NPPES file of Aug 9, 2026

Melissa L. Korosec, FNP

Nurse Practitioner · Johnson City, NY

Melissa L. Korosec, FNP is a nurse practitioner with a practice address in Johnson City, New York, and NPI 1548518400, issued on Aug 27, 2012. Check the license (New York F337534-1, 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
1548518400
Name
Melissa L. Korosec
Credential
FNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
F337534-1 NY
Self-reported in NPPES; status is on the state search
Practice location
30 Harrison St., Johnson City, NY 13790
Phone
(607) 770-8600
Enumerated
Aug 27, 2012
Record last updated
May 10, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(607) 770-0853
Medicare enrollment
Enrolled (PECOS I20121016000305); accepts Medicare assignment
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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Verify Melissa L. Korosec 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 F337534-1
    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
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5.4 times the Medicare Part D claims of the average nurse practitioner in 2024

5,936 Medicare Part D claims for 1,657 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Melissa Korosec5,936
  2. Specialty average1,109

Most prescribed

  1. Metoprolol Succinate903 claims
  2. Atorvastatin Calcium699 claims
  3. Eliquis543 claims
  4. Carvedilol298 claims
  5. Amlodipine Besylate276 claims
  6. Rosuvastatin Calcium202 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): 81.3 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 score73.6
  2. Costout of 100 · 30%64.9
  3. Promoting interoperabilityout of 100 · 25%95.0
  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: $363.81

12 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Melissa Korosec$363.81
  2. Specialty average$791.64

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

Bills Medicare through one group practice

  1. Our Lady OF Lourdes Memorial Hospital IncBinghamton, NY

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

Melissa L. Korosec among 3,097 nurse practitioner records in New York

Melissa L. Korosec, FNP is one of 3,097 nurse practitioner records with a practice address in New York. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 48% of them.

  • NPI issued2012 · 48% of these records are older, 50% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2012 · median 2017 among the 1,360 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 nurse practitioner records list a practice address in Johnson City

They are 17 of the 949 NPPES records with a practice address in Johnson City, and 3,097 nurse practitioner records in New York.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Brenda Carr, FNP-CJohnson City, NY 137901588911341
  2. Eleanor Conroy, MS CRNPJohnson City, NY 137901447294038
  3. Stacey Coon-Walsh, CRNPJohnson City, NY 137901376949941
  4. Maureen Daws, FNPJohnson City, NY 137901356586580
  5. Spring Fauci, FNP-CJohnson City, NY 137901194178244
  6. Donna Gardner, FNPJohnson City, NY 137901821089517
  7. Cheryl Gauzer, NPJohnson City, NY 137901972646628
  8. Kristen Lewis, FNPJohnson City, NY 137901467404152

Common questions

What is Melissa L. Korosec, FNP's NPI number?

Melissa L. Korosec, FNP's National Provider Identifier (NPI) is 1548518400, issued on Aug 27, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Melissa L. Korosec, FNP located?

The NPPES record lists a practice address at 30 Harrison St., Johnson City, NY, 13790. Phone: (607) 770-8600. Providers update this record themselves, so call before visiting.

How can I verify Melissa L. Korosec, FNP's license?

NPPES lists New York license number F337534-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Melissa L. Korosec, FNP prescribe under Medicare Part D?

In 2024, Melissa L. Korosec, FNP had 5,936 Medicare Part D claims for 1,657 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

What is Melissa L. Korosec, FNP's MIPS final score?

The 2023 MIPS final score is 81.3 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.