UMBER AHMAD DO
NPI 1083957153
Internal Medicine - Rheumatology in Mchenry, IL
About Umber Ahmad Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
UMBER AHMAD DO (NPI 1083957153) is an individual rheumatology provider in Mchenry, Illinois, licensed in Illinois (036162396) and active in the NPI registry since March 2013. She is enrolled in Medicare PECOS, is affiliated with Javon Bea Hospital, and is a graduate of Other (2013).
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
Umber Ahmad Do 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
5Medicare enrollment records show Umber Ahmad reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 clinicians in this Medicare group
Lake Geneva, WI 53147
- Reassigned Medicare billing, Wisconsin and Illinois enrollments
- Also billed through NPI 1598718603 (Wisconsin)
- 271 clinicians in this Medicare group
Rockford, IL 61114
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Rockford, IL 61107
- Reassigned Medicare billing, Illinois enrollment
- 562 clinicians in this Medicare group
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 20,078 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 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Javon Bea Hospital
Acute Care Hospitals · Rockford, ILMercyhealth Hospital & Physician Clinic-Crystal La
Acute Care Hospitals · Crystal Lake, ILMercy Harvard Hospital
Critical Access Hospitals · Harvard, ILMercy Health System Corp
Acute Care Hospitals · Janesville, WIMercy Walworth Hospital & Medical Center
Critical Access Hospitals · Lake Geneva, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60050 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MCHENRY, IL 60050
MCHENRY, IL 60050
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 Umber Ahmad's NPI number?
The NPI number for Umber Ahmad is 1083957153. It was assigned to this individual provider in the NPPES registry on March 27, 2013.
Where is Umber Ahmad located?
Umber Ahmad practices at 4119 W Shamrock Ln, Mchenry, IL 60050. The listed phone number is (815) 398-9491.
What is Umber Ahmad's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Umber Ahmad enrolled in Medicare?
Yes. Umber Ahmad 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 Umber Ahmad's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Umber Ahmad reassigns Medicare benefits to 5 organizations: Mercy Harvard Hospital Inc (Harvard, IL), Mercy Health System Corporation (Lake Geneva, WI), Rockford Health Physicians (Rockford, IL), Orthomidwest, PLLC (Rockford, IL) and Permanente Medical Group Inc (Stockton, CA). 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 Umber Ahmad's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Umber Ahmad accept?
Health plans from Anthem Blue Cross and Blue Shield and MercyCare Health Plans list Umber Ahmad 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 Umber Ahmad affiliated with any hospitals?
According to CMS data, Umber Ahmad is affiliated with Javon Bea Hospital, Mercyhealth Hospital & Physician Clinic-Crystal La, Mercy Harvard Hospital, Mercy Health System Corp and Mercy Walworth Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for Umber Ahmad was last updated on August 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.