Martha Seymour, NPP
NPI 1578646055 · Psychiatric/Mental Health Nurse Practitioner · Riverhead, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martha Seymour, NPP is a Psychiatric/Mental Health Nurse Practitioner provider in Riverhead, NY (NPI 1578646055).
Provider details
- NPI number
- 1578646055
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NPP
- Sex
- Female
- Sole proprietor
- No
- License
- F400622-1 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$125 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Martha Seymour's NPI number?
- Martha Seymour's National Provider Identifier (NPI) is 1578646055, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Seymour's specialty?
- Martha Seymour is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Martha Seymour located?
- Martha Seymour's practice location on file with NPPES is 300 Center Drive 2nd Floor Wing, Riverhead, NY 11901.
- What is Martha Seymour's phone number?
- The practice phone number listed in the NPPES registry for Martha Seymour is (631) 185-2144.
- Does Martha Seymour accept Medicare?
- Martha Seymour is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martha Seymour's NPI active?
- Yes — Martha Seymour's NPI (1578646055) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.