DR. JOHN TSOURIS D.P.M.
NPI 1225032097
Podiatrist - Foot Surgery in Lake Grove, NY
About Dr. John Tsouris D.p.m. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN TSOURIS D.P.M. (NPI 1225032097) is an individual foot surgery provider in Lake Grove, New York, licensed in New York (N004604) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with John T Mather Memorial Hospital Of Port Jefferson, and is a graduate of New York College Of Podiatric Medicine (1989).
NPPES Registry Identity
Specialties & Licenses 4
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
Dr. John Tsouris D.p.m. 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 Reassignments
2Medicare enrollment records show John Tsouris reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Smithtown, NY 11787
- Reassigned Medicare billing, New York enrollment
- 70 clinicians in this Medicare group
New York, NY 10016
- Reassigned Medicare billing, New York enrollment
- 6 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 11
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.
John T Mather Memorial Hospital Of Port Jefferson
Acute Care Hospitals · Port Jefferson, NYMedicare 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.
LAKE GROVE, NY 11755
LAKE GROVE, NY 11755
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 Tsouris's NPI number?
The NPI number for John Tsouris is 1225032097. It was assigned to this individual provider in the NPPES registry on June 9, 2005.
Where is John Tsouris located?
John Tsouris practices at 2233 Nesconset Hwy Suite 206, Lake Grove, NY 11755. The listed phone number is (631) 751-4603.
What is John Tsouris's specialty?
The primary specialty registered for this NPI is Podiatrist, specializing in Foot Surgery, with taxonomy code 213ES0131X.
Is John Tsouris enrolled in Medicare?
Yes. John Tsouris 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 organizations bill Medicare for John Tsouris's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Tsouris reassigns Medicare benefits to 2 organizations: Long Island Select Healthcare, Inc. (Smithtown, NY) and Ernest L Isaacson DPM PC (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 John Tsouris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Tsouris affiliated with any hospitals?
According to CMS data, John Tsouris is affiliated with John T Mather Memorial Hospital Of Port Jefferson.
When was this NPI record last updated?
The NPPES record for John Tsouris was last updated on October 16, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 Tsouris, D.P.M. · NPI 1225032097
Foot Surgery provider in Lake Grove, New York. Individual provider, active in the CMS NPPES registry since June 9, 2005.
## Identity
- **NPI:** 1225032097 (Entity type: Individual)
- **Enumerated:** June 9, 2005
- **Primary specialty:** Podiatrist - Foot Surgery · taxonomy 213ES0131X
- **State license:** N004604 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2233 NESCONSET HWY, SUITE 206, Lake Grove, NY 11755-1000
- **Phone:** (631) 751-4603 · **Fax:** (631) 751-8166
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Long Island Select Healthcare, Inc. (NPI 1235684127, Smithtown, NY); Ernest L Isaacson DPM PC (NPI 1396948188, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York College Of Podiatric Medicine, class of 1989
## Record status
- **NPPES last updated:** October 16, 2014
- **Other identifiers:** Medicare UPIN U11181 (NY); Medicare PIN P5120P1421 (NY); Medicare ID-Type Unspecified P5120-1 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1225032097) · Data from the CMS NPPES public registry.