DR. SHAHID M. AHSAN M.D.
NPI 1740208180
Internal Medicine - Pulmonary Disease in Naperville, IL

Active since July 17, 2006PECOS EnrolledAccepts Medicare Assignment
100 SPALDING DR, NAPERVILLE, IL 60540(630) 355-8776(630) 355-7445 Get Directions Write a Review

NPPES record last updated: June 9, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Dec 12, 2025, May 24, 2023, Feb 10, 2023 and 2 more (5 updates tracked since 2019).

About Dr. Shahid M. Ahsan M.d. NPPES

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

DR. SHAHID M. AHSAN M.D. (NPI 1740208180) is an individual pulmonary disease provider in Naperville, Illinois, licensed in Illinois (036089112) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Edward Hospital, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1740208180
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameDR. SHAHID M. AHSANCredential: M.D.
Location Address100 SPALDING DRNaperville, IL 60540-6550
Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 570-2040 · Fax (847) 570-5315
Fax(630) 355-7445
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateJuly 17, 2006
Last NPPES UpdateJune 9, 20265 updates tracked since enumeration
NPPES CertifiedJune 9, 2026
NPI 1740208180 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
Licenses Licensed in IL · 036089112 Licensed in IN · 01050729
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.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 036089112 (IL), 01050729 (IN)
100 SPALDING DR, Naperville, IL 60540

Other Identifiers 1

Medicaid230237830IN

Accepted Insurance

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

Dr. Shahid M. Ahsan 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 ID941262810
PECOS Enrollment IDI20230606000271
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.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
485 services150 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
151 services113 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
145 services83 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
93 services93 patients
Test to determine lung volumes using sensors 94726
This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.
85 services84 patients
Test to examine how well the lungs exchange gases 94729
This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.
82 services81 patients

Hospital Affiliations CMS Care Compare

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

Edward Hospital

Acute Care Hospitals · Naperville, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140231
Location801 South WashingtonNaperville, IL 60540 · Du Page County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 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.

Referred Medical Equipment & Supplies CMS DME claims 31

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
7 suppliers298 claims299 services$36.81 avg. paid by Medicare
Tracheostomy care kit for established tracheostomy A4629
DME-Orthotic Devices · category DF000N
2 suppliers11 claims331 services$4.49 avg. paid by Medicare
Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003
DME-Other DME · category DE000N
6 suppliers42 claims85 services$1.44 avg. paid by Medicare
Administration set, with small volume nonfiltered pneumatic nebulizer, non-disposable A7005
DME-Other DME · category DE000N
3 suppliers12 claims12 services$15.22 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
11 suppliers205 claims205 services$89.89 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
11 suppliers222 claims581 services$35.27 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

Internal Medicine (Gastroenterology)
100 SPALDING DR, STE 208
NAPERVILLE, IL 60540
Internal Medicine (Gastroenterology)
100 SPALDING DR, STE 208
NAPERVILLE, IL 60540
Orthopaedic Surgery
100 SPALDING DR, 3RD FLOOR
NAPERVILLE, IL 60540
Obstetrics & Gynecology
100 SPALDING DR, SUITE 102
NAPERVILLE, IL 60540
Plastic Surgery
100 SPALDING DR, #204
NAPERVILLE, IL 60540
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
100 SPALDING DR, SUITE 108
NAPERVILLE, IL 60540
Pharmacist
100 SPALDING DR
NAPERVILLE, IL 60540
Internal Medicine (Cardiovascular Disease)
100 SPALDING DR, SUITE 212
NAPERVILLE, IL 60540

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shahid Ahsan's NPI number?

The NPI number for Shahid Ahsan is 1740208180. It was assigned to this individual provider in the NPPES registry on July 17, 2006.

Where is Shahid Ahsan located?

Shahid Ahsan practices at 100 Spalding Dr, Naperville, IL 60540. The listed phone number is (630) 355-8776.

What is Shahid Ahsan's specialty?

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

Is Shahid Ahsan enrolled in Medicare?

Yes. Shahid Ahsan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Shahid Ahsan accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health and CareSource list Shahid Ahsan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Shahid Ahsan affiliated with any hospitals?

According to CMS data, Shahid Ahsan is affiliated with Edward Hospital.

When was this NPI record last updated?

The NPPES record for Shahid Ahsan was last updated on June 9, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.