NPPES file of Aug 9, 2026

Brandon Scott Romo Johnston, MD

Internal Medicine Physician · Colton, CA

Brandon Scott Romo Johnston, MD is an internal medicine physician with a practice address in Colton, California, and NPI 1619555885, issued on Mar 30, 2021. Check the license (California A194160, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619555885
Name
Brandon Scott Romo Johnston
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A194160 CA
Self-reported in NPPES; status is on the state search
Practice location
400 N Pepper Ave, Colton, CA 92324
Phone
(909) 580-6343
Enumerated
Mar 30, 2021
Record last updated
May 24, 2025
Medicare enrollment
Enrolled (PECOS I20250829004389); accepts Medicare assignment
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 400 N Pepper Ave

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

  1. Shangrila AbaricoRegistered Nurse1609659325
  2. Susana AbaroRegistered Nurse1114425162
  3. Patricia AbbaRegistered Nurse1013188838
  4. Mohammad Hossein Abbasi, MD, MPHStudent in an Organized Health Care Education/Training Program1609622166
  5. Ala AbedrabboCertified Registered Nurse Anesthetist1972333144
  6. Mary AboagyeLicensed Vocational Nurse1982875605

Verify Brandon Scott Romo Johnston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A194160
    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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92% fewer Medicare Part D claims than the average internal medicine physician in 2024

247 Medicare Part D claims for 35 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Brandon Johnston247
  2. Specialty average3,176

Most prescribed

  1. Jardiance24 claims
  2. Amlodipine Besylate17 claims
  3. Tamsulosin Hcl17 claims
  4. Atorvastatin Calcium16 claims
  5. Finasteride16 claims
  6. Metformin Hcl13 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.

Industry payments in 2024: $143.53

2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brandon Johnston$143.53
  2. Specialty average$1,303.06

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

Bills Medicare through 3 group practices

  1. Clinic Services OF California Medical Group IncColton, CA
  2. Quantum Healthcare Medical Associates IncColton, CA
  3. Southern California Permanente Medical GroupOntario, CA

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

Brandon Scott Romo Johnston among 17,696 internal medicine physician records in California

Brandon Scott Romo Johnston, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.

  • NPI issued2021 · 92% of these records are older, 5% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2021 · median 2004 among the 11,065 with a school on file
  • Record last updated2025 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

67 internal medicine physician records list a practice address in Colton

They are 67 of the 2,459 NPPES records with a practice address in Colton, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sarkis Arabian, DOColton, CA 923241336202266
  2. Yanfei Chen, MDColton, CA 923241437103322
  3. Calvin Duong, M.D.Colton, CA 923241184646119
  4. Anthony Enenmoh, MDColton, CA 923241811931603
  5. James Ericson, MDColton, CA 923241881731032
  6. Douglas Hay, MDColton, CA 923241386690980
  7. Ireny Ibrahim, MDColton, CA 923241811944598
  8. Cecilia Katz, MDColton, CA 923241376585349

Common questions

What is Brandon Scott Romo Johnston, MD's NPI number?

Brandon Scott Romo Johnston, MD's National Provider Identifier (NPI) is 1619555885, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Brandon Scott Romo Johnston, MD located?

The NPPES record lists a practice address at 400 N Pepper Ave, Colton, CA, 92324. Phone: (909) 580-6343. Providers update this record themselves, so call before visiting.

How can I verify Brandon Scott Romo Johnston, MD's license?

NPPES lists California license number A194160, 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 Brandon Scott Romo Johnston, MD prescribe under Medicare Part D?

In 2024, Brandon Scott Romo Johnston, MD had 247 Medicare Part D claims for 35 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.