DR. WILLIAM ROBERT GESZTES MD, MSC
NPI 1477016582
Pathology - Anatomic Pathology & Clinical Pathology in Wethersfield, CT
About Dr. William Robert Gesztes Md, Msc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM ROBERT GESZTES MD, MSC (NPI 1477016582) is an individual anatomic pathology & clinical pathology provider in Wethersfield, Connecticut, licensed in Connecticut (85990) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Northern Westchester Hospital, and maintains a secondary practice location in Washington.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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. William Robert Gesztes Md, Msc 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 William Gesztes reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 417 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Westchester Hospital
Acute Care Hospitals · Mount Kisco, NYPhelps Hospital
Acute Care Hospitals · Sleepy Hollow, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06109 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WETHERSFIELD, CT 06109
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 William Gesztes's NPI number?
The NPI number for William Gesztes is 1477016582. It was assigned to this individual provider in the NPPES registry on April 8, 2019.
Where is William Gesztes located?
William Gesztes practices at 1290 Silas Deane Hwy Ste 101, Wethersfield, CT 06109. The listed phone number is (860) 859-9061.
What is William Gesztes's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is William Gesztes enrolled in Medicare?
Yes. William Gesztes 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 William Gesztes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Gesztes reassigns Medicare benefits to 2 organizations: Connecticut Gi PLLC (Hartford, CT) and North Shore-Lij Medical PC (Great Neck, 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 William Gesztes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Gesztes affiliated with any hospitals?
According to CMS data, William Gesztes is affiliated with Northern Westchester Hospital and Phelps Hospital.
When was this NPI record last updated?
The NPPES record for William Gesztes was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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. William Robert Gesztes, MD, MSC · NPI 1477016582
Anatomic Pathology & Clinical Pathology physician in Wethersfield, Connecticut. Individual provider, active in the CMS NPPES registry since April 8, 2019.
## Identity
- **NPI:** 1477016582 (Entity type: Individual)
- **Enumerated:** April 8, 2019
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** 85990 (Connecticut)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1290 SILAS DEANE HWY STE 101, Wethersfield, CT 06109-4337
- **Phone:** (860) 859-9061 · **Fax:** (860) 889-6200
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Connecticut Gi PLLC (NPI 1023124625, Hartford, CT); North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** July 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1477016582) · Data from the CMS NPPES public registry.