NPPES file of Aug 9, 2026

Gregory Trevino, MD

Internal Medicine Physician · Naperville, IL

Gregory Trevino, MD is an internal medicine physician with a practice address in Naperville, Illinois, and NPI 1023078631, issued on Mar 27, 2006. Check the license (Illinois 036099890, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1023078631
Name
Gregory Trevino
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036099890 IL
Self-reported in NPPES; status is on the state search
Practice location
608 S Washington St Ste 201, Naperville, IL 60540
Phone
(630) 717-2630
Enumerated
Mar 27, 2006
Record last updated
Jun 15, 2022
Medicaid ID
036099890 IL
Medicare enrollment
Enrolled (PECOS I20040124000276); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1996
Telehealth
Offers telehealth (CMS)
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 608 S Washington St Ste 201

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

  1. Krishna Bathina, MDInternal Medicine Physician1265548093
  2. Loveena Bouri, MDInternal Medicine Physician1700827656
  3. Maleeha Hashmi-Basha, MDInternal Medicine Physician1528054483
  4. Eryn Jackson, APNNurse Practitioner1184518870
  5. Dipali Patel, PAPhysician Assistant1568317949
  6. Anna Wright, FNP-CNurse Practitioner1861261653

Verify Gregory Trevino in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036099890
    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 Illinois 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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2.6 times the Medicare Part D claims of the average internal medicine physician in 2024

8,162 Medicare Part D claims for 748 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 187 claims were for opioids.

  1. Gregory Trevino8,162
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium771 claims
  2. Losartan Potassium458 claims
  3. Amlodipine Besylate422 claims
  4. Levothyroxine Sodium412 claims
  5. Lisinopril401 claims
  6. Rosuvastatin Calcium353 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: $712.84

33 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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. Gregory Trevino$712.84
  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 one group practice

  1. Dupage Medical Group LtdNaperville, IL

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

Gregory Trevino among 7,238 internal medicine physician records in Illinois

Gregory Trevino, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1996 · median 2003 among the 3,580 with a school on file
  • Record last updated2022 · 47% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

75 internal medicine physician records list a practice address in Naperville

They are 75 of the 4,634 NPPES records with a practice address in Naperville, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Tina Bhargava, M.D.Naperville, IL 605401699761783
  2. Loveena Bouri, MDNaperville, IL 605401700827656
  3. Cathleen Cregier, APNNaperville, IL 605401245227271
  4. Jason Dy, MDNaperville, IL 605401396710265
  5. Naira Hashmi, MDNaperville, IL 605401164418729
  6. Maleeha Hashmi-Basha, MDNaperville, IL 605401528054483
  7. Johara Hassan, MDNaperville, IL 605401568417301
  8. Jerome Hong, MDNaperville, IL 605401336115823

Common questions

What is Gregory Trevino, MD's NPI number?

Gregory Trevino, MD's National Provider Identifier (NPI) is 1023078631, issued on Mar 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Trevino, MD located?

The NPPES record lists a practice address at 608 S Washington St Ste 201, Naperville, IL, 60540. Phone: (630) 717-2630. Providers update this record themselves, so call before visiting.

How can I verify Gregory Trevino, MD's license?

NPPES lists Illinois license number 036099890, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory Trevino, MD prescribe under Medicare Part D?

In 2024, Gregory Trevino, MD had 8,162 Medicare Part D claims for 748 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.