MARK SACK DPM PC
NPI 1902839194
Podiatrist - Foot & Ankle Surgery in Chicago, IL
About Mark Sack Dpm Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK SACK DPM PC (NPI 1902839194) is a healthcare organization registered as a foot & ankle surgery in Chicago, Illinois and active in the NPI registry since July 2006. The organization lists Mark Sack, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mark Sack Dpm Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Mark Sack DPM PC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Mark Sack Dpm PC's NPI number?
The NPI number for Mark Sack Dpm PC is 1902839194. It was assigned to this organization in the NPPES registry on July 9, 2006.
Where is Mark Sack Dpm PC located?
Mark Sack Dpm PC is located at 3216 W 115th St, Chicago, IL 60655. The listed phone number is (773) 238-7270.
What is Mark Sack Dpm PC's specialty?
The primary specialty registered for this NPI is Podiatrist, specializing in Foot & Ankle Surgery, with taxonomy code 213ES0103X.
Is Mark Sack Dpm PC enrolled in Medicare?
Yes. Mark Sack Dpm PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Mark Sack Dpm PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Podiatry) reassigns their Medicare billing to Mark Sack Dpm PC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mark Sack Dpm PC was last updated on May 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Mark Sack Dpm Pc · NPI 1902839194
Foot & Ankle Surgery organization in Chicago, Illinois. Organization record, active in the CMS NPPES registry since July 9, 2006.
## Identity
- **NPI:** 1902839194 (Entity type: Organization)
- **Enumerated:** July 9, 2006
- **Primary specialty:** Podiatrist - Foot & Ankle Surgery · taxonomy 213ES0103X
- **Organization subpart:** No
- **Authorized official:** Mark Sack, PRESIDENT
## Practice location
- **Address:** 3216 W 115TH ST, Chicago, IL 60655-2805
- **Phone:** (773) 238-7270 · **Fax:** (773) 238-9627
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Podiatry) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 22, 2020
- **Other identifiers:** Other 01633481 (IL); Other DE0221 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1902839194) · Data from the CMS NPPES public registry.