NPPES file of Aug 9, 2026

Jonathan Mark Erlich, M.D.

Gastroenterology Physician · Chicago, IL

Jonathan Mark Erlich, M.D. is a gastroenterology physician with a practice address in Chicago, Illinois, and NPI 1265796429, issued on Jul 2, 2012. Check the license (Illinois 036137164, 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
1265796429
Name
Jonathan Mark Erlich
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
036137164 IL
Self-reported in NPPES; status is on the state search
Practice location
7447 W Talcott Ave Ste 209, Chicago, IL 60631
Phone
(773) 631-2728
Enumerated
Jul 2, 2012
Record last updated
Sep 7, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150818003037); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 2012
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 7447 W Talcott Ave Ste 209

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

  1. Sarah Massey, NPPrimary Care Nurse Practitioner1881338895

Verify Jonathan Mark Erlich 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 036137164
    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

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2.0 times the Medicare Part D claims of the average gastroenterology physician in 2024

1,627 Medicare Part D claims for 622 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Jonathan Erlich1,627
  2. Specialty average811

Most prescribed

  1. Omeprazole540 claims
  2. Gavilyte-G219 claims
  3. Pantoprazole Sodium120 claims
  4. Dicyclomine Hcl90 claims
  5. Sutab53 claims
  6. Famotidine50 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: $2,450.39

135 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. Jonathan Erlich$2,450.39
  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 2 group practices

  1. Corr Health WI, SCChicago, IL
  2. GI Partners OF Illinois LLCChicago, IL

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

Jonathan Mark Erlich among 887 gastroenterology physician records in Illinois

Jonathan Mark Erlich, 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 2012, is newer than 69% of them.

  • NPI issued2012 · 69% of these records are older, 29% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2012 · median 2003 among the 643 with a school on file
  • Record last updated2020 · 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. Paul Fahrenbach, MDChicago, IL 606311699768416
  2. Stanislaw Maslanka, M.D.Chicago, IL 606311881676914
  3. Lakshmaiah Setty, MD SCChicago, IL 606301134203938
  4. Russell CohenChicago, IL 606371336201888
  5. Nolan Faust, MDChicago, IL 606251124511555
  6. Ira HananChicago, IL 606371184787608
  7. Robert KavittChicago, IL 606371205023611
  8. Aava Khatiwada, MDChicago, IL 606251073033353

Common questions

What is Jonathan Mark Erlich, M.D.'s NPI number?

Jonathan Mark Erlich, M.D.'s National Provider Identifier (NPI) is 1265796429, issued on Jul 2, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Mark Erlich, M.D. located?

The NPPES record lists a practice address at 7447 W Talcott Ave Ste 209, Chicago, IL, 60631. Phone: (773) 631-2728. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Mark Erlich, M.D.'s license?

NPPES lists Illinois license number 036137164, 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 Jonathan Mark Erlich, M.D. prescribe under Medicare Part D?

In 2024, Jonathan Mark Erlich, M.D. had 1,627 Medicare Part D claims for 622 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.