Alexander Judson Moore Ruby, MD
Emergency Medicine Physician · El Segundo, CA
Alexander Judson Moore Ruby, MD is an emergency medicine physician with a practice address in El Segundo, California, and NPI 1366822348, issued on Jun 4, 2015. Check the license (California A159865, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander Judson Moore Ruby
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- A159865 CA
125067303 IL
Self-reported in NPPES; status is on the state search - Practice location
- 898 N Pacific Coast Hwy Ste 600, El Segundo, CA 90245
- Phone
- (310) 379-2134
- Enumerated
- Jun 4, 2015
- Record last updated
- Mar 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20251112003688); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 898 N Pacific Coast Hwy Ste 600
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Justine Dolbier, PA-CPhysician Assistant1386482735
- Christopher Hammond, DOInternal Medicine Physician1316107675
- Mitchell Katona, MD, MPHEmergency Medicine Physician1205457041
- Jennifer Kuo, NPFamily Nurse Practitioner1811552805
- Andrew Mikhail, M.D.Emergency Medicine Physician1902300395
- Mohammed Swissa, PA-SPhysician Assistant1396210969
Verify Alexander Judson Moore Ruby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A159865Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average emergency medicine physician in 2024
50 Medicare Part D claims for 41 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 90 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
Other emergency medicine physician records in California
- Cooper Aakhus, MDStanford, CA1194351007
- Pyra Aarden, MDMartinez, CA1417058199
- Neal Aaron, D.O.Encinitas, CA1114283520
- Eric AaserudeWalnut Creek, CA1811491194
- Nader Abas, MDBarstow, CA1346288305
- Michael Abbo, MDNovato, CA1205819042
- Daniel Abbott, MDFullerton, CA1518907864
- Paul-Andre Abboud, M.D.Oakland, CA1710065503
- Mostafa Abdel-Hamid, MDStanford, CA1457918740
- Ashraf Abdel-KerimChino, CA1396961538
Common questions
What is Alexander Judson Moore Ruby, MD's NPI number?
Alexander Judson Moore Ruby, MD's National Provider Identifier (NPI) is 1366822348, issued on Jun 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Judson Moore Ruby, MD located?
The NPPES record lists a practice address at 898 N Pacific Coast Hwy Ste 600, El Segundo, CA, 90245. Phone: (310) 379-2134. Providers update this record themselves, so call before visiting.
How can I verify Alexander Judson Moore Ruby, MD's license?
NPPES lists California license number A159865, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alexander Judson Moore Ruby, MD prescribe under Medicare Part D?
In 2024, Alexander Judson Moore Ruby, MD had 50 Medicare Part D claims for 41 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Alexander Judson Moore Ruby, MD's MIPS final score?
The 2023 MIPS final score is 90 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.