William P. Seymour, NP
Psychiatric/Mental Health Nurse Practitioner · Westbrook, ME
William P. Seymour, NP is a psychiatric/mental health nurse practitioner with a practice address in Westbrook, Maine, and NPI 1790415594, issued on Jun 14, 2022. Check the license (Maine CNP221293, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William P. Seymour
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- CNP221293 ME
Self-reported in NPPES; status is on the state search - Practice location
- 123 Andover RD, Westbrook, ME 04092
- Phone
- (207) 761-2200
- Enumerated
- Jun 14, 2022
- Record last updated
- Jul 26, 2023
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 472 in Maine → Look up another NPI →
Also registered at 123 Andover RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anita Ancic, PA-CPhysician Assistant1538470364
- Nancy AshbaughClinical Social Worker1053956854
- Kelli Baldrick, M.D.Psychiatry Physician1609092105
- Ellen Bell, OTOccupational Therapist1154868800
- Rachel Bossi, MSOT, OTR/LMental Health Occupational Therapist1609545250
- Melissa Bowker-Kinley, MDChild & Adolescent Psychiatry Physician1306811799
Verify William P. Seymour in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license CNP221293Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 98.1 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).
Industry payments in 2024: $30.00
1 payment: food and beverage; the largest payer was Supernus Pharmaceuticals, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 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.
William P. Seymour among 472 psychiatric/mental health nurse practitioner records in Maine
William P. Seymour, NP is one of 472 psychiatric/mental health nurse practitioner records with a practice address in Maine. 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 2022, is newer than 69% of them.
- NPI issued2022 · 69% of these records are older, 25% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2023 · 40% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 psychiatric/mental health nurse practitioner records list a practice address in Westbrook
They are 8 of the 559 NPPES records with a practice address in Westbrook, and 472 psychiatric/mental health nurse practitioner records in Maine.
All 472 in Maine → Every provider in Westbrook → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Ian Brown, NPWestbrook, ME 040921770872582
- Mackenzie Dufresne, PMHNPWestbrook, ME 040921700726247
- Benjamin Elliott, PMHNPWestbrook, ME 040921942036074
- Kiely Foley, PMHNP-BC, LCSWWestbrook, ME 040921053641399
- Lisa Hubert-Fox, PMHNPWestbrook, ME 040921215811328
- Gertrude Omeh, PMHNP-BCWestbrook, ME 040921033054432
- Sara Tsaitsios, PMHNPWestbrook, ME 040921811560477
- Sandhya ShanleyWells, ME 040901871250241
Common questions
What is William P. Seymour, NP's NPI number?
William P. Seymour, NP's National Provider Identifier (NPI) is 1790415594, issued on Jun 14, 2022. An NPI identifies a provider in billing; it is not a license.
Where is William P. Seymour, NP located?
The NPPES record lists a practice address at 123 Andover RD, Westbrook, ME, 04092. Phone: (207) 761-2200. Providers update this record themselves, so call before visiting.
How can I verify William P. Seymour, NP's license?
NPPES lists Maine license number CNP221293, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
What is William P. Seymour, NP's MIPS final score?
The 2023 MIPS final score is 98.1 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.