DR. AJAY K DONTHAMSETTI MD
NPI 1295773661
Anesthesiology in Oak Lawn, IL
About Dr. Ajay K Donthamsetti Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AJAY K DONTHAMSETTI MD (NPI 1295773661) is an individual anesthesiology provider in Oak Lawn, Illinois, licensed in Illinois (036095380) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Christ Hospital & Medical Center, and maintains a secondary practice location in Arlington Heights.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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. Ajay K Donthamsetti 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
5Medicare enrollment records show Ajay Donthamsetti reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Lawn, IL 60453
- Reassigned Medicare billing, Illinois enrollment
- 93 clinicians in this Medicare group
Oak Lawn, IL 60453
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Advocate Health And Hospitals Corporation
- 4,870 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 clinicians in this Medicare group
Orange City, FL 32763
- Reassigned Medicare billing, Florida enrollment
- 530 clinicians in this Medicare group
Ocoee, FL 34761
- Reassigned Medicare billing, Florida enrollment
- 108 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 5
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Christ Hospital & Medical Center
Acute Care Hospitals · Oak Lawn, ILOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OAK LAWN, IL 60453
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 Ajay Donthamsetti's NPI number?
The NPI number for Ajay Donthamsetti is 1295773661. It was assigned to this individual provider in the NPPES registry on June 4, 2006.
Where is Ajay Donthamsetti located?
Ajay Donthamsetti practices at 4440 W 95th St, Oak Lawn, IL 60453. The listed phone number is (708) 684-8000.
What is Ajay Donthamsetti's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Ajay Donthamsetti enrolled in Medicare?
Yes. Ajay Donthamsetti 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 Ajay Donthamsetti's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ajay Donthamsetti reassigns Medicare benefits to 5 organizations: Midwest Anesthesiologists, Ltd. (Oak Lawn, IL), Advocate Health & Hospitals Corporation (Oak Lawn, IL), Endeavor Health Medical Group (Evanston, IL), Anesthesiologists Of Greater Orlando Inc (Orange City, FL) and Orlando Anesthesia Consultants PA (Ocoee, FL). 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 Ajay Donthamsetti's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ajay Donthamsetti affiliated with any hospitals?
According to CMS data, Ajay Donthamsetti is affiliated with Advocate Christ Hospital & Medical Center.
When was this NPI record last updated?
The NPPES record for Ajay Donthamsetti was last updated on October 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.