NPPES file of Aug 9, 2026

Krystyna Koryzma, NP-C

Family Nurse Practitioner · Oneonta, NY

Krystyna Koryzma, NP-C is a family nurse practitioner with a practice address in Oneonta, New York, and NPI 1760858674, issued on Aug 14, 2015. Check the license (New York F342399, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1760858674
Name
Krystyna Koryzma
Credential
NP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
F342399 NY
F07151355 NJ
Self-reported in NPPES; status is on the state search
Practice location
5001 State Highway 23, Oneonta, NY 13820
Phone
(607) 376-5346
Enumerated
Aug 14, 2015
Record last updated
Mar 26, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(607) 376-5347
Medicare enrollment
Enrolled (PECOS I20180413000531); 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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Also registered at 5001 State Highway 23

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

  1. Steve LeonidasGeneral Practice Dentistry1598116501

Verify Krystyna Koryzma 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 F342399
    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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40% fewer Medicare Part D claims than the average family nurse practitioner in 2024

786 Medicare Part D claims for 444 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Krystyna Koryzma786
  2. Specialty average1,305

Most prescribed

  1. Amoxicillin-Clavulanate Potass88 claims
  2. Methylprednisolone64 claims
  3. Albuterol Sulfate Hfa60 claims
  4. Cephalexin53 claims
  5. Doxycycline Hyclate52 claims
  6. Amoxicillin48 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.

Bills Medicare through one group practice

  1. Wellnow Urgent Care, P.C.Oneonta, NY

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

Krystyna Koryzma among 14,805 family nurse practitioner records in New York

Krystyna Koryzma, NP-C 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 2015, is newer than 33% of them.

  • NPI issued2015 · 33% of these records are older, 63% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 49% of these records are
  • Graduated2015 · median 2019 among the 7,239 with a school on file
  • Record last updated2018 · 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).

41 family nurse practitioner records list a practice address in Oneonta

They are 41 of the 508 NPPES records with a practice address in Oneonta, and 14,805 family nurse practitioner records in New York.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Lori Baldanza, FNPOneonta, NY 138201144509845
  2. Beth Beaudet, F.N.P.Oneonta, NY 138201730131400
  3. Nancy Codd-Cook, F.N.P., P.H.D.Oneonta, NY 138201548212210
  4. Amy Gardner, FNP-COneonta, NY 138201063791499
  5. Maryanne Kehoe, FNPOneonta, NY 138201841330818
  6. Linda Lofrumento, NPOneonta, NY 138201730338633
  7. Mary Mancuso, FNPOneonta, NY 138201295887628
  8. Margret Mukai, FNPOneonta, NY 138201871800680

Common questions

What is Krystyna Koryzma, NP-C's NPI number?

Krystyna Koryzma, NP-C's National Provider Identifier (NPI) is 1760858674, issued on Aug 14, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Krystyna Koryzma, NP-C located?

The NPPES record lists a practice address at 5001 State Highway 23, Oneonta, NY, 13820. Phone: (607) 376-5346. Providers update this record themselves, so call before visiting.

How can I verify Krystyna Koryzma, NP-C's license?

NPPES lists New York license number F342399, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Krystyna Koryzma, NP-C prescribe under Medicare Part D?

In 2024, Krystyna Koryzma, NP-C had 786 Medicare Part D claims for 444 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

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.