RATNA B BASAK MD
NPI 1790100626
Pediatrics in Stony Brook, NY
About Ratna B Basak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RATNA B BASAK MD (NPI 1790100626) is an individual pediatrics provider in Stony Brook, New York, licensed in New York (276440) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS.
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 (PECOS)
Ratna B Basak Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Ratna Basak reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bay Shore, NY 11706
- Reassigned Medicare billing, New York enrollment
- 395 clinicians in this Medicare group
Flushing, NY 11355
- Reassigned Medicare billing, New York enrollment
- 327 clinicians in this Medicare group
Brooklyn, NY 11212
- Reassigned Medicare billing, New York enrollment
- 782 clinicians in this Medicare group
New York, NY 10041
- Reassigned Medicare billing, New York enrollment
- 79 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 11794 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STONY BROOK, NY 11794
STONY BROOK, NY 11794
STONY BROOK, NY 11794
STONY BROOK, NY 11794
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 Ratna Basak's NPI number?
The NPI number for Ratna Basak is 1790100626. It was assigned to this individual provider in the NPPES registry on March 1, 2014.
Where is Ratna Basak located?
Ratna Basak practices at 100 Nicolls Rd Level 11, Stony Brook, NY 11794. The listed phone number is (631) 444-7884.
What is Ratna Basak's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Ratna Basak enrolled in Medicare?
Yes. Ratna Basak is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ratna Basak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ratna Basak reassigns Medicare benefits to 4 organizations: Good Samaritan Hospital Medical Center (Bay Shore, NY), Flushing Hospital & Medical Center (Flushing, NY), Brookdale Hospital Medical Center (Brooklyn, NY) and Mjhs Medical Associates (New York, 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 Ratna Basak'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 Ratna Basak was last updated on January 27, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.