HARAN SIVAKUMAR MD
NPI 1982109740
Family Medicine - Addiction Medicine in New York, NY
About Haran Sivakumar Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HARAN SIVAKUMAR MD (NPI 1982109740) is an individual addiction medicine provider in New York, New York, licensed in New York (312837) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and maintains 5 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Locations 5
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
Haran Sivakumar 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
3Medicare enrollment records show Haran Sivakumar reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10013
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Weill Medical College Of Cornell
- Also billed through NPI 1932143815 (New York)
- 980 clinicians in this Medicare group
San Diego, CA 92111
- Reassigned Medicare billing, California enrollment
- 1,233 clinicians in this Medicare group
Paradise, CA 95969
- Reassigned Medicare billing, California enrollment
- 109 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New York-Presbyterian Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10005 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Haran Sivakumar's NPI number?
The NPI number for Haran Sivakumar is 1982109740. It was assigned to this individual provider in the NPPES registry on March 26, 2018.
Where is Haran Sivakumar located?
Haran Sivakumar practices at 99 Wall St Ste 475, New York, NY 10005. The listed phone number is (917) 284-8973.
What is Haran Sivakumar's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Addiction Medicine, with taxonomy code 207QA0401X.
Is Haran Sivakumar enrolled in Medicare?
Yes. Haran 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 Haran Sivakumar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Haran Sivakumar reassigns Medicare benefits to 3 organizations: Weill Medical College Of Cornell University (New York, NY), Sharp Rees-Stealy Medical Group, Inc (San Diego, CA) and County Of Butte (Paradise, CA). 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 Haran Sivakumar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Haran Sivakumar accept?
Health plans from Oscar Health list Haran Sivakumar 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 Haran Sivakumar affiliated with any hospitals?
According to CMS data, Haran Sivakumar is affiliated with New York-Presbyterian Hospital.
When was this NPI record last updated?
The NPPES record for Haran Sivakumar was last updated on November 22, 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.
# Haran Sivakumar, MD · NPI 1982109740
Addiction Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 26, 2018.
## Identity
- **NPI:** 1982109740 (Entity type: Individual)
- **Enumerated:** March 26, 2018
- **Primary specialty:** Family Medicine - Addiction Medicine · taxonomy 207QA0401X
- **State license:** 312837 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 99 WALL ST STE 475, New York, NY 10005-4301
- **Phone:** (917) 284-8973 · **Fax:** (956) 394-1214
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Weill Medical College Of Cornell University (NPI 1801188313, New York, NY); Sharp Rees-Stealy Medical Group, Inc (NPI 1285616177, San Diego, CA); County Of Butte (NPI 1629138615, Paradise, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 2018
## Record status
- **NPPES last updated:** November 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1982109740) · Data from the CMS NPPES public registry.