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

Individual provider Emergency Medicine Physician · NPI 1366822348

Alexander Judson Moore Ruby, MD practises Emergency Medicine in El Segundo, California. Qualified in 2015, 11 years ago. Works from 2 locations. Licensed in California and Illinois.

Years since qualifying
11
Licensed in
CA, IL
In the registry since
2015
Specialties on file
2
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

898 N Pacific Coast Hwy Ste 600
El Segundo, CA 90245-2747
Phone: (310) 379-2134
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1901 W Harrison St, Chicago, IL 60612-3714 — (312) 864-6000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A159865 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 125067303 (IL)

Record details

NPI number1366822348
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 4, 2015
Last updated in NPPESMarch 6, 2020
Certification dateMarch 6, 2020

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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 patients183
Services billed 286 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Other providers in El Segundo