NPPES file of Aug 9, 2026

Marcie Ann Claybon, MD

Internal Medicine Physician · Chicago, IL

Marcie Ann Claybon, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1831344373, issued on Nov 25, 2008. Check the license (Illinois 036.138794, 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
1831344373
Name
Marcie Ann Claybon
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036.138794 IL
Self-reported in NPPES; status is on the state search
Practice location
600 W. Chicago Ave., Chicago, IL 60654
Phone
(312) 625-0845
Enumerated
Nov 25, 2008
Record last updated
Nov 5, 2020 (not updated in 6 years: call before relying on the address or phone)
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 Marcie Ann Claybon 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 036.138794
    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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92% fewer Medicare Part D claims than the average internal medicine physician in 2024

254 Medicare Part D claims for 19 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Marcie Claybon254
  2. Specialty average3,176

Most prescribed

  1. Zolpidem Tartrate21 claims
  2. Losartan Potassium18 claims
  3. Atorvastatin Calcium17 claims
  4. Trazodone Hcl13 claims
  5. Ozempic12 claims
  6. Amlodipine Besylate11 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.

Marcie Ann Claybon among 7,238 internal medicine physician records in Illinois

Marcie Ann Claybon, 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 2008, is newer than 45% of them.

  • NPI issued2008 · 45% of these records are older, 51% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2020 · 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).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Carolyn Cao, MDChicago, IL 606541598227068
  2. Mehbub Kapadia, M.D.Chicago, IL 606541558584391
  3. Sabah Khan, M.D.Chicago, IL 606541992778534
  4. Mehwash Naseem, MDChicago, IL 606541528405677
  5. Paul Rockey, M.D.Chicago, IL 606541689920316
  6. Irene Silva, MDChicago, IL 606541114910692
  7. Divya VenkatChicago, IL 606541750944831
  8. Argiro Zofakis, M.D.Chicago, IL 606541124038815

Common questions

What is Marcie Ann Claybon, MD's NPI number?

Marcie Ann Claybon, MD's National Provider Identifier (NPI) is 1831344373, issued on Nov 25, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Marcie Ann Claybon, MD located?

The NPPES record lists a practice address at 600 W. Chicago Ave., Chicago, IL, 60654. Phone: (312) 625-0845. Providers update this record themselves, so call before visiting.

How can I verify Marcie Ann Claybon, MD's license?

NPPES lists Illinois license number 036.138794, 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 Marcie Ann Claybon, MD prescribe under Medicare Part D?

In 2024, Marcie Ann Claybon, MD had 254 Medicare Part D claims for 19 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.