NEIL SEIF M.D.
NPI 1316077662
Radiology - Radiation Oncology in Munster, IN
About Neil Seif M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NEIL SEIF M.D. (NPI 1316077662) is an individual radiation oncology provider in Munster, Indiana and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Mt Sinai Hospital Medical Center, and is a graduate of Rush Medical College Of Rush University (2002).
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
Neil Seif 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 Neil Seif reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60629
- Reassigned Medicare billing, Illinois enrollment
- 646 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 4
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mt Sinai Hospital Medical Center
Acute Care Hospitals · Chicago, ILHoly Cross Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46321 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.
MUNSTER, IN 46321
MUNSTER, IN 46321
MUNSTER, IN 46321
MUNSTER, IN 46321
MUNSTER, IN 46321
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 Seif's NPI number?
The NPI number for Neil Seif is 1316077662. It was assigned to this individual provider in the NPPES registry on March 6, 2007.
Where is Neil Seif located?
Neil Seif practices at 901 Macarthur Blvd Radiation Medicine Associates, Munster, IN 46321. The listed phone number is (219) 836-6390.
What is Neil Seif's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Neil Seif enrolled in Medicare?
Yes. Neil Seif 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 Seif's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Neil Seif reassigns Medicare benefits to Mount Sinai Community Foundation (Chicago, 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 Seif's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Neil Seif accept?
Health plans from Oscar Health list Neil Seif 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 Seif affiliated with any hospitals?
According to CMS data, Neil Seif is affiliated with Mt Sinai Hospital Medical Center and Holy Cross Hospital.
When was this NPI record last updated?
The NPPES record for Neil Seif was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Neil Seif, M.D. · NPI 1316077662
Radiation Oncology physician in Munster, Indiana. Individual provider, active in the CMS NPPES registry since March 6, 2007.
## Identity
- **NPI:** 1316077662 (Entity type: Individual)
- **Enumerated:** March 6, 2007
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **Sole proprietor:** No
## Practice location
- **Address:** 901 MACARTHUR BLVD, RADIATION MEDICINE ASSOCIATES, Munster, IN 46321-2901
- **Phone:** (219) 836-6390
## 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:** Mount Sinai Community Foundation (NPI 1578972188, Chicago, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 2002
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1316077662) · Data from the CMS NPPES public registry.