Dr. Mahwish Hussain Saim, MD
- Part D claims, 2024
- 45
- Hospital affiliations
- 6
- Industry payments
- $2,411
- Medical group
- 1
- State license
- 1
- Practice address
- 25 North Winfield Road, Winfield, IL 60190
- Practice phone
- Call (630) 682-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Saim's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mahwish Hussain Saim is a pulmonologist in Winfield, Illinois
Dr. Saim practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare.
Dr. Saim's NPI, 1649767997, was assigned on April 21, 2018. Dr. Saim holds Michigan license 5315251576.
- NPI
- 1649767997NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092052530
- NPI enumeration date
- April 21, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (630) 682-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mahwish Hussain Saim practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois
Dr. Saim's primary practice is Northwestern Medicine Central DuPage Hospital, at 25 North Winfield Road, Winfield, IL 60190 in Du Page County. The practice phone is (630) 682-1600.
- Northwestern Medicine Central DuPage Hospital25 North Winfield Road, Winfield, IL 60190 · Du Page CountyPhone(630) 682-1600
Source: Dmand AI Affiliation Data
Dr. Mahwish Hussain Saim is affiliated with 8 sites of care and 1 medical group
Dr. Saim's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dr. Saim is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Northwestern Medicine Regional Medical Group. Dmand AI also links Dr. Saim to 4 more hospitals, 1 breast imaging center and 1 clinical lab, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mahwish Hussain Saim's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Saim practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Central DuPage Hospital | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mahwish Hussain Saim is one of 517 pulmonologists in Illinois
Pulmonary disease is Dr. Saim's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Saim is licensed in Michigan.
Specialties and state licenses
- Pulmonary disease, MichiganPrimary
Pulmonologists near Dr. Saim
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mahwish Hussain Saim's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Saim's median patient age at 66, with 44% women.
Dr. Saim's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women44%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Mahwish Hussain Saim wrote 45 Medicare Part D claims in 2024
In 2024, Dr. Saim wrote 45 Medicare Part D claims for 22 patients. 47% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $3,501 in total drug cost. In 2022, CMS named 27 claims across 2 drugs.
Dr. Saim's Part D claims by kind of drug, 2024
- Generic21 claims47%
- Brand-name24 claims53%
Dr. Saim's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 272023: 257%
Drugs named by CMS: 2 in 2023, 2 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mahwish Hussain Saim offers telehealth to Medicare patients
Dr. Saim accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Saim as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mahwish Hussain Saim received $2,411 in industry payments from 2022 to 2025
CMS Open Payments shows 33 general payments to Dr. Saim from 7 drug and device companies from 2022 to 2025. Travel and lodging make up the largest share, 75% of the total. Olympus Corporation of the Americas paid the most, $1,258.
General payments to Dr. Saim by program year, 2022 to 2025
General payments to Dr. Saim by kind, 2022 to 2025
- Travel and lodging$1,80875%
- Food and beverage$60325%
Companies that paid Dr. Saim the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mahwish Hussain Saim's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mahwish Hussain Saim
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mahwish Hussain Saim's NPI number?
Dr. Mahwish Hussain Saim's NPI number is 1649767997. It was assigned on April 21, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Mahwish Hussain Saim?
Dr. Mahwish Hussain Saim is a pulmonologist in Winfield, Illinois. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Mahwish Hussain Saim practice?
Dr. Saim practices at 25 North Winfield Road, Winfield, IL 60190. Dr. Saim's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Saim to 4 hospitals, 1 breast imaging center and 1 clinical lab.
What is Dr. Mahwish Hussain Saim's office phone number?
The practice phone on file for Dr. Saim is (630) 682-1600.
What is Dr. Mahwish Hussain Saim's medical license number?
Dr. Saim holds Michigan license 5315251576.
Which hospitals is Dr. Mahwish Hussain Saim affiliated with?
Dr. Saim practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois. Dr. Saim is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. Dmand AI links Dr. Saim to 4 more hospitals.
What medical group is Dr. Mahwish Hussain Saim part of?
Dr. Saim is linked to Northwestern Medicine Regional Medical Group.
Does Dr. Mahwish Hussain Saim accept Medicare?
Yes. CMS lists Dr. Saim as accepting Medicare assignment.
Does Dr. Mahwish Hussain Saim offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Saim as offering telehealth services.
What drugs does Dr. Mahwish Hussain Saim prescribe most?
In 2023 Medicare Part D data, Dr. Saim's most prescribed drugs by claims were Albuterol Sulfate Hfa and Varenicline Tartrate.
Has Dr. Mahwish Hussain Saim received payments from drug or device companies?
CMS Open Payments shows $2,411 in general payments to Dr. Saim from 7 companies from 2022 to 2025. The largest total came from Olympus Corporation of the Americas.
How long has Dr. Mahwish Hussain Saim been practicing?
Dr. Saim graduated from medical school in 2013, 13 years ago.
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