NPPES file of Aug 9, 2026

Michael G. Close, M.D.

Internal Medicine Physician · Chicago, IL

Michael G. Close, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1992893184, issued on Oct 11, 2006. Check the license (Illinois 036086466434341568, 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
1992893184
Name
Michael G. Close
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036086466434341568 IL
Self-reported in NPPES; status is on the state search
Practice location
5137 N Broadway St, Chicago, IL 60640
Phone
(773) 243-0010
Enumerated
Oct 11, 2006
Record last updated
Jun 5, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(773) 243-0015
Medicaid ID
036086407 IL
Medicare enrollment
Enrolled (PECOS I20060505000663); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 1992
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 5137 N Broadway St

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

  1. Rene Velazco, MDFamily Medicine Physician1245257955

Verify Michael G. Close 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 036086466434341568
    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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83% fewer Medicare Part D claims than the average internal medicine physician in 2024

537 Medicare Part D claims for 87 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Michael Close537
  2. Specialty average3,176

Most prescribed

  1. Metoprolol Succinate41 claims
  2. Amlodipine Besylate23 claims
  3. Metformin Hcl23 claims
  4. Lisinopril22 claims
  5. Atorvastatin Calcium20 claims
  6. Levothyroxine Sodium18 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.

Bills Medicare through one group practice

  1. Fullerton Kimball Medical Group SCChicago, IL

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

Michael G. Close among 7,238 internal medicine physician records in Illinois

Michael G. Close, M.D. 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
  • Graduated1992 · median 2003 among the 3,580 with a school on file
  • Record last updated2014 · 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. Maher Al-Koubaytari, M.D.Chicago, IL 606401437124419
  2. Shehzad Ali, M.D.Chicago, IL 606401548233117
  3. Susan Alt, MDChicago, IL 606401255384277
  4. Emily Chatskis, MDChicago, IL 606401790771434
  5. Lorrie Elliott, M.D.Chicago, IL 606401265474191
  6. Aleksandra Ivanovic, MDChicago, IL 606401477546711
  7. Christopher Konstantelos, M.DChicago, IL 606401952330243
  8. Sean Le, M.D.Chicago, IL 606401578552915

Common questions

What is Michael G. Close, M.D.'s NPI number?

Michael G. Close, M.D.'s National Provider Identifier (NPI) is 1992893184, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael G. Close, M.D. located?

The NPPES record lists a practice address at 5137 N Broadway St, Chicago, IL, 60640. Phone: (773) 243-0010. Providers update this record themselves, so call before visiting.

How can I verify Michael G. Close, M.D.'s license?

NPPES lists Illinois license number 036086466434341568, 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 Michael G. Close, M.D. prescribe under Medicare Part D?

In 2024, Michael G. Close, M.D. had 537 Medicare Part D claims for 87 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.