Stephanie A. Mercer, PA-C
Medical Physician Assistant · Huntington Station, NY
Stephanie A. Mercer, PA-C is a medical physician assistant with a practice address in Huntington Station, New York, and NPI 1457668410, issued on Sep 10, 2010. Check the license (New York 015509, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephanie A. Mercer
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 015509 NY
Self-reported in NPPES; status is on the state search - Practice location
- 19 W Jericho Tpke, Huntington Station, NY 11746
- Phone
- (631) 604-4023
- Enumerated
- Sep 10, 2010
- Record last updated
- Mar 7, 2023
- Fax
- (631) 604-4027
- Medicaid IDs
- 557306 AZ
04649450 NY - Medicare enrollment
- Enrolled (PECOS I20160408000029); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,670 in New York → Look up another NPI →
Also registered at 19 W Jericho Tpke
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sneha ChittabathiniFamily Medicine Physician1912587833
Verify Stephanie A. Mercer 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 015509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average medical physician assistant in 2024
247 Medicare Part D claims for 210 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate35 claims
- Amoxicillin-Clavulanate Potass34 claims
- Cephalexin25 claims
- Paxlovid15 claims
- Doxycycline Hyclate11 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 PCEast Northport, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephanie A. Mercer among 3,670 medical physician assistant records in New York
Stephanie A. Mercer, PA-C is one of 3,670 medical physician assistant records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 39% of them.
- NPI issued2010 · 39% of these records are older, 57% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2010 · median 2014 among the 1,802 with a school on file
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in New York
There are 3,670 medical physician assistant records in New York.
All 3,670 in New York → Every provider in Huntington Station → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Jean Abreu, PAHuntington Station, NY 117461821844580
- Ahad Muzamil, PADix Hills, NY 117461851815831
- Cathia Saint Jean, P.A.Melville, NY 117471043528805
- Erica Singer, RPA-CMelville, NY 117471740557453
- Usman Ali, RPACHuntington, NY 117431679546204
- Jessica Donofrio, PA-CIslandia, NY 117491326443029
- Christopher Finnegan, PAHuntington, NY 117431275597213
- Edward Giarrusso, PAHuntington, NY 117431942510656
Common questions
What is Stephanie A. Mercer, PA-C's NPI number?
Stephanie A. Mercer, PA-C's National Provider Identifier (NPI) is 1457668410, issued on Sep 10, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie A. Mercer, PA-C located?
The NPPES record lists a practice address at 19 W Jericho Tpke, Huntington Station, NY, 11746. Phone: (631) 604-4023. Providers update this record themselves, so call before visiting.
How can I verify Stephanie A. Mercer, PA-C's license?
NPPES lists New York license number 015509, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Stephanie A. Mercer, PA-C prescribe under Medicare Part D?
In 2024, Stephanie A. Mercer, PA-C had 247 Medicare Part D claims for 210 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Stephanie A. Mercer, 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.