Kristina T. Grehan
Family Nurse Practitioner · Syosset, NY
Kristina T. Grehan is a family nurse practitioner with a practice address in Syosset, New York, and NPI 1992138218, issued on Aug 11, 2013. Check the license (New York F338161-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kristina T. Grehan
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- F338161-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2 Spruce Park, Syosset, NY 11791
- Phone
- (516) 496-2932
- Enumerated
- Aug 11, 2013
- Record last updated
- Aug 11, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 14,805 in New York → Look up another NPI →
Verify Kristina T. Grehan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license F338161-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family nurse practitioner in 2024
173 Medicare Part D claims for 64 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Metoprolol Succinate21 claims
- Spironolactone17 claims
- Eliquis15 claims
- Torsemide14 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 MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $84.79
4 payments; by number, the most common kind was food and beverage; the largest payer was Atricure, 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Kristina T. Grehan among 14,805 family nurse practitioner records in New York
Kristina T. Grehan 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 2013, is newer than 26% of them.
- NPI issued2013 · 26% of these records are older, 70% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 49% of these records are
- Record last updated2013 · 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).
26 family nurse practitioner records list a practice address in Syosset
They are 26 of the 1,054 NPPES records with a practice address in Syosset, and 14,805 family nurse practitioner records in New York.
All 14,805 in New York → Every provider in Syosset → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Brittany AndrianoSyosset, NY 117911740847516
- Sherry Bloom, FNPSyosset, NY 117911568518751
- Shana Chacko, NPSyosset, NY 117911962804963
- Roxanne Chase-Wiley, F.N.P.Syosset, NY 117911336395532
- Geocia Cijo, FNPSyosset, NY 117911396259941
- Amy Duenas-Cortes, FNPSyosset, NY 117911366838609
- Brandy Hoeck, FNP-BCSyosset, NY 117911225526965
- Sindee Loke, FNPSyosset, NY 117911669941001
Common questions
What is Kristina T. Grehan's NPI number?
Kristina T. Grehan's National Provider Identifier (NPI) is 1992138218, issued on Aug 11, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Kristina T. Grehan located?
The NPPES record lists a practice address at 2 Spruce Park, Syosset, NY, 11791. Phone: (516) 496-2932. Providers update this record themselves, so call before visiting.
How can I verify Kristina T. Grehan's license?
NPPES lists New York license number F338161-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Kristina T. Grehan prescribe under Medicare Part D?
In 2024, Kristina T. Grehan had 173 Medicare Part D claims for 64 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Kristina T. Grehan's MIPS final score?
The 2023 MIPS final score is 91.3 of 100. 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.