Mahwish Hussain Saim, M.D.
Pulmonary Disease Physician · Winfield, IL
Mahwish Hussain Saim, M.D. is a pulmonary disease physician with a practice address in Winfield, Illinois, and NPI 1649767997, issued on Apr 21, 2018. Check the license (Illinois 036174037, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mahwish Hussain Saim
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License numbers
- 036174037 IL
5315251576 MI
Self-reported in NPPES; status is on the state search - Practice location
- 25 N Winfield RD Ste 204, Winfield, IL 60190
- Phone
- (630) 232-0202
- Enumerated
- Apr 21, 2018
- Record last updated
- Sep 23, 2025
- Fax
- (630) 690-2293
- Medicare enrollment
- Enrolled (PECOS I20250717000711); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 617 in Illinois → Look up another NPI →
Also registered at 25 N Winfield RD Ste 204
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nimra Alvi, MDPediatric Sleep Medicine Physician1336670868
- Linda Chan, M.D.Pulmonary Disease Physician1235187253
- David Delapp, DOPulmonary Disease Physician1366860421
- Reeti Greenwald, MDSleep Medicine (Psychiatry & Neurology) Physician1649690827
- Amanda Law, APRN, CNPNurse Practitioner1558380634
- Steven Pearson, M.D.Pulmonary Disease Physician1144609256
Verify Mahwish Hussain Saim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036174037Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
45 Medicare Part D claims for 22 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of 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: $34.04
1 payment: food and beverage; the largest payer was Tactile Systems Technology Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Central Dupage Physician GroupWinfield, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mahwish Hussain Saim among 617 pulmonary disease physician records in Illinois
Mahwish Hussain Saim, M.D. is one of 617 pulmonary disease physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 88% of them.
- NPI issued2018 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2013 · median 2005 among the 444 with a school on file
- Record last updated2025 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 pulmonary disease physician records list a practice address in Winfield
They are 11 of the 778 NPPES records with a practice address in Winfield, and 617 pulmonary disease physician records in Illinois.
All 617 in Illinois → Every provider in Winfield → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Linda Chan, M.D.Winfield, IL 601901235187253
- David Delapp, DOWinfield, IL 601901366860421
- Andrew Korcek, MDWinfield, IL 601901588630495
- Linda Lam, DOWinfield, IL 601901700839354
- Timothy McGee, DOWinfield, IL 601901023061116
- Crystal Otteman, DOWinfield, IL 601901174578629
- Steven Pearson, M.D.Winfield, IL 601901144609256
- Benjamin Seides, MD, MPHWinfield, IL 601901770648073
Common questions
What is Mahwish Hussain Saim, M.D.'s NPI number?
Mahwish Hussain Saim, M.D.'s National Provider Identifier (NPI) is 1649767997, issued on Apr 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mahwish Hussain Saim, M.D. located?
The NPPES record lists a practice address at 25 N Winfield RD Ste 204, Winfield, IL, 60190. Phone: (630) 232-0202. Providers update this record themselves, so call before visiting.
How can I verify Mahwish Hussain Saim, M.D.'s license?
NPPES lists Illinois license number 036174037, 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 Mahwish Hussain Saim, M.D. prescribe under Medicare Part D?
In 2024, Mahwish Hussain Saim, M.D. had 45 Medicare Part D claims for 22 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.