DR. BRENDAN JOHN GUERCIO M.D.
NPI 1508247735
Internal Medicine in Rochester, NY
About Dr. Brendan John Guercio M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRENDAN JOHN GUERCIO M.D. (NPI 1508247735) is an individual internal medicine provider in Rochester, New York, licensed in New York (297753) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with F F Thompson Hospital, and is a graduate of Harvard Medical School (2015).
NPPES Registry Identity
Specialties & Licenses 2
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. Brendan John Guercio 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 Reassignments
2Medicare enrollment records show Brendan Guercio reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, NY 14642
- Reassigned Medicare billing, New York enrollment
- 154 clinicians in this Medicare group
Rochester, NY 14642
- Reassigned Medicare billing, New York enrollment
- 1,624 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 4
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
F F Thompson Hospital
Acute Care Hospitals · Canandaigua, NYHighland Hospital
Acute Care Hospitals · Rochester, NYNicholas H Noyes Memorial Hospital
Acute Care Hospitals · Dansville, NYStrong Memorial Hospital
Acute Care Hospitals · Rochester, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14642 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.
ROCHESTER, NY 14642
ROCHESTER, NY 14642
ROCHESTER, NY 14642
ROCHESTER, NY 14642
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 Brendan Guercio's NPI number?
The NPI number for Brendan Guercio is 1508247735. It was assigned to this individual provider in the NPPES registry on June 12, 2015.
Where is Brendan Guercio located?
Brendan Guercio practices at 601 Elmwood Ave, Rochester, NY 14642. The listed phone number is (585) 275-5823.
What is Brendan Guercio's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Brendan Guercio enrolled in Medicare?
Yes. Brendan Guercio 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 Brendan Guercio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brendan Guercio reassigns Medicare benefits to 2 organizations: Hematology Clinical Group (Rochester, NY) and University Of Rochester (Rochester, 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 Brendan Guercio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Brendan Guercio affiliated with any hospitals?
According to CMS data, Brendan Guercio is affiliated with F F Thompson Hospital, Highland Hospital, Nicholas H Noyes Memorial Hospital and Strong Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Brendan Guercio was last updated on July 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Brendan John Guercio, M.D. · NPI 1508247735
Internal Medicine physician in Rochester, New York. Individual provider, active in the CMS NPPES registry since June 12, 2015.
## Identity
- **NPI:** 1508247735 (Entity type: Individual)
- **Enumerated:** June 12, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 297753 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 601 ELMWOOD AVE, Rochester, NY 14642-0001
- **Phone:** (585) 275-5823
## 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): Hematology Clinical Group (NPI 1821049396, Rochester, NY); University Of Rochester (NPI 1346285657, Rochester, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2015
## Record status
- **NPPES last updated:** July 17, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1508247735) · Data from the CMS NPPES public registry.