NPPES file of Aug 9, 2026

Courtney L. Grier, NP

Nurse Practitioner · Elmira, NY

Courtney L. Grier, NP is a nurse practitioner with a practice address in Elmira, New York, and NPI 1063994325, issued on Sep 4, 2018. Check the license (New York 343516, 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
1063994325
Name
Courtney L. Grier
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
343516 NY
Self-reported in NPPES; status is on the state search
Practice location
600 Roe Ave, Elmira, NY 14905
Phone
(607) 737-7770
Enumerated
Sep 4, 2018
Record last updated
Sep 4, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(607) 271-3686
Medicare enrollment
Enrolled (PECOS I20181004001741); 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 600 Roe Ave

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

  1. Reham Abukhalifa, MDStudent in an Organized Health Care Education/Training Program1992465116
  2. Edwin Acosta, M.D.Diagnostic Radiology Physician1255309985
  3. Margaret Adofo, MDStudent in an Organized Health Care Education/Training Program1164845780
  4. Francis Agyemang, MDStudent in an Organized Health Care Education/Training Program1851033583
  5. Sarfaraz AhmadStudent in an Organized Health Care Education/Training Program1952241200
  6. Inam Ahmed, MDStudent in an Organized Health Care Education/Training Program1902747389

Verify Courtney L. Grier 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 343516
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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72% fewer Medicare Part D claims than the average nurse practitioner in 2024

316 Medicare Part D claims for 233 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Courtney Grier316
  2. Specialty average1,109

Most prescribed

  1. Doxycycline Hyclate41 claims
  2. Amoxicillin-Clavulanate Potass36 claims
  3. Nitrofurantoin Mono-Macro34 claims
  4. Prednisone28 claims
  5. Amoxicillin21 claims
  6. Methylprednisolone12 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 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 score62.5
  2. Costout of 100 · 30%65.8
  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: $92.84

1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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. Courtney Grier$92.84
  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. Wellnow Urgent Care, P.C.Elmira, NY

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

Courtney L. Grier among 3,097 nurse practitioner records in New York

Courtney L. Grier, NP 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 2018, is newer than 64% of them.

  • NPI issued2018 · 64% of these records are older, 32% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2018 · median 2017 among the 1,360 with a school on file
  • Record last updated2018 · 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).

29 nurse practitioner records list a practice address in Elmira

They are 29 of the 1,746 NPPES records with a practice address in Elmira, and 3,097 nurse practitioner records in New York.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Sarah Brimmer, NPElmira, NY 149051811416589
  2. Mandy Clark, NPElmira, NY 149051740616846
  3. Phebe Cole, NP-CElmira, NY 149051447415682
  4. Eileen Feltner, NPElmira, NY 149051861462731
  5. Sharon Ferguson, NPElmira, NY 149051083992093
  6. Kristine Hill, NPElmira, NY 149051427109784
  7. Teri Martin, F.N.P.Elmira, NY 149051619976933
  8. Janet Martin, FNP-CElmira, NY 149051952341620

Common questions

What is Courtney L. Grier, NP's NPI number?

Courtney L. Grier, NP's National Provider Identifier (NPI) is 1063994325, issued on Sep 4, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Courtney L. Grier, NP located?

The NPPES record lists a practice address at 600 Roe Ave, Elmira, NY, 14905. Phone: (607) 737-7770. Providers update this record themselves, so call before visiting.

How can I verify Courtney L. Grier, NP's license?

NPPES lists New York license number 343516, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Courtney L. Grier, NP prescribe under Medicare Part D?

In 2024, Courtney L. Grier, NP had 316 Medicare Part D claims for 233 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

What is Courtney L. Grier, NP's MIPS final score?

The 2023 MIPS final score is 81 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.