Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr. Patrick Avanessian, MD

Individual provider Family Medicine Physician · NPI 1235480443

Dr. Patrick Avanessian, MD is registered under Family Practice in Fontana, California. Qualified in 2011, 15 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
15
Licensed in
WA
In the registry since
2012
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

9961 Sierra Ave
Fontana, CA 92335-6720
Phone: (909) 427-5084
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 201 16th Ave E, Seattle, WA 98112-5226 — (206) 326-3000

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD.MD.70162661 (WA)

Record details

NPI number1235480443
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 27, 2012
Last updated in NPPESSeptember 29, 2026
Certification dateSeptember 29, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Southern California Permanente Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 11242 clinicians in the practice; 12 are shown here.

Other providers in Fontana