NPPES file of Aug 9, 2026

Nicole Grehn, AGPCNP-C

Adult Health Nurse Practitioner · Brightwaters, NY

Nicole Grehn, AGPCNP-C is an adult health nurse practitioner with a practice address in Brightwaters, New York, and NPI 1528729563, issued on Jan 3, 2022. Check the license (New York F310519, 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
1528729563
Name
Nicole Grehn
Credential
AGPCNP-C
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License numbers
F310519 NY
801426 NY
Self-reported in NPPES; status is on the state search
Practice location
234 Orinoco Dr, Brightwaters, NY 11718
Phone
(631) 300-0797
Enumerated
Jan 3, 2022
Record last updated
Jan 3, 2022
Fax
(631) 647-8429
Medicare enrollment
Enrolled (PECOS I20220225001724); 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 234 Orinoco Dr

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

  1. Gary HansonPhysical Therapist1437923661
  2. Paulinder Rai, DO, MPHPhysical Medicine & Rehabilitation Physician1568604478
  3. Alexandria RenierisOccupational Therapist1760165526

Verify Nicole Grehn 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 F310519
    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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88% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

157 Medicare Part D claims for 58 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 32 claims were for opioids.

  1. Nicole Grehn157
  2. Specialty average1,280

Most prescribed

  1. Gabapentin51 claims
  2. Clotrimazole-Betamethasone29 claims
  3. Tramadol Hcl12 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): 5.7 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.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%18.9
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Bills Medicare through one group practice

  1. Physical Medicine And Rehabilitation OF Long IslandBrightwaters, NY

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

2 adult health nurse practitioner records list a practice address in Brightwaters

They are 2 of the 65 NPPES records with a practice address in Brightwaters, and 6,028 adult health nurse practitioner records in New York.

Other adult health nurse practitioner records in New York

  1. Sandy Aaron, NURSE PRACTITIONERBrooklyn, NY1073251534
  2. Vincent AbalajonElmhurst, NY1801340625
  3. Akosua Abankwah, NPNew York, NY1619281748
  4. Megan Abate, ANPNew York, NY1790944189
  5. Omowunmi Abayomi, N.P.Staten Island, NY1790140770
  6. Ashley Abbatantono, NPNew York, NY1740069079
  7. Christine Abbate, MSN, APRN, AGPCNP-BCHampton Bays, NY1629732680
  8. Dea Abbene, NPStony Brook, NY1457511958
  9. Nicole Abbene, NPEast Northport, NY1326877168
  10. Zahra Abdallah, RNElmhurst, NY1407680309

Common questions

What is Nicole Grehn, AGPCNP-C's NPI number?

Nicole Grehn, AGPCNP-C's National Provider Identifier (NPI) is 1528729563, issued on Jan 3, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Nicole Grehn, AGPCNP-C located?

The NPPES record lists a practice address at 234 Orinoco Dr, Brightwaters, NY, 11718. Phone: (631) 300-0797. Providers update this record themselves, so call before visiting.

How can I verify Nicole Grehn, AGPCNP-C's license?

NPPES lists New York license number F310519, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Nicole Grehn, AGPCNP-C prescribe under Medicare Part D?

In 2024, Nicole Grehn, AGPCNP-C had 157 Medicare Part D claims for 58 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

What is Nicole Grehn, AGPCNP-C's MIPS final score?

The 2023 MIPS final score is 5.7 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.