GANESH KARTHIK SIVAKUMAR
NPI 1619626728
Internal Medicine in New York, NY
About Ganesh Karthik Sivakumar NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GANESH KARTHIK SIVAKUMAR (NPI 1619626728) is an individual internal medicine provider in New York, New York, licensed in New York (338168) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (2022).
NPPES Registry Identity
Specialties & Licenses
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
Ganesh Karthik Sivakumar 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 Ganesh Sivakumar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10016
- Reassigned Medicare billing, New York enrollment
- 63 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 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 10016 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.
NEW YORK, NY 10016
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 Ganesh Sivakumar's NPI number?
The NPI number for Ganesh Sivakumar is 1619626728. It was assigned to this individual provider in the NPPES registry on March 23, 2022.
Where is Ganesh Sivakumar located?
Ganesh Sivakumar practices at 38 E 32nd St Fl 9, New York, NY 10016. The listed phone number is (212) 725-2660.
What is Ganesh Sivakumar's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Ganesh Sivakumar enrolled in Medicare?
Yes. Ganesh Sivakumar 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 Ganesh Sivakumar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ganesh Sivakumar reassigns Medicare benefits to 2 organizations: Marcus Avenue Medical PC (New York, NY) and North Shore - Lij Medical PC (New Hyde Park, NY). 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 Ganesh Sivakumar'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 Ganesh Sivakumar was last updated on November 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Ganesh Karthik Sivakumar · NPI 1619626728
Internal Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 23, 2022.
## Identity
- **NPI:** 1619626728 (Entity type: Individual)
- **Enumerated:** March 23, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 338168 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 38 E 32ND ST FL 9, New York, NY 10016-5563
- **Phone:** (212) 725-2660
## 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): Marcus Avenue Medical PC (NPI 1255982542, New York, NY); North Shore - Lij Medical PC (NPI 1790043479, New Hyde Park, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 2022
## Record status
- **NPPES last updated:** November 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1619626728) · Data from the CMS NPPES public registry.