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

Derek Q Phan, MD

Individual provider Internal Medicine Physician · NPI 1598184244

Derek Q Phan, MD is an Internal Medicine in Temescal Valley, California. Qualified in 2014, 12 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California, Kansas, Washington and Wisconsin.

Years since qualifying
12
Licensed in
CA, KS, WA, WI
In the registry since
2014
Specialties on file
8
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

21634 Retreat Pkwy
Temescal Valley, CA 92883-6100
Phone: (951) 493-6650
Show map & directions

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

Additional practice locations (3)

  • 800 S Main St, Corona, CA 92882-3420 — (213) 569-1450
  • 4733 W Sunset Blvd, Los Angeles, CA 90027-6021 — (237) 834-0113
  • 1818 N Meade St, Appleton, WI 54911-3454 — (920) 731-8900

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 100522 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD61123756 (WA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 0447579 (KS)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence A138554 (CA)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 100522 (WI)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence MD61123756 (WA)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 0447579 (KS)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence A138554 (CA)

Record details

NPI number1598184244
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 9, 2014
Last updated in NPPESJuly 31, 2023
Certification dateJuly 31, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare