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MOHAMMED SHEHAN SIDDIQI MD
NPI 1447693601
Hospitalist in Naperville, IL

Active since April 08, 2013PECOS EnrolledAccepts Medicare Assignment
100 SPALDING DR STE 408, NAPERVILLE, IL 60540(630) 717-2630(630) 355-9546 Get Directions Write a Review

NPPES record last updated: August 22, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 22, 2023, Sep 23, 2022, Jan 27, 2022 and 1 more (4 updates tracked since 2016).

About Mohammed Shehan Siddiqi Md NPPES

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

MOHAMMED SHEHAN SIDDIQI MD (NPI 1447693601) is an individual hospitalist provider in Naperville, Illinois, licensed in Illinois (036-139186) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Osf Saint Elizabeth Mdl Ctr, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1447693601
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameMOHAMMED SHEHAN SIDDIQICredential: MD
Location Address100 SPALDING DR STE 408Naperville, IL 60540-6554
Mailing AddressPo Box 713260Chicago, IL 60677-1260 · (630) 469-9200
Phone(630) 717-2630
Fax(630) 355-9546
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateApril 8, 2013
Last NPPES UpdateAugust 22, 20234 updates tracked since enumeration
NPPES CertifiedAugust 22, 2023
✔ NPI 1447693601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in IL · 036-139186
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
100 SPALDING DR STE 408, Naperville, IL 60540
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Other Identifiers 1

Medicaid1447693601WI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mohammed Shehan Siddiqi Md 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 ID3678878634
PECOS Enrollment IDI20220902000442, I20260629002008
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Mohammed Shehan Siddiqi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dupage Medical Group Ltd
8.6 mi
Multi-Specialty
1100 W 31ST ST, STE 300
Downers Grove, IL 60515
  • Reassigned Medicare billing, Illinois enrollment
  • 1,061 clinicians in this Medicare group
NPI 1801833983 (630) 469-9200
24 On Physicians, PC
45 mi
Hospitalist
1100 E NORRIS DR
Ottawa, IL 61350
  • Reassigned Medicare billing, Illinois enrollment
  • 233 clinicians in this Medicare group
NPI 1346480431 (800) 923-2247
24 On Physician Partners, PC
49 mi
Hospitalist
1500 S LAKE PARK AVE
Hobart, IN 46342
  • Reassigned Medicare billing, Indiana enrollment
  • 44 clinicians in this Medicare group
NPI 1013497106 (800) 923-2247

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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.
459 services221 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
238 services219 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
225 services212 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
176 services89 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
39 services28 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.
15 services13 patients

Hospital Affiliations CMS Care Compare 4

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

Osf Saint Elizabeth Mdl Ctr

Acute Care Hospitals · Ottawa, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140110
Location1100 E Norris DriveOttawa, IL 61350 · La Salle County
Emergency services Birthing friendly

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

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

St Mary Medical Center Inc

Acute Care Hospitals · Hobart, IN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150034
Location1500 S Lake Park AveHobart, IN 46342 · Lake 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.

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 Mohammed Shehan Siddiqi's NPI number?

The NPI number for Mohammed Shehan Siddiqi is 1447693601. It was assigned to this individual provider in the NPPES registry on April 8, 2013.

Where is Mohammed Shehan Siddiqi located?

Mohammed Shehan Siddiqi practices at 100 Spalding Dr Ste 408, Naperville, IL 60540. The listed phone number is (630) 717-2630.

What is Mohammed Shehan Siddiqi's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Mohammed Shehan Siddiqi enrolled in Medicare?

Yes. Mohammed Shehan Siddiqi 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.

Which organizations bill Medicare for Mohammed Shehan Siddiqi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mohammed Shehan Siddiqi reassigns Medicare benefits to 3 organizations: Dupage Medical Group Ltd (Downers Grove, IL), 24 On Physicians, PC (Ottawa, IL) and 24 On Physician Partners, PC (Hobart, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mohammed Shehan Siddiqi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mohammed Shehan Siddiqi affiliated with any hospitals?

According to CMS data, Mohammed Shehan Siddiqi is affiliated with Osf Saint Elizabeth Mdl Ctr, Edward Hospital, Northwestern Medicine Central Dupage Hospital and St Mary Medical Center Inc.

When was this NPI record last updated?

The NPPES record for Mohammed Shehan Siddiqi was last updated on August 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.