NPPES file of Aug 9, 2026

Randall Scott Chong, M.D

Emergency Medicine Physician · Laguna Hills, CA

Randall Scott Chong, M.D is an emergency medicine physician with a practice address in Laguna Hills, California, and NPI 1124056387, issued on Jun 28, 2006. Check the license (California A65325, 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
1124056387
Name
Randall Scott Chong
Credential
M.D
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A65325 CA
Self-reported in NPPES; status is on the state search
Practice location
24451 Health Center Dr, Laguna Hills, CA 92653
Phone
(714) 837-4500
Enumerated
Jun 28, 2006
Record last updated
Feb 1, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
00A653250 CA
Medicare enrollment
Enrolled (PECOS I20050317001135); accepts Medicare assignment
Medical or professional school
Eastern Virginia Medical School, 1996
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 24451 Health Center Dr

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

  1. Jessica Alva, R.N.F.A.Registered Nurse First Assistant1265848733
  2. Jordan Amato, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1154279511
  3. Dwight Arakaki, M.DEmergency Medicine Physician1376653360
  4. Saryna Bahadarakhann, RNRegistered Nurse1861775116
  5. Joshua Bobko, MDEmergency Medicine Physician1235397621
  6. Brianna Brown, LCSWClinical Social Worker1144982000

Verify Randall Scott Chong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A65325
    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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16% more Medicare Part D claims than the average emergency medicine physician in 2024

262 Medicare Part D claims for 195 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 28 claims were for opioids.

  1. Randall Chong262
  2. Specialty average226

Most prescribed

  1. Cephalexin26 claims
  2. Doxycycline Hyclate25 claims
  3. Ondansetron Odt25 claims
  4. Sulfamethoxazole-Trimethoprim20 claims
  5. Hydrocodone-Acetaminophen19 claims
  6. Meclizine Hcl15 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): 94.6 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 score76.7
  2. Costout of 100 · 30%97.1
  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).

Industry payments in 2024: $172.81

13 payments; by number, the most common kind was food and beverage; the largest payer was Organogenesis Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Randall Chong$172.81
  2. Specialty average$953.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Cep America - Auc PCMission Viejo, CA

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

Randall Scott Chong among 7,751 emergency medicine physician records in California

Randall Scott Chong, M.D 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 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1996 · median 2011 among the 4,560 with a school on file
  • Record last updated2008 · 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. Dwight Arakaki, M.DLaguna Hills, CA 926531376653360
  2. Joshua Bobko, MDLaguna Hills, CA 926531235397621
  3. William Fields, M.DLaguna Hills, CA 926531699703801
  4. Edward Mescher, M.DLaguna Hills, CA 926531942246897
  5. Jennifer Newton, MDLaguna Hills, CA 926531053377697
  6. Martin Ogle, M.DLaguna Hills, CA 926531407884505
  7. Mark Reynolds, M.D.Laguna Hills, CA 926531831124577
  8. Eric Siedenburg, M.DLaguna Hills, CA 926531629006705

Common questions

What is Randall Scott Chong, M.D's NPI number?

Randall Scott Chong, M.D's National Provider Identifier (NPI) is 1124056387, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Randall Scott Chong, M.D located?

The NPPES record lists a practice address at 24451 Health Center Dr, Laguna Hills, CA, 92653. Phone: (714) 837-4500. Providers update this record themselves, so call before visiting.

How can I verify Randall Scott Chong, M.D's license?

NPPES lists California license number A65325, 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 Randall Scott Chong, M.D prescribe under Medicare Part D?

In 2024, Randall Scott Chong, M.D had 262 Medicare Part D claims for 195 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Randall Scott Chong, M.D's MIPS final score?

The 2023 MIPS final score is 94.6 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.