · NPI 1952832354

Dr. Ernesto Casillas Jr., MD is a Pulmonary Disease in San Francisco, California. Graduated from University of Southern California Keck School of Medicine in 2017, 9 years ago. Practices with University of California Sfgh Medical Group, a 571-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
9
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2017
Specialties on file
3
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

513 Parnassus Ave # 111
San Francisco, CA 94143-2205
Phone: (415) 476-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence A157855 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A157855 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence A157855 (CA)

Record details

NPI number1952832354
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 27, 2017
Last updated in NPPESSeptember 4, 2024
Certification dateSeptember 4, 2024

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice University Of California Sfgh Medical Group — 571 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations7 on file with Medicare

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