NEIL K DALAL DO
NPI 1275775454
Internal Medicine - Hematology & Oncology in Downers Grove, IL
About Neil K Dalal Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NEIL K DALAL DO (NPI 1275775454) is an individual hematology & oncology provider in Downers Grove, Illinois, licensed in Illinois (036128814) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and maintains a secondary practice location in Park Ridge.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Neil K Dalal 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 Reassignment
Medicare enrollment records show Neil Dalal reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 4,870 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 6
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Illinois Masonic Medical Center
Acute Care Hospitals · Chicago, ILAdvocate Christ Hospital & Medical Center
Acute Care Hospitals · Oak Lawn, ILEdward Hospital
Acute Care Hospitals · Naperville, ILAdvocate Good Samaritan Hospital
Acute Care Hospitals · Downers Grove, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60515 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DOWNERS GROVE, IL 60515
DOWNERS GROVE, IL 60515
DOWNERS GROVE, IL 60515
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 Neil Dalal's NPI number?
The NPI number for Neil Dalal is 1275775454. It was assigned to this individual provider in the NPPES registry on April 2, 2009.
Where is Neil Dalal located?
Neil Dalal practices at 3745 Highland Ave Fl 2, Downers Grove, IL 60515. The listed phone number is (630) 369-1501.
What is Neil Dalal's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Neil Dalal enrolled in Medicare?
Yes. Neil Dalal 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 Neil Dalal's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Neil Dalal reassigns Medicare benefits to Advocate Health And Hospitals Corporation (Downers Grove, 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 Neil Dalal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Neil Dalal accept?
Health plans from Oscar Health list Neil Dalal 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 Neil Dalal affiliated with any hospitals?
According to CMS data, Neil Dalal is affiliated with Advocate Illinois Masonic Medical Center, Advocate Christ Hospital & Medical Center, Edward Hospital and Advocate Good Samaritan Hospital.
When was this NPI record last updated?
The NPPES record for Neil Dalal was last updated on April 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Neil K Dalal, DO · NPI 1275775454
Hematology & Oncology physician in Downers Grove, Illinois. Individual provider, active in the CMS NPPES registry since April 2, 2009.
## Identity
- **NPI:** 1275775454 (Entity type: Individual)
- **Enumerated:** April 2, 2009
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 036128814 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 3745 HIGHLAND AVE FL 2, Downers Grove, IL 60515-1584
- **Phone:** (630) 369-1501
## 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:** Advocate Health And Hospitals Corporation (NPI 1285903849, Downers Grove, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Osteopathic Medicine, class of 2009
## Record status
- **NPPES last updated:** April 30, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1275775454) · Data from the CMS NPPES public registry.