MARIA KONTOS DO
NPI 1003302910
Internal Medicine in Williamsville, NY
About Maria Kontos Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIA KONTOS DO (NPI 1003302910) is an individual internal medicine provider in Williamsville, New York, licensed in New York (310624-01) and active in the NPI registry since July 2018. 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)
Maria Kontos Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Maria Kontos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Williamsville, NY 14221
- Reassigned Medicare billing, New York enrollment
- 344 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 15
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14221 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.
WILLIAMSVILLE, NY 14221
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 Maria Kontos's NPI number?
The NPI number for Maria Kontos is 1003302910. It was assigned to this individual provider in the NPPES registry on July 3, 2018.
Where is Maria Kontos located?
Maria Kontos practices at 325 Essjay Rd, Williamsville, NY 14221. The listed phone number is (716) 656-4463.
What is Maria Kontos's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Maria Kontos enrolled in Medicare?
Yes. Maria Kontos is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Maria Kontos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Kontos reassigns Medicare benefits to Buffalo Medical Group, P.C. (Williamsville, 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 Maria Kontos'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 Maria Kontos was last updated on December 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.