Claire Greenblatt, NP
Adult Health Nurse Practitioner · Roslyn, NY
Claire Greenblatt, NP is an adult health nurse practitioner with a practice address in Roslyn, New York, and NPI 1881147221, issued on Aug 2, 2016. Check the license (New York F307849-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Claire Greenblatt
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- F307849-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 100 Port Washington Blvd, Roslyn, NY 11576
- Phone
- (516) 390-9640
- Enumerated
- Aug 2, 2016
- Record last updated
- Aug 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161123000566); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 6,028 in New York → Look up another NPI →
Also registered at 100 Port Washington Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Claire Greenblatt 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 F307849-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
127 Medicare Part D claims for 59 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D.
Most prescribed
- Prasugrel Hcl40 claims
- Clopidogrel24 claims
- Atorvastatin Calcium11 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.
Industry payments in 2024: $264.49
7 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 12,291 providers of this specialty with any payment received $946.40 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.
Bills Medicare through one group practice
- Chs Physician Partners PCRoslyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Claire Greenblatt among 6,028 adult health nurse practitioner records in New York
Claire Greenblatt, NP is one of 6,028 adult health nurse practitioner records with a practice address in New York. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 57% of them.
- NPI issued2016 · 57% of these records are older, 39% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated2016 · median 2016 among the 2,678 with a school on file
- Record last updated2016 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
57 adult health nurse practitioner records list a practice address in Roslyn
They are 57 of the 744 NPPES records with a practice address in Roslyn, and 6,028 adult health nurse practitioner records in New York.
All 6,028 in New York → Every provider in Roslyn → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Maria Bernstein, ANPRoslyn, NY 115761902818339
- Debra Chalmers, NPRoslyn, NY 115761588658876
- Ann Fioresi, APRNRoslyn, NY 115761801808936
- Kimberly Go, ANPRoslyn, NY 115761912919036
- Patricia Keller, ANPRoslyn, NY 115761295884690
- Eileen Kenney, ANPRoslyn, NY 115761750401956
- Maura Kenney- Kieran, A.N.P.-CRoslyn, NY 115761376549725
- Maura Kieran, NPRoslyn, NY 115761649444373
Common questions
What is Claire Greenblatt, NP's NPI number?
Claire Greenblatt, NP's National Provider Identifier (NPI) is 1881147221, issued on Aug 2, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Claire Greenblatt, NP located?
The NPPES record lists a practice address at 100 Port Washington Blvd, Roslyn, NY, 11576. Phone: (516) 390-9640. Providers update this record themselves, so call before visiting.
How can I verify Claire Greenblatt, NP's license?
NPPES lists New York license number F307849-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Claire Greenblatt, NP prescribe under Medicare Part D?
In 2024, Claire Greenblatt, NP had 127 Medicare Part D claims for 59 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.