NPPES file of Aug 9, 2026

Ireny I. Ibrahim, MD

Internal Medicine Physician · Colton, CA

Ireny I. Ibrahim, MD is an internal medicine physician with a practice address in Colton, California, and NPI 1811944598, issued on May 28, 2006. Check the license (California A64541, 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
1811944598
Name
Ireny I. Ibrahim
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A64541 CA
Self-reported in NPPES; status is on the state search
Practice location
1300 E Cooley Dr, Colton, CA 92324
Phone
(909) 370-4179
Enumerated
May 28, 2006
Record last updated
Dec 17, 2025
Fax
(909) 796-4158
Medicaid ID
00A645410 CA
Medicare enrollment
Enrolled (PECOS I20100406000596); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 1994
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 1300 E Cooley Dr

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

  1. Amandip Birdi, D.O.Family Medicine Physician1639523772
  2. Sarah Contreras, FNPFamily Nurse Practitioner1871895508
  3. Calvin Duong, M.D.Internal Medicine Physician1184646119
  4. Alkevin GacuyaFamily Nurse Practitioner1972204592
  5. Glen Gaerte, O.D.Optometrist1003855172
  6. Sarah Gomez, MDFamily Medicine Physician1760904924

Verify Ireny I. Ibrahim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A64541
    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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54% more Medicare Part D claims than the average internal medicine physician in 2024

4,901 Medicare Part D claims for 393 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 305 claims were for opioids.

  1. Ireny Ibrahim4,901
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium214 claims
  2. Atorvastatin Calcium205 claims
  3. Hydrocodone-Acetaminophen160 claims
  4. Losartan Potassium151 claims
  5. Lisinopril145 claims
  6. Amlodipine Besylate134 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.

Bills Medicare through one group practice

  1. Beaver Medical Group P CColton, CA

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

Ireny I. Ibrahim among 17,696 internal medicine physician records in California

Ireny I. Ibrahim, 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1994 · 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. Cecilia Katz, MDColton, CA 923241376585349
  8. Mohammad Shahid Khan, MDColton, CA 923241477589257

Common questions

What is Ireny I. Ibrahim, MD's NPI number?

Ireny I. Ibrahim, MD's National Provider Identifier (NPI) is 1811944598, issued on May 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ireny I. Ibrahim, MD located?

The NPPES record lists a practice address at 1300 E Cooley Dr, Colton, CA, 92324. Phone: (909) 370-4179. Providers update this record themselves, so call before visiting.

How can I verify Ireny I. Ibrahim, MD's license?

NPPES lists California license number A64541, 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 Ireny I. Ibrahim, MD prescribe under Medicare Part D?

In 2024, Ireny I. Ibrahim, MD had 4,901 Medicare Part D claims for 393 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.