NPPES file of Aug 9, 2026

Carolyn Difonzo, F.N.P.

Family Nurse Practitioner · Niagara Falls, NY

Carolyn Difonzo, F.N.P. is a family nurse practitioner with a practice address in Niagara Falls, New York, and NPI 1831115096, issued on Jul 14, 2006. Check the license (New York F 334650 1, as entered in NPPES) with the New York board that licenses this profession; 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
1831115096
Name
Carolyn Difonzo
Credential
F.N.P.
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
F 334650 1 NY
Self-reported in NPPES; status is on the state search
Practice location
7350 Porter RD, Niagara Falls, NY 14304
Phone
(716) 332-1644
Enumerated
Jul 14, 2006
Record last updated
Jul 18, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(716) 299-0775
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Carolyn Difonzo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license F 334650 1
    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
Find the New York license search

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95% fewer Medicare Part D claims than the average family nurse practitioner in 2024

59 Medicare Part D claims for 40 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Carolyn Difonzo59
  2. Specialty average1,305

Most prescribed

  1. Methylprednisolone27 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): 87.3 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 score75.9
  2. Costout of 100 · 30%79.2
  3. Promoting interoperabilityout of 100 · 25%99.0
  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: $18.17

1 payment: food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carolyn Difonzo$18.17
  2. Specialty average$650.95

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

Carolyn Difonzo among 14,805 family nurse practitioner records in New York

Carolyn Difonzo, F.N.P. is one of 14,805 family nurse practitioner records with a practice address in New York. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 91% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 49% of these records are
  • Record last updated2016 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

38 family nurse practitioner records list a practice address in Niagara Falls

They are 38 of the 1,100 NPPES records with a practice address in Niagara Falls, and 14,805 family nurse practitioner records in New York.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Rebecca Balone, FNPNiagara Falls, NY 143041518424845
  2. Christopher Barone, NPNiagara Falls, NY 143041114470390
  3. Jeannette Buscaglia, FNPNiagara Falls, NY 143041508322850
  4. Jennifer Cage, RN, FNPNiagara Falls, NY 143041699308759
  5. Johnna Coleman, FNPNiagara Falls, NY 143041578077590
  6. Margaret Desmarais, FNPNiagara Falls, NY 143041164478574
  7. Rachelle Fleming, FNPNiagara Falls, NY 143041114437720
  8. Mary Haney, NPNiagara Falls, NY 143041083670293

Common questions

What is Carolyn Difonzo, F.N.P.'s NPI number?

Carolyn Difonzo, F.N.P.'s National Provider Identifier (NPI) is 1831115096, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn Difonzo, F.N.P. located?

The NPPES record lists a practice address at 7350 Porter RD, Niagara Falls, NY, 14304. Phone: (716) 332-1644. Providers update this record themselves, so call before visiting.

How can I verify Carolyn Difonzo, F.N.P.'s license?

NPPES lists New York license number F 334650 1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Carolyn Difonzo, F.N.P. prescribe under Medicare Part D?

In 2024, Carolyn Difonzo, F.N.P. had 59 Medicare Part D claims for 40 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Carolyn Difonzo, F.N.P.'s MIPS final score?

The 2023 MIPS final score is 87.3 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.