DR. JOHN TOKSOY M. D.
NPI 1396773511
Internal Medicine in New Haven, CT
About Dr. John Toksoy M. D. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN TOKSOY M. D. (NPI 1396773511) is an individual internal medicine provider in New Haven, Connecticut, licensed in Connecticut (038460) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of State University Of New York At Stony Brook, School Of Medicine (1997).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Dr. John Toksoy M. D. 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 John Toksoy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Haven, CT 06511
- Reassigned Medicare billing, Connecticut enrollment
- 149 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 06520 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
NEW HAVEN, CT 06520
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 Toksoy's NPI number?
The NPI number for John Toksoy is 1396773511. It was assigned to this individual provider in the NPPES registry on June 28, 2006.
Where is John Toksoy located?
John Toksoy practices at 55 Lock Street, New Haven, CT 06520. The listed phone number is (203) 432-0076.
What is John Toksoy's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Toksoy enrolled in Medicare?
Yes. John Toksoy 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 John Toksoy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Toksoy reassigns Medicare benefits to Yale University (New Haven, CT). 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 Toksoy'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 Toksoy was last updated on February 25, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. John Toksoy, M. D. · NPI 1396773511
Internal Medicine physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since June 28, 2006.
## Identity
- **NPI:** 1396773511 (Entity type: Individual)
- **Enumerated:** June 28, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 038460 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 LOCK STREET, New Haven, CT 06520-8237
- **Phone:** (203) 432-0076 · **Fax:** (203) 432-7289
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Yale University (NPI 1093862740, New Haven, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Stony Brook, School Of Medicine, class of 1997
## Record status
- **NPPES last updated:** February 25, 2011
- **Other identifiers:** Medicare UPIN H17479 (CT)
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Source: [NPI Profile](https://npiprofile.com/npi/1396773511) · Data from the CMS NPPES public registry.