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

Robert Melikian, MD

Individual provider Internal Medicine Physician · NPI 1811931017

Robert Melikian, MD practises Internal Medicine in Los Alamitos, California. Qualified in 1984, 42 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
42
Licensed in
CA
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

3801 Katella Ave
Los Alamitos, CA 90720-3369
Phone: (562) 594-8149
Fax: (562) 493-4529
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

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A49371 (CA)

Record details

NPI number1811931017
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 16, 2006
Last updated in NPPESSeptember 27, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients273
Services billed 1,874 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Uci Health-Orange Hospital · Orange, CA
  • Charity Home Health Services Home health agency · Torrance, CA

Also affiliated with 1 long-term care hospital, which CMS identifies by certification number only.

Other providers in Los Alamitos