NPPES file of Aug 9, 2026

Mitchell Bernsen, M.D.

Gastroenterology Physician · Arlington Heights, IL

Mitchell Bernsen, M.D. is a gastroenterology physician with a practice address in Arlington Heights, Illinois, and NPI 1275523631, issued on Oct 26, 2005. Check the license (Illinois 036-084785, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275523631
Name
Mitchell Bernsen
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
036-084785 IL
Self-reported in NPPES; status is on the state search
Practice location
1415 S Arlington Heights RD, Arlington Heights, IL 60005
Phone
(847) 439-1005
Enumerated
Oct 26, 2005
Record last updated
Feb 19, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(847) 439-7555
Medicaid ID
036-084785 IL
Medicare enrollment
Enrolled (PECOS I20100722000517); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1990
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 1415 S Arlington Heights RD

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

  1. Jennifer Cahill, M.D.Gastroenterology Physician1952643405
  2. Bruce Greenberg, M.D.Gastroenterology Physician1104817279
  3. Mitchell Kaplan, M.D.Gastroenterology Physician1760536130
  4. David Kim, M.D.Gastroenterology Physician1730170804
  5. Joel Lattin, D.O.Gastroenterology Physician1437149895
  6. Samantha Liem, NPAdult Health Nurse Practitioner1275979312

Verify Mitchell Bernsen 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 036-084785
    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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23% more Medicare Part D claims than the average gastroenterology physician in 2024

1,000 Medicare Part D claims for 470 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Mitchell Bernsen1,000
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium359 claims
  2. Sod Sulf-Potass Sulf-Mag Sulf182 claims
  3. Gavilyte-C84 claims
  4. Omeprazole62 claims
  5. Mesalamine34 claims
  6. Balsalazide Disodium30 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 85.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score73.2
  2. Costout of 100 · 30%78.0
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $2,877.67

116 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mitchell Bernsen$2,877.67
  2. Specialty average$5,015.95

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. Illinois Gastroenterology Group LLCArlington Heights, IL

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

Mitchell Bernsen among 887 gastroenterology physician records in Illinois

Mitchell Bernsen, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1990 · median 2003 among the 643 with a school on file
  • Record last updated2015 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Illinois

There are 887 gastroenterology physician records in Illinois.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Jennifer Cahill, M.D.Arlington Heights, IL 600051952643405
  2. Bruce Greenberg, M.D.Arlington Heights, IL 600051104817279
  3. David Jandura, MDArlington Heights, IL 600051992199947
  4. Daniel Jonas, M.D.Arlington Heights, IL 600051720519598
  5. Mitchell Kaplan, M.D.Arlington Heights, IL 600051760536130
  6. David Kim, M.D.Arlington Heights, IL 600051730170804
  7. Joel Lattin, D.O.Arlington Heights, IL 600051437149895
  8. Willis Parsons, M.D.Arlington Heights, IL 600051972578698

Common questions

What is Mitchell Bernsen, M.D.'s NPI number?

Mitchell Bernsen, M.D.'s National Provider Identifier (NPI) is 1275523631, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mitchell Bernsen, M.D. located?

The NPPES record lists a practice address at 1415 S Arlington Heights RD, Arlington Heights, IL, 60005. Phone: (847) 439-1005. Providers update this record themselves, so call before visiting.

How can I verify Mitchell Bernsen, M.D.'s license?

NPPES lists Illinois license number 036-084785, 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 Mitchell Bernsen, M.D. prescribe under Medicare Part D?

In 2024, Mitchell Bernsen, M.D. had 1,000 Medicare Part D claims for 470 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Mitchell Bernsen, M.D.'s MIPS final score?

The 2023 MIPS final score is 85.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.