DR. MAHALAKSHMI K. HALASYAMANI M.D.
NPI 1760441679
Internal Medicine in Evanston, IL
About Dr. Mahalakshmi K. Halasyamani M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MAHALAKSHMI K. HALASYAMANI M.D. (NPI 1760441679) is an individual internal medicine provider in Evanston, Illinois, licensed in Illinois (036098272) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of Harvard Medical School (1994).
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. Mahalakshmi K. Halasyamani 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 Reassignment
Medicare enrollment records show Mahalakshmi Halasyamani reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 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
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.
Northshore University Healthsystem - Evanston Hospital
Acute Care Hospitals · Evanston, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Mahalakshmi Halasyamani's NPI number?
The NPI number for Mahalakshmi Halasyamani is 1760441679. It was assigned to this individual provider in the NPPES registry on March 20, 2006.
Where is Mahalakshmi Halasyamani located?
Mahalakshmi Halasyamani practices at 2650 Ridge Ave # 300, Evanston, IL 60201. The listed phone number is (847) 570-2700.
What is Mahalakshmi Halasyamani's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mahalakshmi Halasyamani enrolled in Medicare?
Yes. Mahalakshmi Halasyamani 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 organization bills Medicare for Mahalakshmi Halasyamani's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mahalakshmi Halasyamani reassigns Medicare benefits to Endeavor Health Medical Group (Evanston, IL). The 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 Mahalakshmi Halasyamani's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mahalakshmi Halasyamani accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Mahalakshmi Halasyamani 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 Mahalakshmi Halasyamani affiliated with any hospitals?
According to CMS data, Mahalakshmi Halasyamani is affiliated with Northshore University Healthsystem - Evanston Hospital.
When was this NPI record last updated?
The NPPES record for Mahalakshmi Halasyamani was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days 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. Mahalakshmi K. Halasyamani, M.D. · NPI 1760441679
Internal Medicine physician in Evanston, Illinois. Individual provider, active in the CMS NPPES registry since March 20, 2006.
## Identity
- **NPI:** 1760441679 (Entity type: Individual)
- **Enumerated:** March 20, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 036098272 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2650 RIDGE AVE # 300, Evanston, IL 60201-1700
- **Phone:** (847) 570-2700 · **Fax:** (847) 570-2282
## 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:** Endeavor Health Medical Group (NPI 1265695944, Evanston, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 1994
## Record status
- **NPPES last updated:** September 14, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1760441679) · Data from the CMS NPPES public registry.