Marissa S. Sydial, PA-C
Physician Assistant · Merrick, NY
Marissa S. Sydial, PA-C is a physician assistant with a practice address in Merrick, New York, and NPI 1336638063, issued on May 8, 2018. Check the license (New York 022028, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marissa S. Sydial
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 022028 NY
Self-reported in NPPES; status is on the state search - Practice location
- 389 Merrick Ave, Merrick, NY 11566
- Phone
- (516) 867-5132
- Enumerated
- May 8, 2018
- Record last updated
- Mar 12, 2024
- Medicare enrollment
- Enrolled (PECOS I20180718001735); 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 389 Merrick Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marissa S. Sydial 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 022028Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average physician assistant in 2024
193 Medicare Part D claims for 135 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate14 claims
- Cephalexin11 claims
- Ondansetron Odt11 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
- North Shore Lij Urgent Care PCSpringfield Gardens, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marissa S. Sydial among 15,555 physician assistant records in New York
Marissa S. Sydial, PA-C 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 2018, is newer than 51% of them.
- NPI issued2018 · 51% of these records are older, 44% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2018 · median 2018 among the 8,158 with a school on file
- Record last updated2024 · 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).
26 physician assistant records list a practice address in Merrick
They are 26 of the 782 NPPES records with a practice address in Merrick, and 15,555 physician assistant records in New York.
All 15,555 in New York → Every provider in Merrick → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Filomena Abitino, RPA CMerrick, NY 115661922167121
- Ashley Bathke, PA-CMerrick, NY 115661972954212
- Jessica Boado, RPA-CMerrick, NY 115661932499464
- Daniel Ciavarella, PAMerrick, NY 115661831445188
- Erica Elkin, PAMerrick, NY 115661730394339
- Alexa Giovino, PAMerrick, NY 115661184284358
- Kimberly GomezMerrick, NY 115661548668841
- Jamie Klein, PA-CMerrick, NY 115661124584172
Common questions
What is Marissa S. Sydial, PA-C's NPI number?
Marissa S. Sydial, PA-C's National Provider Identifier (NPI) is 1336638063, issued on May 8, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Marissa S. Sydial, PA-C located?
The NPPES record lists a practice address at 389 Merrick Ave, Merrick, NY, 11566. Phone: (516) 867-5132. Providers update this record themselves, so call before visiting.
How can I verify Marissa S. Sydial, PA-C's license?
NPPES lists New York license number 022028, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Marissa S. Sydial, PA-C prescribe under Medicare Part D?
In 2024, Marissa S. Sydial, PA-C had 193 Medicare Part D claims for 135 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Marissa S. Sydial, PA-C'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.