AHMAR BUTT MD
NPI 1619983871
Internal Medicine in Brooklyn, NY
About Ahmar Butt Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AHMAR BUTT MD (NPI 1619983871) is an individual internal medicine provider in Brooklyn, New York, licensed in New York (196291) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Brooklyn Hospital Center - Downtown Campus, and is a graduate of Other (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Ahmar Butt 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 Reassignment
Medicare enrollment records show Ahmar Butt reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brooklyn, NY 11201
- Reassigned Medicare billing, New York enrollment
- 53 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 10
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.
Brooklyn Hospital Center - Downtown Campus
Acute Care Hospitals · Brooklyn, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11238 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 8
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROOKLYN, NY 11238
BROOKLYN, NY 11238
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 Ahmar Butt's NPI number?
The NPI number for Ahmar Butt is 1619983871. It was assigned to this individual provider in the NPPES registry on July 31, 2006.
Where is Ahmar Butt located?
Ahmar Butt practices at 55 Greene Ave, Brooklyn, NY 11238. The listed phone number is (917) 763-5690.
What is Ahmar Butt's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Ahmar Butt enrolled in Medicare?
Yes. Ahmar Butt 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 organization bills Medicare for Ahmar Butt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ahmar Butt reassigns Medicare benefits to Tbhc Medical Services PC (Brooklyn, NY). The 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 Ahmar Butt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ahmar Butt affiliated with any hospitals?
According to CMS data, Ahmar Butt is affiliated with Brooklyn Hospital Center - Downtown Campus.
When was this NPI record last updated?
The NPPES record for Ahmar Butt was last updated on August 16, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.