NPPES file of Aug 9, 2026

Roy Oomen Mathew, M.D.

Nephrology Physician · Loma Linda, CA

Roy Oomen Mathew, M.D. is a nephrology physician with a practice address in Loma Linda, California, and NPI 1740298033, issued on Aug 3, 2006. Check the license (California A89504, 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
1740298033
Name
Roy Oomen Mathew
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
A89504 CA
A231100 NY
Self-reported in NPPES; status is on the state search
Practice location
11201 Benton St, Loma Linda, CA 92357
Phone
(909) 825-7084
Enumerated
Aug 3, 2006
Record last updated
Jan 29, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 11201 Benton St

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

  1. Arlene AbarcaCritical Care Medicine Registered Nurse1437073467
  2. Antonio Abiog, M.D.Surgery Physician1952492522
  3. Hesham AbugufaDentist1538875794
  4. Matthew Adams, DPTPhysical Therapist1184786071
  5. Susann Adams, LCSWClinical Social Worker1295849362
  6. Raychelle Addo, LCSWClinical Social Worker1033307251

Verify Roy Oomen Mathew in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A89504
    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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Industry payments in 2024: $728.24

2 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Roy Mathew$728.24
  2. Specialty average$3,091.37

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

Roy Oomen Mathew among 1,468 nephrology physician records in California

Roy Oomen Mathew, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileNo · 77% of these records are
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Annie HongLoma Linda, CA 923571215348776
  2. Navin Jaipaul, MD, MHSLoma Linda, CA 923571588675359
  3. James McMillan, M.D.Loma Linda, CA 923571700988219
  4. Amir Abdi Pour, MDLoma Linda, CA 923541912187477
  5. Afshin Ahoubim, M.DLoma Linda, CA 923541932513488
  6. Sarah Azer, MDLoma Linda, CA 923541710508346
  7. Jasjot Bhullar, M.D.Loma Linda, CA 923541366602229
  8. Chidinma EnyinnaLoma Linda, CA 923541487031175

Common questions

What is Roy Oomen Mathew, M.D.'s NPI number?

Roy Oomen Mathew, M.D.'s National Provider Identifier (NPI) is 1740298033, issued on Aug 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Roy Oomen Mathew, M.D. located?

The NPPES record lists a practice address at 11201 Benton St, Loma Linda, CA, 92357. Phone: (909) 825-7084. Providers update this record themselves, so call before visiting.

How can I verify Roy Oomen Mathew, M.D.'s license?

NPPES lists California license number A89504, 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.

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.