Individual provider Active NPI

Shahid M. Ahsan, M.D.

  • Pulmonary Disease Physician
  • Naperville, IL
National Provider Identifier
1740208180
Registry record updated Sep 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pulmonary Disease PhysicianTaxonomy code 207RP1001X
License
036089112 Issued in IL
Practice address
100 Spalding Dr
Naperville, IL 60540-6550
Phone
(630) 355-8776
Fax
(630) 355-7445
NPI assigned
Jul 17, 2006
Last updated
Sep 29, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 29, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Critical Care Medicine (Internal Medicine) Physician 207RC0200X 036089112 IL
Critical Care Medicine (Internal Medicine) Physician 207RC0200X 01050729 IN
Pulmonary Disease Physician 207RP1001X 01050729 IN
Pulmonary Disease Physician 207RP1001X 036089112 IL Primary
Sleep Medicine (Internal Medicine) Physician 207RS0012X 036089112 IL

Addresses

Primary practice location

100 Spalding Dr
Naperville, IL 60540-6550

Mailing address

2650 Ridge Ave Ste 1223
Evanston, IL 60201-1700
Phone (847) 570-2040

Other identifiers 1

IdentifierTypeStateIssuer
230237830MedicaidIN

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address sahsan5409@Direct.FranciscanAlliance.org Direct
Direct Messaging Address sahsan260360@direct.edward.org Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230606000271 IL Practitioner - Pulmonary Disease 0941262810 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pulmonary Disease
Education
Other, 1986
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Endeavor Health Medical GroupGroup PAC ID 2163334699, 3,330 clinicians

Practice addresses (Care Compare)

100 Spalding Dr
Naperville, IL 60540-6552

120 Spalding Dr
Suite 205And207
Naperville, IL 60540-6508
Phone (630) 646-6020

2650 Ridge Ave
Evanston, IL 60201-1700

801 S Washington St
Naperville, IL 60540-7430
Phone (630) 527-5197

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036089112ILMDCritical Care Medicine (Internal Medicine) Physician
01050729INMDCritical Care Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Endeavor Health Medical Group CurrentSince Nov 8, 2023 Accepting new patients
Edward Health Ventures CurrentSince May 14, 2023 Accepting new patients
Endeavor Health Medical Group CurrentSince Nov 8, 2023 Accepting new patients
Edward Health Ventures CurrentSince May 14, 2023 Accepting new patients

Locations

9532 Eagle Way
Chicago, IL 60678

2650 Ridge Ave
Evanston, IL 60201
Phone (847) 570-1206

2650 Ridge Ave
#1223
Evanston, IL 60201
Phone (847) 982-3172

2650 Ridge Ave
Ste 1223
Evanston, IL 60201
Phone (847) 982-3175

2650 Ridge Ave
Ste 2218A
Evanston, IL 60201
Phone (847) 503-4222

100 Spalding Dr
Ste 200
Naperville, IL 60540
Phone (630) 355-5860

120 Spalding Dr
Ste 101
Naperville, IL 60540
Phone (630) 527-7730

120 Spalding Dr
Ste 310
Naperville, IL 60540
Phone (630) 527-5575

Interoperability endpoints

  • Direct secure messaging: sahsan5409@direct.franciscanalliance.org

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1153094400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1740208180",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2650 RIDGE AVE STE 1223",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602011700",
            "telephone_number": "847-570-2040",
            "fax_number": "847-570-5315"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 SPALDING DR",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605406550",
            "telephone_number": "630-355-8776",
            "fax_number": "630-355-7445"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AHSAN",
        "first_name": "SHAHID",
        "middle_name": "M.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-17",
        "last_updated": "2026-09-29",
        "certification_date": "2026-09-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "IL",
            "license": "036089112",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "IN",
            "license": "01050729",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "IN",
            "license": "01050729",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "IL",
            "license": "036089112",
            "primary": true
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "IL",
            "license": "036089112",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "230237830",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "sahsan5409@Direct.FranciscanAlliance.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "3920 St Francis Way Ste 220",
            "city": "Lafayette",
            "state": "IN",
            "country_code": "US",
            "postal_code": "479054922",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "sahsan260360@direct.edward.org",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "100 Spalding Dr Ste 200",
            "city": "Naperville",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605406552",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Naperville, IL

Sources for this page

Verify at the official NPI Registry.