Mariah Leigh Messina, PA-C
Medical Physician Assistant · Riverhead, NY
Mariah Leigh Messina, PA-C is a medical physician assistant with a practice address in Riverhead, New York, and NPI 1285272740, issued on Dec 16, 2019. Check the license (New York 024517, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mariah Leigh Messina
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 024517 NY
Self-reported in NPPES; status is on the state search - Practice location
- 31 Main RD Ste 2, Riverhead, NY 11901
- Phone
- (631) 740-9273
- Enumerated
- Dec 16, 2019
- Record last updated
- Dec 16, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200206002355); 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 31 Main RD Ste 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Huang, M.D.Infectious Disease Physician1437346129
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- Sara Zahedpour AnarakiEndocrinology, Diabetes & Metabolism Physician1881198307
Verify Mariah Leigh Messina 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 024517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average medical physician assistant in 2024
491 Medicare Part D claims for 195 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Ketoconazole58 claims
- Clobetasol Propionate40 claims
- Dupixent Syringe37 claims
- Cephalexin32 claims
- Triamcinolone Acetonide28 claims
- Doxycycline Hyclate24 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): 95 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).
Industry payments in 2024: $667.69
25 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,165 providers of this specialty with any payment received $1,055.00 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 2 group practices
- Midtown Dermatology Services PCNew York, NY
- Suffolk Dermatology PCRiverhead, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mariah Leigh Messina among 3,670 medical physician assistant records in New York
Mariah Leigh Messina, 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 2019, is newer than 75% of them.
- NPI issued2019 · 75% of these records are older, 20% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2019 · median 2014 among the 1,802 with a school on file
- Record last updated2019 · 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).
12 medical physician assistant records list a practice address in Riverhead
They are 12 of the 982 NPPES records with a practice address in Riverhead, and 3,670 medical physician assistant records in New York.
All 3,670 in New York → Every provider in Riverhead → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Nicole Auclair-Masone, RPACRiverhead, NY 119011033182498
- Summer Fox, PHYSICIAN ASSISTANTRiverhead, NY 119011477302586
- Christopher Hart, RPACRiverhead, NY 119011639166846
- Benjamin PennRiverhead, NY 119011417527649
- Christopher Ragona, RPA-C, MPARiverhead, NY 119011235404880
- Douglas Riggs, RPACRiverhead, NY 119011215001011
- Kerri Roesch, RPACRiverhead, NY 119011285934562
- Kim Scarpati, PARiverhead, NY 119011821363458
Common questions
What is Mariah Leigh Messina, PA-C's NPI number?
Mariah Leigh Messina, PA-C's National Provider Identifier (NPI) is 1285272740, issued on Dec 16, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mariah Leigh Messina, PA-C located?
The NPPES record lists a practice address at 31 Main RD Ste 2, Riverhead, NY, 11901. Phone: (631) 740-9273. Providers update this record themselves, so call before visiting.
How can I verify Mariah Leigh Messina, PA-C's license?
NPPES lists New York license number 024517, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Mariah Leigh Messina, PA-C prescribe under Medicare Part D?
In 2024, Mariah Leigh Messina, PA-C had 491 Medicare Part D claims for 195 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Mariah Leigh Messina, PA-C's MIPS final score?
The 2023 MIPS final score is 95 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.