MAHWISH HUSSAIN SAIM M.D.
NPI 1649767997
Internal Medicine - Pulmonary Disease in Winfield, IL

Q: What is Mahwish Saim's NPI number?

The NPI number for Mahwish Saim is 1649767997. It was assigned to this individual provider in the NPPES registry on April 21, 2018. The provider is also known as Mahwish Hussain M.D..

Q: What is Mahwish Saim's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Mahwish Saim was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 21, 2018PECOS EnrolledAccepts Medicare Assignment

25 N WINFIELD RD STE 204, WINFIELD, IL 60190(630) 232-0202(630) 690-2293 Get Directions Write a Review

NPPES record last updated: September 23, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 9, 2025, Jul 16, 2024, Jun 7, 2024 and 4 more (7 updates tracked since 2018).

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About Mahwish Hussain Saim M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MAHWISH HUSSAIN SAIM M.D. (NPI 1649767997) is an individual pulmonary disease provider in Winfield, Illinois, licensed in Illinois (036174037) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1649767997

Entity TypeIndividualFemale

Primary Taxonomy207RP1001X

Provider Legal NameMAHWISH HUSSAIN SAIMCredential: M.D.

Location Address25 N WINFIELD RD STE 204Winfield, IL 60190-1379

Mailing Address25 N Winfield Rd Ste 204Winfield, IL 60190-1379 · (630) 232-0202 · Fax (630) 690-2293

Phone(630) 232-0202

Fax(630) 690-2293

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateApril 21, 2018

Last NPPES UpdateSeptember 23, 20257 updates tracked since enumeration

NPPES CertifiedSeptember 23, 2025

✔ NPI 1649767997 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

Licenses✔ Licensed in IL · 036174037✔ Licensed in MI · 5315251576

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

25 N WINFIELD RD STE 204, Winfield, IL 60190

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Other Names 1

Former Name (1)Mahwish Hussain M.d.

Secondary Practice Locations 2

Location 1636 Raymond Dr Ste 204Naperville, IL 60563-9791 · Phone (630) 232-0202 · Fax (630) 690-2293

Location 2302 Randall Rd Ste 105Geneva, IL 60134-4219 · Phone (630) 232-0202 · Fax (630) 232-9784

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mahwish Hussain Saim M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5092052530

PECOS Enrollment IDI20250717000711

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwestern Medicine Delnor Community Hospital

Acute Care Hospitals · Geneva, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140211

Location300 Randall RdGeneva, IL 60134 · Kane County

Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140242

Location25 North Winfield RoadWinfield, IL 60190 · Du Page County

Emergency services Birthing friendly

Northwestern Medicine Kishwaukee Hospital

Acute Care Hospitals · Dekalb, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140286

LocationOne Kish Hospital DriveDekalb, IL 60115 · De Kalb County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60190 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOYCE L. SMITH APN

Nurse Practitioner