Ellen Sierra, P.A.
Physician Assistant · Oceanside, NY
Ellen Sierra, P.A. is a physician assistant with a practice address in Oceanside, New York, and NPI 1790761732, issued on Dec 21, 2005. Check the license (New York 009114-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellen Sierra
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 009114-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Healthy Way, Oceanside, NY 11572
- Phone
- (516) 632-3900
- Enumerated
- Dec 21, 2005
- Record last updated
- Jun 5, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040624000811); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 15,555 in New York → Look up another NPI →
Also registered at 1 Healthy Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Geraldine Abbey-Mensah, M.D.Vascular & Interventional Radiology Physician1447530167
- Gabrielle Abbott, PAPhysician Assistant1669158036
- Batool Abiad, DOStudent in an Organized Health Care Education/Training Program1932040359
- Wray AdamsCertified Registered Nurse Anesthetist1548598675
- Anubhav Agarwal, MDSports Medicine (Family Medicine) Physician1568709244
- Brody Agres, PA-CMedical Physician Assistant1689470502
Verify Ellen Sierra 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 009114-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average physician assistant in 2024
569 Medicare Part D claims for 470 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass58 claims
- Ciprofloxacin Hcl45 claims
- Albuterol Sulfate Hfa40 claims
- Nitrofurantoin Mono-Macro36 claims
- Prednisone36 claims
- Paxlovid33 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): 76.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- City Medical OF Upper East Side PLLCEast Meadow, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ellen Sierra among 15,555 physician assistant records in New York
Ellen Sierra, P.A. is one of 15,555 physician assistant records with a practice address in New York. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 99% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2002 · median 2018 among the 8,158 with a school on file
- Record last updated2008 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
60 physician assistant records list a practice address in Oceanside
They are 60 of the 1,093 NPPES records with a practice address in Oceanside, and 15,555 physician assistant records in New York.
All 15,555 in New York → Every provider in Oceanside → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Vandette Carter, P.A.Oceanside, NY 115721568449569
- Courtney Ciesla, PAOceanside, NY 115721093805830
- Michele Farber, P.A.Oceanside, NY 115721982878492
- Brian Janicek, P.A.Oceanside, NY 115721407832413
- Mariam Karram-Fendoune, P.A.-COceanside, NY 115721568689255
- Gina Pontrelli, P.A.Oceanside, NY 115721417934753
- David Prince, P.A.Oceanside, NY 115721649483827
- Renee Reinertsen, PAOceanside, NY 115721770761702
Common questions
What is Ellen Sierra, P.A.'s NPI number?
Ellen Sierra, P.A.'s National Provider Identifier (NPI) is 1790761732, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Sierra, P.A. located?
The NPPES record lists a practice address at 1 Healthy Way, Oceanside, NY, 11572. Phone: (516) 632-3900. Providers update this record themselves, so call before visiting.
How can I verify Ellen Sierra, P.A.'s license?
NPPES lists New York license number 009114-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Ellen Sierra, P.A. prescribe under Medicare Part D?
In 2024, Ellen Sierra, P.A. had 569 Medicare Part D claims for 470 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Ellen Sierra, P.A.'s MIPS final score?
The 2023 MIPS final score is 76.5 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.