NANCY I STREITMATTER MD
NPI 1265444590
Internal Medicine - Cardiovascular Disease in Chicago, IL
About Nancy I Streitmatter Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANCY I STREITMATTER MD (NPI 1265444590) is an individual cardiovascular disease provider in Chicago, Illinois and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Nancy I Streitmatter Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nancy Streitmatter 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
- Medicare enrollment name: Mount Sinai Community Foundation
- 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60629 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60629
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 Nancy Streitmatter's NPI number?
The NPI number for Nancy Streitmatter is 1265444590. It was assigned to this individual provider in the NPPES registry on August 13, 2006.
Where is Nancy Streitmatter located?
Nancy Streitmatter practices at 2701 W 68th St, Chicago, IL 60629. The listed phone number is (773) 471-5547.
What is Nancy Streitmatter's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Nancy Streitmatter enrolled in Medicare?
Yes. Nancy Streitmatter is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nancy Streitmatter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Streitmatter reassigns Medicare benefits to Mount Sinai Community Foudation (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 Nancy Streitmatter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Nancy Streitmatter was last updated on July 9, 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.
# Nancy I Streitmatter, MD · NPI 1265444590
Cardiovascular Disease physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since August 13, 2006.
## Identity
- **NPI:** 1265444590 (Entity type: Individual)
- **Enumerated:** August 13, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **Sole proprietor:** No
## Practice location
- **Address:** 2701 W 68TH ST, Chicago, IL 60629-1813
- **Phone:** (773) 471-5547
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Mount Sinai Community Foudation (NPI 1104242718, Chicago, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 9, 2007
- **Other identifiers:** Other 01619280 (IL); Medicare ID-Type Unspecified K19757 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1265444590) · Data from the CMS NPPES public registry.