Olivia Renee Demarco
Physician Assistant · Riverhead, NY
Olivia Renee Demarco is a physician assistant with a practice address in Riverhead, New York, and NPI 1962019760, issued on Sep 25, 2020. Check the license (New York 025666, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olivia Renee Demarco
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 025666 NY
Self-reported in NPPES; status is on the state search - Practice location
- 64 Commerce Ave, Riverhead, NY 11901
- Phone
- (631) 369-5000
- Enumerated
- Sep 25, 2020
- Record last updated
- Nov 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210107000528); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 64 Commerce Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Ciminiello, MDOrthopaedic Surgery Physician1528272648
- Louis Romeo, M.DAdult Reconstructive Orthopaedic Surgery Physician1922049089
- Danielle Sugar, PA-CMedical Physician Assistant1538883012
Verify Olivia Renee Demarco 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 025666Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average physician assistant in 2024
750 Medicare Part D claims for 477 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims. 268 claims were for opioids.
Most prescribed
- Oxycodone Hcl191 claims
- Diclofenac Sodium137 claims
- Meloxicam100 claims
- Amoxicillin71 claims
- Tramadol Hcl64 claims
- Methylprednisolone56 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).
Bills Medicare through one group practice
- Peconic Bay Primary Medical CareRiverhead, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
51 physician assistant records list a practice address in Riverhead
They are 51 of the 982 NPPES records with a practice address in Riverhead, and 15,555 physician assistant records in New York.
All 51 in Riverhead → All 15,555 in New York → Every provider in Riverhead →
Other physician assistant records in New York
- Brynn Aakjar, P.A.Yonkers, NY1447592456
- Andrea Aaron, PABronx, NY1427103555
- Gabriella AaronCentral Islip, NY1790605376
- Danielle AaronsSmithtown, NY1881207520
- John AbadeerBrooklyn, NY1801434949
- Zenebou Abalo-Toga, PANew York, NY1124556154
- Kevin Alfred Abalos, PA-CCambria Heights, NY1700286424
- Clarisse AbanillaNew York, NY1598445579
- Vincent Abanilla, PA-CBrooklyn, NY1366201808
- Marie Abate, PA-CValhalla, NY1285225524
Common questions
What is Olivia Renee Demarco's NPI number?
Olivia Renee Demarco's National Provider Identifier (NPI) is 1962019760, issued on Sep 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Renee Demarco located?
The NPPES record lists a practice address at 64 Commerce Ave, Riverhead, NY, 11901. Phone: (631) 369-5000. Providers update this record themselves, so call before visiting.
How can I verify Olivia Renee Demarco's license?
NPPES lists New York license number 025666, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Olivia Renee Demarco prescribe under Medicare Part D?
In 2024, Olivia Renee Demarco had 750 Medicare Part D claims for 477 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Olivia Renee Demarco'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.