NPPES file of Aug 9, 2026

Brendan John Guercio, M.D.

Internal Medicine Physician · Rochester, NY

Brendan John Guercio, M.D. is an internal medicine physician with a practice address in Rochester, New York, and NPI 1508247735, issued on Jun 12, 2015. Check the license (New York 297753, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508247735
Name
Brendan John Guercio
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
297753 NY
263737 MA
273129 MA
Self-reported in NPPES; status is on the state search
Practice location
601 Elmwood Ave, Rochester, NY 14642
Phone
(585) 275-5823
Enumerated
Jun 12, 2015
Record last updated
Jul 17, 2023
Medicare enrollment
Enrolled (PECOS I20220513001010); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 2015
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 601 Elmwood Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Asli Saba Abaci, M.D.Child & Adolescent Psychiatry Physician1538100961
  2. Syed Faiz Abbas, MDCardiovascular Disease Physician1316557853
  3. Asim Abbasi, MDPediatric Emergency Medicine (Pediatrics) Physician1336155456
  4. Cameron Abbey-Mott, PHARMDSolid Organ Transplant Pharmacist1124953625
  5. Jessica Abbott, PHARMD, RPHPharmacist1548120272
  6. Maisa Abdalla, M.D.Gastroenterology Physician1669645222

Verify Brendan John Guercio in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 297753
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% fewer Medicare Part D claims than the average internal medicine physician in 2024

713 Medicare Part D claims for 139 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims. 26 claims were for opioids.

  1. Brendan Guercio713
  2. Specialty average3,176

Most prescribed

  1. Prochlorperazine Maleate66 claims
  2. Orgovyx53 claims
  3. Xtandi50 claims
  4. Nubeqa42 claims
  5. Bicalutamide40 claims
  6. Ondansetron Hcl35 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score68.2
  2. Costout of 100 · 30%42.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,100.11

3 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Scientific Affairs, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brendan Guercio$1,100.11
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Hematology Clinical GroupRochester, NY
  2. University OF RochesterRochester, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brendan John Guercio among 12,067 internal medicine physician records in New York

Brendan John Guercio, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 75% of them.

  • NPI issued2015 · 75% of these records are older, 23% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2015 · median 2002 among the 7,221 with a school on file
  • Record last updated2023 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

504 internal medicine physician records list a practice address in Rochester

They are 504 of the 20,520 NPPES records with a practice address in Rochester, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Clayton Baker, MDRochester, NY 146421780613216
  2. Marc Berliant, MDRochester, NY 146421154324317
  3. Donald Bordley, MDRochester, NY 146421740205095
  4. Nancy Clark, M.D.Rochester, NY 146421538198866
  5. Elizabeth Edwardsen, M.D.Rochester, NY 146421306862644
  6. Aniko Fellegi, M.D.Rochester, NY 146421457343667
  7. John Grable, MDRochester, NY 146421427090026
  8. Catherine Gracey, MDRochester, NY 146421336185917

Common questions

What is Brendan John Guercio, M.D.'s NPI number?

Brendan John Guercio, M.D.'s National Provider Identifier (NPI) is 1508247735, issued on Jun 12, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Brendan John Guercio, M.D. located?

The NPPES record lists a practice address at 601 Elmwood Ave, Rochester, NY, 14642. Phone: (585) 275-5823. Providers update this record themselves, so call before visiting.

How can I verify Brendan John Guercio, M.D.'s license?

NPPES lists New York license number 297753, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brendan John Guercio, M.D. prescribe under Medicare Part D?

In 2024, Brendan John Guercio, M.D. had 713 Medicare Part D claims for 139 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Brendan John Guercio, M.D.'s MIPS final score?

The 2023 MIPS final score is 76.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.