Sean P. Thomas, NP
Psychiatric/Mental Health Nurse Practitioner · Riverhead, NY
Sean P. Thomas, NP is a psychiatric/mental health nurse practitioner with a practice address in Riverhead, New York, and NPI 1750635132, issued on Nov 6, 2012. Check the license (New York F401509-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sean P. Thomas
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- F401509-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 400 W Main St, Riverhead, NY 11901
- Phone
- (516) 225-0474
- Enumerated
- Nov 6, 2012
- Record last updated
- Sep 16, 2025
- Medicare enrollment
- Enrolled (PECOS I20140110000885); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 4,129 in New York → Look up another NPI →
Also registered at 400 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kevin CaramoreStudent in an Organized Health Care Education/Training Program1164209508
- Danille CornwellPeer Specialist1013672187
- Lisa Fox, LMSWClinical Social Worker1386348480
- Frank Guastella, LCSWClinical Social Worker1912445792
- Jonathan Harbord, LMSWSocial Worker1447866272
- Michaela HarrisPeer Specialist1275417727
Verify Sean P. Thomas 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 F401509-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
495 Medicare Part D claims for 20 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Mirtazapine46 claims
- Gabapentin37 claims
- Olanzapine28 claims
- Dextroamphetamine-Amphetamine26 claims
- Quetiapine Fumarate25 claims
- Lamotrigine22 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.
Bills Medicare through one group practice
- Family Service League IncHuntington, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean P. Thomas among 4,129 psychiatric/mental health nurse practitioner records in New York
Sean P. Thomas, NP is one of 4,129 psychiatric/mental health nurse practitioner records with a practice address in New York. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 24% of them.
- NPI issued2012 · 24% of these records are older, 73% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated2012 · median 2021 among the 1,914 with a school on file
- Record last updated2025 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 psychiatric/mental health nurse practitioner records list a practice address in Riverhead
They are 10 of the 982 NPPES records with a practice address in Riverhead, and 4,129 psychiatric/mental health nurse practitioner records in New York.
All 4,129 in New York → Every provider in Riverhead → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Nicole Byrne, RN, PMHNPRiverhead, NY 119011457921090
- Jane Frith, JANE FRITH,NPPRiverhead, NY 119011528139656
- Mary Kerch, NPP-BCRiverhead, NY 119011487053583
- Wendy McLaughlin, NPPRiverhead, NY 119011669512133
- Lynn Mitchell, NPRiverhead, NY 119011457337404
- Martha Seymour, NPPRiverhead, NY 119011578646055
- Peter Smith, NPRiverhead, NY 119011710360102
- Robert Southard, NPRiverhead, NY 119011972695377
Common questions
What is Sean P. Thomas, NP's NPI number?
Sean P. Thomas, NP's National Provider Identifier (NPI) is 1750635132, issued on Nov 6, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Sean P. Thomas, NP located?
The NPPES record lists a practice address at 400 W Main St, Riverhead, NY, 11901. Phone: (516) 225-0474. Providers update this record themselves, so call before visiting.
How can I verify Sean P. Thomas, NP's license?
NPPES lists New York license number F401509-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Sean P. Thomas, NP prescribe under Medicare Part D?
In 2024, Sean P. Thomas, NP had 495 Medicare Part D claims for 20 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
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.