JOHN C BUCUVALAS M.D.
NPI 1821025511
Pediatrics - Pediatric Gastroenterology in New York, NY
About John C Bucuvalas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN C BUCUVALAS M.D. (NPI 1821025511) is an individual pediatric gastroenterology provider in New York, New York, licensed in New York (292591) and active in the NPI registry since June 2006. He 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)
John C Bucuvalas M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Bucuvalas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 78 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 10029 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 16
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 John Bucuvalas's NPI number?
The NPI number for John Bucuvalas is 1821025511. It was assigned to this individual provider in the NPPES registry on June 27, 2006.
Where is John Bucuvalas located?
John Bucuvalas practices at 5 E 98th St Fl 10, New York, NY 10029. The listed phone number is (212) 659-8060.
What is John Bucuvalas's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.
Is John Bucuvalas enrolled in Medicare?
Yes. John Bucuvalas is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Bucuvalas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Bucuvalas reassigns Medicare benefits to Icahn School Of Medicine At Mount Sinai (New York, 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 John Bucuvalas'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 John Bucuvalas was last updated on May 6, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# John C Bucuvalas, M.D. · NPI 1821025511
Pediatric Gastroenterology physician in New York, New York. Individual provider, active in the CMS NPPES registry since June 27, 2006.
## Identity
- **NPI:** 1821025511 (Entity type: Individual)
- **Enumerated:** June 27, 2006
- **Primary specialty:** Pediatrics - Pediatric Gastroenterology · taxonomy 2080P0206X
- **State license:** 292591 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 5 E 98TH ST FL 10, New York, NY 10029-6501
- **Phone:** (212) 659-8060
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Icahn School Of Medicine At Mount Sinai (NPI 1588937064, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 6, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1821025511) · Data from the CMS NPPES public registry.