MADHUMATI R KALAVAR, MD, PC
NPI 1912106964
Internal Medicine - Hematology & Oncology in Brooklyn, NY
About Madhumati R Kalavar, Md, Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MADHUMATI R KALAVAR, MD, PC (NPI 1912106964) is a healthcare organization registered as a hematology & oncology in Brooklyn, New York and active in the NPI registry since July 2007. The organization lists Madhumati R Kalavar, Doctor, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Madhumati R Kalavar, Md, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by February 28, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Madhumati R Kalavar, MD, 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 Madhumati R Kalavar, MD, PC's NPI number?
The NPI number for Madhumati R Kalavar, MD, PC is 1912106964. It was assigned to this organization in the NPPES registry on July 11, 2007.
Where is Madhumati R Kalavar, MD, PC located?
Madhumati R Kalavar, MD, PC is located at 566 Schenectady Ave, Brooklyn, NY 11203. The listed phone number is (718) 483-8360.
What is Madhumati R Kalavar, MD, PC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Madhumati R Kalavar, MD, PC enrolled in Medicare?
Yes. Madhumati R Kalavar, MD, PC is registered in the Medicare PECOS enrollment system.
When is Madhumati R Kalavar, MD, PC's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (New York, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Madhumati R Kalavar, MD, PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Hematology) reassigns their Medicare billing to Madhumati R Kalavar, MD, 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 Madhumati R Kalavar, MD, PC was last updated on November 20, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Madhumati R Kalavar, Md, Pc · NPI 1912106964
Hematology & Oncology organization in Brooklyn, New York. Organization record, active in the CMS NPPES registry since July 11, 2007.
## Identity
- **NPI:** 1912106964 (Entity type: Organization)
- **Enumerated:** July 11, 2007
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **Organization subpart:** No
- **Authorized official:** Madhumati Kalavar, DOCTOR
## Practice location
- **Address:** 566 SCHENECTADY AVE, Brooklyn, NY 11203-1821
- **Phone:** (718) 483-8360
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (Non-DME Part B, New York, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Hematology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 20, 2014
- **Other identifiers:** Medicare UPIN G11740 (NY); Medicare PIN 44J481 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1912106964) · Data from the CMS NPPES public registry.