DR. MUHAMMAD AHSAN D.O.
NPI 1225491095
Hospitalist in Chicago, IL
About Dr. Muhammad Ahsan D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MUHAMMAD AHSAN D.O. (NPI 1225491095) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036.151586) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Osf Little Company Of Mary Medical Center, and is a graduate of Lake Erie Col Of Osteopathic Medicine, Bradenton (2016).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Muhammad Ahsan D.o. 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
13Medicare enrollment records show Muhammad Ahsan reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60616
- Reassigned Medicare billing, Illinois enrollment
- 354 clinicians in this Medicare group
Evanston, IL 60202
- Reassigned Medicare billing, Illinois enrollment
- 87 clinicians in this Medicare group
Chicago, IL 60631
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Chicago Physician Services PC
- 79 clinicians in this Medicare group
Hinsdale, IL 60521
- Reassigned Medicare billing, Illinois enrollment
- 108 clinicians in this Medicare group
Gary, IN 46402
- Reassigned Medicare billing, Indiana enrollment
- 384 clinicians in this Medicare group
Aurora, IL 60506
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Kane Physician Services PC
- 33 clinicians in this Medicare group
Bridgman, MI 49106
- Reassigned Medicare billing, Michigan enrollment
- 724 clinicians in this Medicare group
Fort Wayne, IN 46804
- Reassigned Medicare billing, Indiana enrollment
- 309 clinicians in this Medicare group
Quincy, IL 62301
- Reassigned Medicare billing, Illinois enrollment
- 81 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 4
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.
Osf Little Company Of Mary Medical Center
Acute Care Hospitals · Evergreen Park, ILSt Vincent Healthcare
Acute Care Hospitals · Billings, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60622 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Muhammad Ahsan's NPI number?
The NPI number for Muhammad Ahsan is 1225491095. It was assigned to this individual provider in the NPPES registry on March 30, 2016.
Where is Muhammad Ahsan located?
Muhammad Ahsan practices at 820 N Wood St Apt 3, Chicago, IL 60622. The listed phone number is (810) 423-3441.
What is Muhammad Ahsan's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Muhammad Ahsan enrolled in Medicare?
Yes. Muhammad Ahsan 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 Muhammad Ahsan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Muhammad Ahsan reassigns Medicare benefits to 13 organizations: Insight Chicago, Inc. (Chicago, IL), Cook Physician Services, P.C. (Evanston, IL), Chicago Physician Services, P.C. (Chicago, IL), Inpatient Consultants Of Illinois, P.C. (Hinsdale, IL), Sound Physicians Of Indiana, LLC (Gary, IN) and 8 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 Muhammad Ahsan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Muhammad Ahsan accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Texas, Mountain Health CO-OP and PacificSource Health Plans and 1 other insurer list Muhammad Ahsan 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 Muhammad Ahsan affiliated with any hospitals?
According to CMS data, Muhammad Ahsan is affiliated with Osf Little Company Of Mary Medical Center and St Vincent Healthcare.
When was this NPI record last updated?
The NPPES record for Muhammad Ahsan was last updated on August 14, 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.
# Dr. Muhammad Ahsan, D.O. · NPI 1225491095
Hospitalist physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since March 30, 2016.
## Identity
- **NPI:** 1225491095 (Entity type: Individual)
- **Enumerated:** March 30, 2016
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036.151586 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 820 N WOOD ST APT 3, Chicago, IL 60622-6557
- **Phone:** (810) 423-3441
## 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:** 13 organizations under Medicare reassignment (form CMS-855R): Insight Chicago, Inc. (NPI 1881261006, Chicago, IL); Cook Physician Services, P.C. (NPI 1487416376, Evanston, IL); Chicago Physician Services, P.C. (NPI 1538921424, Chicago, IL); Inpatient Consultants Of Illinois, P.C. (NPI 1548442569, Hinsdale, IL); Sound Physicians Of Indiana, LLC (NPI 1528311149, Gary, IN); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lake Erie Col Of Osteopathic Medicine, Bradenton, class of 2016
## Record status
- **NPPES last updated:** August 14, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1225491095) · Data from the CMS NPPES public registry.