SHIREEN RENATE CHACKO MD
NPI 1518519131
Internal Medicine - Endocrinology, Diabetes & Metabolism in Philadelphia, PA
About Shireen Renate Chacko Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHIREEN RENATE CHACKO MD (NPI 1518519131) is an individual endocrinology, diabetes & metabolism provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD478462) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and maintains a secondary practice location in Philadelphia.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Shireen Renate Chacko Md 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 Reassignments
2Medicare enrollment records show Shireen Chacko reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,739 clinicians in this Medicare group
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota enrollment
- 6,534 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Hospital Rochester
Acute Care Hospitals · Rochester, MNMayo Clinic Health System In Red Wing
Acute Care Hospitals · Red Wing, MNMayo Clinic Health System - Cannon Falls
Critical Access Hospitals · Cannon Falls, MNThomas Jefferson University Hospital
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
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 Shireen Chacko's NPI number?
The NPI number for Shireen Chacko is 1518519131. It was assigned to this individual provider in the NPPES registry on July 13, 2019.
Where is Shireen Chacko located?
Shireen Chacko practices at 211 S 9th St Ste 600, Philadelphia, PA 19107. The listed phone number is (215) 955-1925.
What is Shireen Chacko's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Shireen Chacko enrolled in Medicare?
Yes. Shireen Chacko 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 organizations bill Medicare for Shireen Chacko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Shireen Chacko reassigns Medicare benefits to 2 organizations: Jefferson University Physicians (Philadelphia, PA) and Mayo Clinic (Rochester, MN). Each 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 Shireen Chacko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Shireen Chacko affiliated with any hospitals?
According to CMS data, Shireen Chacko is affiliated with Mayo Clinic Hospital Rochester, Mayo Clinic Health System In Red Wing, Mayo Clinic Health System - Cannon Falls and Thomas Jefferson University Hospital.
When was this NPI record last updated?
The NPPES record for Shireen Chacko was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Shireen Renate Chacko, MD · NPI 1518519131
Endocrinology, Diabetes & Metabolism physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since July 13, 2019.
## Identity
- **NPI:** 1518519131 (Entity type: Individual)
- **Enumerated:** July 13, 2019
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** MD478462 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 211 S 9TH ST STE 600, Philadelphia, PA 19107-6810
- **Phone:** (215) 955-1925
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Jefferson University Physicians (NPI 1326093675, Philadelphia, PA); Mayo Clinic (NPI 1114343860, Rochester, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** August 26, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1518519131) · Data from the CMS NPPES public registry.