NPPES file of Aug 9, 2026

Catherine Johnson, MD FACEP, ABOM, MSCP

Obesity Medicine (Preventive Medicine) Physician · Clarendon Hills, IL

Catherine Johnson, MD FACEP, ABOM, MSCP is an obesity medicine (preventive medicine) physician with a practice address in Clarendon Hills, Illinois, and NPI 1083609218, issued on Sep 14, 2005. Check the license (Illinois 36107532, 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
1083609218
Name
Catherine Johnson
Credential
MD FACEP, ABOM, MSCP
Primary taxonomy
Obesity Medicine (Preventive Medicine) Physician 2083B0002X
License numbers
36107532 IL
036107532 IL
01056490 IN
Self-reported in NPPES; status is on the state search
Practice location
23 Walker Ave, Clarendon Hills, IL 60514
Phone
(312) 343-4342
Enumerated
Sep 14, 2005
Record last updated
Apr 14, 2025
Fax
(312) 736-9556
Medicaid ID
200430170 IN
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Catherine Johnson 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 36107532
    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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64% fewer Medicare Part D claims than the average obesity medicine (preventive medicine) physician in 2024

380 Medicare Part D claims for 28 beneficiaries, against an average of 1,045 among the 68 providers of this specialty who prescribed in Part D.

  1. Catherine Johnson380
  2. Specialty average1,045

Most prescribed

  1. Mounjaro71 claims
  2. Metformin Hcl Er37 claims
  3. Levothyroxine Sodium23 claims
  4. Progesterone22 claims
  5. Allopurinol21 claims
  6. Repatha Sureclick20 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: $35.23

2 payments; by number, the most common kind was food and beverage; the largest payer was Cardiva Medical, Inc. The 40 providers of this specialty with any payment received $7,485.63 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Catherine Johnson$35.23
  2. Specialty average$7,485.63

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Obesity Medicine (Preventive Medicine) Physician providers in Illinois

There are 6 obesity medicine (preventive medicine) physician records in Illinois.

The 5 obesity medicine (preventive medicine) physician records with the nearest ZIP codes

  1. Esmilkrys Ramirez, M.D.Chicago, IL 606411083880546
  2. Finisa Rosenzweig, M.D.Chicago, IL 606571174781413
  3. Manali Patel, MDBloomingdale, IL 601081770825853
  4. Darshan Patel, MDDeer Park, IL 600101376920264
  5. Lyndsay Hoffman, FNPArlington Heights, IL 600041518647593

Common questions

What is Catherine Johnson, MD FACEP, ABOM, MSCP's NPI number?

Catherine Johnson, MD FACEP, ABOM, MSCP's National Provider Identifier (NPI) is 1083609218, issued on Sep 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Johnson, MD FACEP, ABOM, MSCP located?

The NPPES record lists a practice address at 23 Walker Ave, Clarendon Hills, IL, 60514. Phone: (312) 343-4342. Providers update this record themselves, so call before visiting.

How can I verify Catherine Johnson, MD FACEP, ABOM, MSCP's license?

NPPES lists Illinois license number 36107532, 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 Catherine Johnson, MD FACEP, ABOM, MSCP prescribe under Medicare Part D?

In 2024, Catherine Johnson, MD FACEP, ABOM, MSCP had 380 Medicare Part D claims for 28 beneficiaries; the average among obesity medicine (preventive medicine) physician prescribers was 1,045. 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.