KUMAR NATHAN M.D.
NPI 1245251834
Hospitalist in Huntley, IL
About Kumar Nathan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KUMAR NATHAN M.D. (NPI 1245251834) is an individual hospitalist provider in Huntley, Illinois, licensed in Illinois (036109506) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Kumar Nathan 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.
Medicare Billing Reassignments
2Medicare enrollment records show Kumar Nathan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60142 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.
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.
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 Kumar Nathan's NPI number?
The NPI number for Kumar Nathan is 1245251834. It was assigned to this individual provider in the NPPES registry on July 21, 2006.
Where is Kumar Nathan located?
Kumar Nathan practices at 10400 Haligus Rd, Huntley, IL 60142. The listed phone number is (815) 759-4520.
What is Kumar Nathan's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Kumar Nathan enrolled in Medicare?
Yes. Kumar Nathan 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 Kumar Nathan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kumar Nathan reassigns Medicare benefits to 2 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL) and Central Dupage Physician Group (Carol Stream, IL). 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 Kumar Nathan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Kumar Nathan affiliated with any hospitals?
According to CMS data, Kumar Nathan is affiliated with Northwestern Medicine Mchenry.
When was this NPI record last updated?
The NPPES record for Kumar Nathan was last updated on October 19, 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.
# Kumar Nathan, M.D. · NPI 1245251834
Hospitalist physician in Huntley, Illinois. Individual provider, active in the CMS NPPES registry since July 21, 2006.
## Identity
- **NPI:** 1245251834 (Entity type: Individual)
- **Enumerated:** July 21, 2006
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036109506 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 10400 HALIGUS RD, Huntley, IL 60142
- **Phone:** (815) 759-4520 · **Fax:** (815) 338-6297
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL); Central Dupage Physician Group (NPI 1033149844, Carol Stream, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** October 19, 2018
- **Other identifiers:** Other 036109506 (IL); Medicaid 036109506 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1245251834) · Data from the CMS NPPES public registry.