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

William Ray Mostow, MD

Individual provider Emergency Medicine Physician · NPI 1922057348

William Ray Mostow, MD is an Emergency Medicine in Sun City, Arizona. Graduated from Northwestern University Feinberg Medical School in 1989, 37 years ago. Practices with Cep America- Arizona, PC, a 88-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
37
Trained at
Northwestern University Feinberg Medical School
Licensed in
AZ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

14502 W Meeker Blvd
Sun City, AZ 85375
Phone: (623) 214-4000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 26337 (AZ)

Record details

NPI number1922057348
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 10, 2006
Last updated in NPPESJanuary 14, 2009
Mailing address2100 Powell Street Ste 920, Emeryville, CA 94608-1803

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 1989 (37 years in practice)
Group practice Cep America- Arizona, Pc — 88 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Sun City