NPPES file of Aug 9, 2026

Robert Matthew Allison, M.B.B.S.

Emergency Medicine Physician · Loma Linda, CA

Robert Matthew Allison, M.B.B.S. is an emergency medicine physician with a practice address in Loma Linda, California, and NPI 1841721586, issued on Mar 24, 2017. Check the license (California A175468, 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
1841721586
Name
Robert Matthew Allison
Credential
M.B.B.S.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
A175468 CA
60266 AZ
Self-reported in NPPES; status is on the state search
Practice location
11234 Anderson St, Loma Linda, CA 92350
Phone
(909) 558-4344
Enumerated
Mar 24, 2017
Record last updated
Feb 27, 2025
Medicare enrollment
Enrolled (PECOS I20230710000923); 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 11234 Anderson St

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

  1. Nour Abdel-Azim, MDStudent in an Organized Health Care Education/Training Program1700671542
  2. Mostafa Abdulrahim, MDStudent in an Organized Health Care Education/Training Program1285579094
  3. Andranig AdjemianStudent in an Organized Health Care Education/Training Program1366236689
  4. Ira AdvaniStudent in an Organized Health Care Education/Training Program1770425449
  5. Hina Ahmed, FNPFamily Nurse Practitioner1689484958
  6. Saba Ahmed, MDStudent in an Organized Health Care Education/Training Program1114863172

Verify Robert Matthew Allison in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A175468
    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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About as many Medicare Part D claims as the average emergency medicine physician in 2024

225 Medicare Part D claims for 158 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Robert Allison225
  2. Specialty average226

Most prescribed

  1. Cephalexin23 claims
  2. Azithromycin20 claims
  3. Amoxicillin-Clavulanate Potass17 claims
  4. Hydrocodone-Acetaminophen13 claims
  5. Methocarbamol11 claims
  6. Naproxen11 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: $43.90

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. 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. Robert Allison$43.90
  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. Faculty Physicians And Surgeons OF LlusmLoma Linda, CA

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

Robert Matthew Allison among 7,751 emergency medicine physician records in California

Robert Matthew Allison, M.B.B.S. 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
  • Graduated2016 · median 2011 among the 4,560 with a school on file
  • Record last updated2025 · 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).

168 emergency medicine physician records list a practice address in Loma Linda

They are 168 of the 4,863 NPPES records with a practice address in Loma Linda, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Waleed Aldadah, DOLoma Linda, CA 923501821728106
  2. Jacqueline Algara, MDLoma Linda, CA 923501295354249
  3. Thucan Bui, DOLoma Linda, CA 923501003493404
  4. Elizabeth Byrd, DOLoma Linda, CA 923501720660020
  5. Sarah Christian-Kopp, M.D.Loma Linda, CA 923501215261607
  6. Danny Le, DOLoma Linda, CA 923501205451440
  7. Edward LopezLoma Linda, CA 923501396487369
  8. Jamie MarliereLoma Linda, CA 923501699419853

Common questions

What is Robert Matthew Allison, M.B.B.S.'s NPI number?

Robert Matthew Allison, M.B.B.S.'s National Provider Identifier (NPI) is 1841721586, issued on Mar 24, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Robert Matthew Allison, M.B.B.S. located?

The NPPES record lists a practice address at 11234 Anderson St, Loma Linda, CA, 92350. Phone: (909) 558-4344. Providers update this record themselves, so call before visiting.

How can I verify Robert Matthew Allison, M.B.B.S.'s license?

NPPES lists California license number A175468, 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 Robert Matthew Allison, M.B.B.S. prescribe under Medicare Part D?

In 2024, Robert Matthew Allison, M.B.B.S. had 225 Medicare Part D claims for 158 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.