NPPES file of Aug 9, 2026

Mujtaba Hussain, MBBS

Internal Medicine Physician · Oak Park, IL

Mujtaba Hussain, MBBS is an internal medicine physician with a practice address in Oak Park, Illinois, and NPI 1255993309, issued on Jun 28, 2019. Check the license (Illinois 161327, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255993309
Name
Mujtaba Hussain
Credential
MBBS
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
161327 IL
Self-reported in NPPES; status is on the state search
Practice location
101 Madison St Ste 300, Oak Park, IL 60302
Phone
(708) 486-2700
Enumerated
Jun 28, 2019
Record last updated
Jan 13, 2023
Fax
(708) 486-2702
Medicare enrollment
Enrolled (PECOS I20221005001787); accepts Medicare assignment
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 101 Madison St Ste 300

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

  1. Anthony Abadir, MDPsychiatry Physician1295312551
  2. Rebecca Arenson, DNP, FNP-BCFamily Medicine Physician1881272599
  3. Teresita BernabeAdult Health Nurse Practitioner1437963584
  4. Farid Gholitabar, M.D.Cardiovascular Disease Physician1801278650
  5. Dheeraj Mahajan, M.D.Internal Medicine Physician1831133693
  6. Renu Mahajan, MDHospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician1932311883

Verify Mujtaba Hussain 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 161327
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Cimpar SCOak Park, IL

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

62 internal medicine physician records list a practice address in Oak Park

They are 62 of the 2,307 NPPES records with a practice address in Oak Park, and 7,238 internal medicine physician records in Illinois.

Other internal medicine physician records in Illinois

  1. Peter Abadeer, D.O.Bloomington, IL1760469522
  2. Motaz Abas, MDPeoria, IL1215510201
  3. Elias Abate, M.D.Chicago, IL1336712199
  4. Maliha Abbas, D.O.Chicago, IL1174963920
  5. Zareena Abbas, MDChicago, IL1427078872
  6. Abu Abbasi, MDChicago, IL1083243877
  7. Ayesha Abbasi, MDChicago, IL1376216705
  8. Khalda Abbasi, MDNaperville, IL1487705240
  9. Elmer Abbo, MDBurr Ridge, IL1710048541
  10. Paul Abbo, M.D.River Forest, IL1083693378

Common questions

What is Mujtaba Hussain, MBBS's NPI number?

Mujtaba Hussain, MBBS's National Provider Identifier (NPI) is 1255993309, issued on Jun 28, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Mujtaba Hussain, MBBS located?

The NPPES record lists a practice address at 101 Madison St Ste 300, Oak Park, IL, 60302. Phone: (708) 486-2700. Providers update this record themselves, so call before visiting.

How can I verify Mujtaba Hussain, MBBS's license?

NPPES lists Illinois license number 161327, 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.

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.