MOHAMMED SIRAJUDDIN HAMMAD MD
NPI 1235148982
Hospitalist in Olympia Fields, IL
About Mohammed Sirajuddin Hammad Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MOHAMMED SIRAJUDDIN HAMMAD MD (NPI 1235148982) is an individual hospitalist provider in Olympia Fields, Illinois, licensed in Illinois (036110255) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Franciscan Health Olympia & Chicago Heights, and maintains a secondary practice location in Harvey.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
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 Sirajuddin Hammad 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.
Medicare Billing Reassignments
7Medicare enrollment records show Mohammed Hammad reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Harvey, IL 60426
- Reassigned Medicare billing, Illinois enrollment
- 42 clinicians in this Medicare group
Hinsdale, IL 60521
- Reassigned Medicare billing, Illinois enrollment
- 108 clinicians in this Medicare group
Chicago, IL 60634
- Reassigned Medicare billing, Illinois enrollment
- 174 clinicians in this Medicare group
Lincolnwood, IL 60712
- Reassigned Medicare billing, Illinois enrollment
- 2 clinicians in this Medicare group
Lincolnwood, IL 60712
- Reassigned Medicare billing, Illinois enrollment
Des Plaines, IL 60016
- Reassigned Medicare billing, Illinois enrollment
- 443 clinicians in this Medicare group
Bridgeton, MO 63044
- Reassigned Medicare billing, Illinois enrollment
- 419 clinicians in this Medicare group
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 2
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Franciscan Health Olympia & Chicago Heights
Acute Care Hospitals · Olympia Fields, ILIngalls Memorial Hospital
Acute Care Hospitals · Harvey, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60461 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Reported Quality Measures
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.
OLYMPIA FIELDS, IL 60461
OLYMPIA FIELDS, IL 60461
OLYMPIA FIELDS, IL 60461
OLYMPIA FIELDS, IL 60461
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 Hammad's NPI number?
The NPI number for Mohammed Hammad is 1235148982. It was assigned to this individual provider in the NPPES registry on August 5, 2006.
Where is Mohammed Hammad located?
Mohammed Hammad practices at 20201 Crawford Ave, Olympia Fields, IL 60461. The listed phone number is (708) 679-2160.
What is Mohammed Hammad's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Mohammed Hammad enrolled in Medicare?
Yes. Mohammed Hammad 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 Hammad's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mohammed Hammad reassigns Medicare benefits to 7 organizations: Hospitalist Physicians Of Illinois, P.C. (Harvey, IL), Inpatient Consultants Of Illinois, P.C. (Hinsdale, IL), Community First Healthcare Of Illinois, Inc. (Chicago, IL), My Positive Plate Nutrition Inc. (Lincolnwood, IL), Diabalance LLC (Lincolnwood, IL) and 2 more organizations, listed in the Medicare section above. 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 Hammad's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mohammed Hammad accept?
Health plans from Oscar Health list Mohammed Hammad 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 Mohammed Hammad affiliated with any hospitals?
According to CMS data, Mohammed Hammad is affiliated with Franciscan Health Olympia & Chicago Heights and Ingalls Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Mohammed Hammad was last updated on June 21, 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.
# Mohammed Sirajuddin Hammad, MD · NPI 1235148982
Hospitalist physician in Olympia Fields, Illinois. Individual provider, active in the CMS NPPES registry since August 5, 2006.
## Identity
- **NPI:** 1235148982 (Entity type: Individual)
- **Enumerated:** August 5, 2006
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036110255 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 20201 CRAWFORD AVE, Olympia Fields, IL 60461-1010
- **Phone:** (708) 679-2160
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Hospitalist Physicians Of Illinois, P.C. (NPI 1396347761, Harvey, IL); Inpatient Consultants Of Illinois, P.C. (NPI 1548442569, Hinsdale, IL); Community First Healthcare Of Illinois, Inc. (NPI 1053102269, Chicago, IL); My Positive Plate Nutrition Inc. (NPI 1487401535, Lincolnwood, IL); Diabalance LLC (NPI 1376431924, Lincolnwood, IL); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** June 21, 2023
- **Other identifiers:** Other F400289336 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1235148982) · Data from the CMS NPPES public registry.