Ryan Colby Passaro
Emergency Medicine Physician · Los Angeles, CA
Ryan Colby Passaro is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1043773930, issued on Apr 9, 2019. Check the license (California A179594, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan Colby Passaro
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A179594 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2051 Marengo St, Los Angeles, CA 90033
- Phone
- (323) 409-1000
- Enumerated
- Apr 9, 2019
- Record last updated
- Jun 28, 2022
- Medicare enrollment
- Enrolled (PECOS I20220610000791); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2051 Marengo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Helen AbolarinPsychiatric/Mental Health Nurse Practitioner1407551740
- Nawal AbouzahrStudent in an Organized Health Care Education/Training Program1881054104
- Shelby AdlerPsychiatry Physician1407432263
- Shalleymar AgitoRegistered Respiratory Therapist1649850694
- Adolfo AguilarCritical Care Registered Respiratory Therapist1053836999
- Ashley Allen, MDEmergency Medicine Physician1053751875
Verify Ryan Colby Passaro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A179594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average emergency medicine physician in 2024
363 Medicare Part D claims for 238 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass41 claims
- Cefdinir29 claims
- Ondansetron Hcl28 claims
- Doxycycline Hyclate17 claims
- Hydrocodone-Acetaminophen17 claims
- Azithromycin16 claims
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.
Bills Medicare through one group practice
- Torrance Emergency Physicians IncTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Colby Passaro among 7,751 emergency medicine physician records in California
Ryan Colby Passaro is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2019 · median 2011 among the 4,560 with a school on file
- Record last updated2022 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Los Angeles → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Deirdre Anglin, MDLos Angeles, CA 900331306932025
- Joseph BaltrushesLos Angeles, CA 900331629152178
- Aaron Bright, M.D.Los Angeles, CA 900331023054087
- Christopher Celentano, MDLos Angeles, CA 900331972516417
- Christine DinuzzoLos Angeles, CA 900331952456741
- Marc Eckstein, M.D.Los Angeles, CA 900331922010867
- Sean Henderson, M.D.Los Angeles, CA 900331205887064
- Helen Ho, MDLos Angeles, CA 900331447208962
Common questions
What is Ryan Colby Passaro's NPI number?
Ryan Colby Passaro's National Provider Identifier (NPI) is 1043773930, issued on Apr 9, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Colby Passaro located?
The NPPES record lists a practice address at 2051 Marengo St, Los Angeles, CA, 90033. Phone: (323) 409-1000. Providers update this record themselves, so call before visiting.
How can I verify Ryan Colby Passaro's license?
NPPES lists California license number A179594, 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 Ryan Colby Passaro prescribe under Medicare Part D?
In 2024, Ryan Colby Passaro had 363 Medicare Part D claims for 238 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.