NPPES file of Aug 9, 2026

Rowen Ou Jin, MD

Emergency Medicine Physician · Los Angeles, CA

Rowen Ou Jin, MD is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1063943967, issued on Mar 22, 2017. Check the license (California A158016, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063943967
Name
Rowen Ou Jin
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A158016 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
Mar 22, 2017
Record last updated
May 9, 2022
Medicare enrollment
Enrolled (PECOS I20201124002688); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2017
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2051 Marengo St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Helen AbolarinPsychiatric/Mental Health Nurse Practitioner1407551740
  2. Nawal AbouzahrStudent in an Organized Health Care Education/Training Program1881054104
  3. Shelby AdlerPsychiatry Physician1407432263
  4. Shalleymar AgitoRegistered Respiratory Therapist1649850694
  5. Adolfo AguilarCritical Care Registered Respiratory Therapist1053836999
  6. Ashley Allen, MDEmergency Medicine Physician1053751875

Verify Rowen Ou Jin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A158016
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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12% fewer Medicare Part D claims than the average emergency medicine physician in 2024

200 Medicare Part D claims for 135 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 20 claims were for opioids.

  1. Rowen Jin200
  2. Specialty average226

Most prescribed

  1. Cefpodoxime Proxetil24 claims
  2. Amoxicillin-Clavulanate Potass11 claims
  3. Oxycodone Hcl11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 94.7 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.

  1. Qualityout of 100 · 30% of the final score87.9
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Northbay Physicians Surgery Center, LLCFairfield, CA
  2. Permanente Medical Group IncSan Leandro, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rowen Ou Jin among 7,751 emergency medicine physician records in California

Rowen Ou Jin, MD 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 2017, is newer than 78% of them.

  • NPI issued2017 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2017 · 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.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Deirdre Anglin, MDLos Angeles, CA 900331306932025
  2. Joseph BaltrushesLos Angeles, CA 900331629152178
  3. Aaron Bright, M.D.Los Angeles, CA 900331023054087
  4. Christopher Celentano, MDLos Angeles, CA 900331972516417
  5. Christine DinuzzoLos Angeles, CA 900331952456741
  6. Marc Eckstein, M.D.Los Angeles, CA 900331922010867
  7. Sean Henderson, M.D.Los Angeles, CA 900331205887064
  8. Helen Ho, MDLos Angeles, CA 900331447208962

Common questions

What is Rowen Ou Jin, MD's NPI number?

Rowen Ou Jin, MD's National Provider Identifier (NPI) is 1063943967, issued on Mar 22, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Rowen Ou Jin, MD 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 Rowen Ou Jin, MD's license?

NPPES lists California license number A158016, 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 Rowen Ou Jin, MD prescribe under Medicare Part D?

In 2024, Rowen Ou Jin, MD had 200 Medicare Part D claims for 135 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Rowen Ou Jin, MD's MIPS final score?

The 2023 MIPS final score is 94.7 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.