NPPES file of Aug 9, 2026

Barbara B. Loeb, MD

Internal Medicine Physician · Downers Grove, IL

Barbara B. Loeb, MD is an internal medicine physician with a practice address in Downers Grove, Illinois, and NPI 1619976396, issued on Jul 15, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619976396
Name
Barbara B. Loeb
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
3825 Highland Ave, Downers Grove, IL 60515
Phone
(630) 963-9667
Enumerated
Jul 15, 2005
Record last updated
Feb 7, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(630) 963-9936
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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8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →

Also registered at 3825 Highland Ave

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

  1. Mani Akkineni, M.D.Specialist1467456186
  2. Medha Amin, MDObstetrics Physician1912197534
  3. Teresita Avila, M.D.Specialist1386649317
  4. Lara Bakhos, M.D.Cardiovascular Disease Physician1730336652
  5. Jennifer Balash, M.D.Obstetrics & Gynecology Physician1487881025
  6. Shamita Bansore, MDObstetrics & Gynecology Physician1700813771

Verify Barbara B. Loeb in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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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Barbara B. Loeb among 7,238 internal medicine physician records in Illinois

Barbara B. Loeb, 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 not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileNo · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2008 · 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).

33 internal medicine physician records list a practice address in Downers Grove

They are 33 of the 1,899 NPPES records with a practice address in Downers Grove, and 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 7,238 in Illinois → Every provider in Downers Grove → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Susan Badri, M.D.Downers Grove, IL 605151912985722
  2. Gigi Ip, MDDowners Grove, IL 605151376519777
  3. Robert King, MDDowners Grove, IL 605151104892041
  4. David Labotka, MDDowners Grove, IL 605151205803178
  5. Monica Martin, MDDowners Grove, IL 605151881693315
  6. Richard McPartlin, MDDowners Grove, IL 605151700853140
  7. Maziyar Mirhosseini, M.D.Downers Grove, IL 605151508870809
  8. Steven Schmitz, MDDowners Grove, IL 605151720056302

Common questions

What is Barbara B. Loeb, MD's NPI number?

Barbara B. Loeb, MD's National Provider Identifier (NPI) is 1619976396, issued on Jul 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Barbara B. Loeb, MD located?

The NPPES record lists a practice address at 3825 Highland Ave, Downers Grove, IL, 60515. Phone: (630) 963-9667. Providers update this record themselves, so call before visiting.

How can I verify Barbara B. Loeb, MD's license?

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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.