NPPES file of Aug 9, 2026

Katherine Elizabeth Bourbeau-Medinilla, MD

Internal Medicine Physician · Colton, CA

Katherine Elizabeth Bourbeau-Medinilla, MD is an internal medicine physician with a practice address in Colton, California, and NPI 1790245116, issued on Mar 21, 2019. Check the license (California 178058, 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
1790245116
Name
Katherine Elizabeth Bourbeau-Medinilla
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
178058 CA
PTL39 CA
Self-reported in NPPES; status is on the state search
Practice location
400 N Pepper Ave, Colton, CA 92324
Phone
(909) 580-1000
Enumerated
Mar 21, 2019
Record last updated
Jun 27, 2022
Medicare enrollment
Enrolled (PECOS I20220705001289); 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 Katherine Elizabeth Bourbeau-Medinilla in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 178058
    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

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29% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,261 Medicare Part D claims for 197 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 84 claims were for opioids.

  1. Katherine Bourbeau-Medinilla2,261
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium111 claims
  2. Ozempic84 claims
  3. Gabapentin77 claims
  4. Metformin Hcl68 claims
  5. Hydrocodone-Acetaminophen66 claims
  6. Amlodipine Besylate53 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. Clinic Services OF California Medical Group IncColton, CA

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

Katherine Elizabeth Bourbeau-Medinilla among 17,696 internal medicine physician records in California

Katherine Elizabeth Bourbeau-Medinilla, 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 2019, is newer than 86% of them.

  • NPI issued2019 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2019 · median 2004 among the 11,065 with a school on file
  • Record last updated2022 · 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 Katherine Elizabeth Bourbeau-Medinilla, MD's NPI number?

Katherine Elizabeth Bourbeau-Medinilla, MD's National Provider Identifier (NPI) is 1790245116, issued on Mar 21, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Elizabeth Bourbeau-Medinilla, MD located?

The NPPES record lists a practice address at 400 N Pepper Ave, Colton, CA, 92324. Phone: (909) 580-1000. Providers update this record themselves, so call before visiting.

How can I verify Katherine Elizabeth Bourbeau-Medinilla, MD's license?

NPPES lists California license number 178058, 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 Katherine Elizabeth Bourbeau-Medinilla, MD prescribe under Medicare Part D?

In 2024, Katherine Elizabeth Bourbeau-Medinilla, MD had 2,261 Medicare Part D claims for 197 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.