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

William Casas

Individual provider Family Medicine Physician · NPI 1477998615

William Casas is a Family Practice in LA Verne, California. Qualified in 1996, 30 years ago. Practices with Premier Family Medicine Associates, Inc, a 65-clinician group and offers telehealth. Licensed in California.

Years since qualifying
30
Licensed in
CA
In the registry since
2013

Practice location Address checks out

2333 Foothill Blvd Ste B
LA Verne, CA 91750-3027
Phone: (909) 392-6501
Fax: (909) 469-2136
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A139442 (CA)

Record details

NPI number1477998615
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMay 1, 2013
Last updated in NPPESFebruary 25, 2026
Certification dateFebruary 25, 2026
Mailing address2333 Foothill Blvd Ste B, La Verne, CA 91750-3027

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Premier Family Medicine Associates, Inc — 65 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

Other providers in LA Verne