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DR. MAAROOF ISLAM M.D.
NPI 1548656747
Hospitalist in O Fallon, IL

Active since April 14, 2015PECOS EnrolledAccepts Medicare Assignment
90.77/100
CMS Quality Rating
1 SAINT ELIZABETH BLVD, O FALLON, IL 62269(816) 234-2120 Get Directions Write a Review

NPPES record last updated: July 23, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 23, 2018, Jul 12, 2018 (2 updates tracked since 2018).

About Dr. Maaroof Islam M.d. NPPES

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

DR. MAAROOF ISLAM M.D. (NPI 1548656747) is an individual hospitalist provider in O Fallon, Illinois, licensed in Illinois (036146913) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with St Mary Medical Center, and maintains a secondary practice location in Kansas City.

NPPES Registry Identity

NPI1548656747
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameDR. MAAROOF ISLAMCredential: M.D.
Location Address1 SAINT ELIZABETH BLVDO Fallon, IL 62269
Mailing Address7900 Lees Summit RdKansas City, MO 64139-1236
Phone(816) 234-2120
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateApril 14, 2015
Last NPPES UpdateJuly 23, 20182 updates tracked since enumeration
✔ NPI 1548656747 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in IL · 036146913
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.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 036146913 (IL)
Also ListedInternal MedicineTaxonomy 207R00000X · License 036146913 (IL)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 2015017276 (MO)
1 SAINT ELIZABETH BLVD, O Fallon, IL 62269
Open in Google Maps ↗

Secondary Practice Location 1

Location 17900 Lees Summit RdKansas City, MO 64139-1236 · Phone (816) 404-4862

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

Dr. Maaroof Islam 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 ID42512907
PECOS Enrollment IDI20180810002159
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 Maaroof Islam reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cep America-Illinois Hospitalists, LLP
1.6 mi
Internal Medicine
1404 CROSS ST
Shiloh, IL 62269
  • Reassigned Medicare billing, Illinois enrollment
  • 329 clinicians in this Medicare group
NPI 1619335106 (618) 233-7750
Cep America - Illinois Snf, LLP
1.6 mi
Infectious Disease
1404 CROSS ST
Shiloh, IL 62269
  • Reassigned Medicare billing, Illinois enrollment
  • 51 clinicians in this Medicare group
NPI 1942712476 (618) 257-5644
Galen Inpatient Physicians PC.
30 mi
Hospitalist
1015 BOWLES AVE
Fenton, MO 63026
  • Reassigned Medicare billing, Missouri enrollment
  • 93 clinicians in this Medicare group
NPI 1538714688 (636) 496-2000

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.
526 services211 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.
133 services131 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.
61 services39 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.
61 services34 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.
58 services58 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.
33 services30 patients

Hospital Affiliations CMS Care Compare 3

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

St Mary Medical Center

Acute Care Hospitals · Galesburg, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140064
Location3333 North SeminaryGalesburg, IL 61401 · Knox County
Emergency services Birthing friendly

St Josephs Hospital

Acute Care Hospitals · Breese, IL
OwnershipVoluntary non-profit - Church
CMS Certification Number140145
Location9515 Holy Cross LnBreese, IL 62230 · Clinton County
Emergency services Birthing friendly

Hshs St Elizabeth's Hospital

Acute Care Hospitals · O Fallon, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140187
LocationOne St Elizabeth BoulevardO Fallon, IL 62269 · St. Clair County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62269 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
$131.14 typical visit price
range $56.28 – $173.35
Typical copayment $32.78 (range $14.07 – $43.33)
Most-billed visit code 99204
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

90.77/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality86.98
Improvement Activities40
Cost68.13

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.

ST ELIZABETHS HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER
Rehabilitation Unit
1 SAINT ELIZABETH BLVD
O FALLON, IL 62269
St. Clair County (618) 234-2120
KATHRYN LOHMAN PA-C
Physician Assistant
1 SAINT ELIZABETH BLVD
O FALLON, IL 62269
St. Clair County (618) 234-2120
MS. SHAMBRA CULLUM APN
Nurse Practitioner (Family)
1 SAINT ELIZABETH BLVD
O FALLON, IL 62269
St. Clair County (217) 994-1485
ATA U. SIDDIQUI M.D.
Anesthesiology
1 SAINT ELIZABETH BLVD
O FALLON, IL 62269
St. Clair County (618) 234-2120
DR. VINCENT JOSEPH DUENAS MD
Hospitalist
1 SAINT ELIZABETH BLVD
O FALLON, IL 62269
St. Clair County (618) 234-2120
CAITLIN ALONZO
Nurse Practitioner
1 SAINT ELIZABETH BLVD
O FALLON, IL 62269
St. Clair County (618) 234-2120
CEP AMERICA-ILLINOIS HOSPITALISTS, LLP
Internal Medicine
1 SAINT ELIZABETH BLVD
O FALLON, IL 62269
St. Clair County (618) 234-2120
JENNIFER L CRIPPS CRNA
Nurse Anesthetist, Certified Registered
1 SAINT ELIZABETH BLVD
O FALLON, IL 62269
St. Clair County (618) 234-2120

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 Maaroof Islam's NPI number?

The NPI number for Maaroof Islam is 1548656747. It was assigned to this individual provider in the NPPES registry on April 14, 2015.

Where is Maaroof Islam located?

Maaroof Islam practices at 1 Saint Elizabeth Blvd, O Fallon, IL 62269. The listed phone number is (816) 234-2120.

What is Maaroof Islam's specialty?

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

Is Maaroof Islam enrolled in Medicare?

Yes. Maaroof Islam 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 Maaroof Islam's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maaroof Islam reassigns Medicare benefits to 3 organizations: Cep America-Illinois Hospitalists, LLP (Shiloh, IL), Cep America - Illinois Snf, LLP (Shiloh, IL) and Galen Inpatient Physicians PC. (Fenton, MO). 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 Maaroof Islam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Maaroof Islam affiliated with any hospitals?

According to CMS data, Maaroof Islam is affiliated with St Mary Medical Center, St Josephs Hospital and Hshs St Elizabeth's Hospital.

When was this NPI record last updated?

The NPPES record for Maaroof Islam was last updated on July 23, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.