DR. MOHAMMED S. SIDDIQUI MD
NPI 1639456122
Psychiatry & Neurology - Geriatric Psychiatry in Lombard, IL

Q: What is Mohammed Siddiqui's NPI number?

The NPI number for Mohammed Siddiqui is 1639456122. It was assigned to this individual provider in the NPPES registry on November 10, 2011.

Q: What is Mohammed Siddiqui's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.

Q: When was this NPI record last updated?

The NPPES record for Mohammed Siddiqui was last updated on November 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 November 10, 2011PECOS EnrolledAccepts Medicare Assignment

477 E BUTTERFIELD RD STE 102, LOMBARD, IL 60148(630) 528-3835(630) 528-3837 Get Directions Write a Review

NPPES record last updated: November 20, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 20, 2025, Aug 23, 2017 (2 updates tracked since 2017).

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About Dr. Mohammed S. Siddiqui Md NPPES

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

DR. MOHAMMED S. SIDDIQUI MD (NPI 1639456122) is an individual geriatric psychiatry provider in Lombard, Illinois, licensed in Illinois (036-131386) and active in the NPI registry since November 2011. He is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and is a graduate of Other (1997).

NPPES Registry Identity

NPI1639456122

Entity TypeIndividualMale

Primary Taxonomy2084P0805X

Provider Legal NameDR. MOHAMMED S. SIDDIQUICredential: MD

Location Address477 E BUTTERFIELD RD STE 102Lombard, IL 60148-4880

Mailing Address477 E Butterfield Rd Ste 102Lombard, IL 60148-4880 · (630) 528-3835 · Fax (630) 528-3837

Phone(630) 528-3835

Fax(630) 528-3837

Sole ProprietorYes

Medical School CMSOtherGraduated 1997

Enumeration DateNovember 10, 2011

Last NPPES UpdateNovember 20, 20252 updates tracked since enumeration

NPPES CertifiedNovember 20, 2025

✔ NPI 1639456122 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Geriatric PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0805X

License✔ Licensed in IL · 036-131386

Definition

Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.

477 E BUTTERFIELD RD STE 102, Lombard, IL 60148

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Other Identifiers 1

Medicaid036131386IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware and more.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. Mohammed S. Siddiqui 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 ID8729224720

PECOS Enrollment IDI20130417000630

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 3

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.

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.

240 services82 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

161 services66 patients

Psychiatric diagnostic evaluation with medical services 90792

A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.

29 services29 patients

Hospital Affiliations CMS Care Compare 5

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

Rush Oak Park Hospital

Acute Care Hospitals · Oak Park, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140063

Location520 S Maple AveOak Park, IL 60304 · Cook County

Emergency services

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

Rush University Medical Center

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140119

Location1653 West Congress ParkwayChicago, IL 60612 · Cook County

Emergency services Birthing friendly

Elmhurst Memorial Hospital

Acute Care Hospitals · Elmhurst, IL

4/5 CMS rating

OwnershipProprietary

CMS Certification Number140200

Location155 East Brush Hill RoadElmhurst, IL 60126 · Du Page 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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60148 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

$181.38 typical visit price

range $59.81 – $181.38

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

Most-billed visit code 99205

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 2

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

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

1 supplier12 claims72 services$1.75 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

1 supplier29 claims29 services$28.45 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 5

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

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