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GABRIELLA K SEYMOUR
NPI 1033994314
Nurse Practitioner - Psychiatric/Mental Health in Elmira, NY

Active since August 25, 2023PECOS EnrolledAccepts Medicare Assignment
600 ROE AVE, ELMIRA, NY 14905(607) 737-7012(607) 733-5594 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 11, 2025, Aug 25, 2023 (2 updates tracked since 2023).

About Gabriella K Seymour NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GABRIELLA K SEYMOUR (NPI 1033994314) is an individual psychiatric/mental health provider in Elmira, New York, licensed in New York (407307) and active in the NPI registry since August 2023. She is enrolled in Medicare PECOS, is affiliated with Arnot Ogden Medical Center, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1033994314
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameGABRIELLA K SEYMOUR
Location Address600 ROE AVEElmira, NY 14905-1676
Mailing Address600 Ivy St Ste 206Elmira, NY 14905-1627 · (607) 271-2050 · Fax (607) 271-2071
Phone(607) 737-7012
Fax(607) 733-5594
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateAugust 25, 2023
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 11, 2025
✔ NPI 1033994314 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in NY · 407307
Also ListedRegistered Nurse · EmergencyTaxonomy 163WE0003X · License 873946-01 (NY)
600 ROE AVE, Elmira, NY 14905
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gabriella K Seymour is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3678078219
PECOS Enrollment IDI20250925000181
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Gabriella Seymour reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Arnot Medical Services PLLC
Same address
Internal Medicine
600 ROE AVE
Elmira, NY 14905
  • Reassigned Medicare billing, New York enrollment
  • 122 clinicians in this Medicare group
NPI 1427326768 (607) 737-4500
Arnot Ogden Medical Center
Same address
General Acute Care Hospital
600 ROE AVE
Elmira, NY 14905
  • Reassigned Medicare billing, New York enrollment
  • 245 clinicians in this Medicare group
NPI 1083605661 (607) 737-4100

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Arnot Ogden Medical Center

Acute Care Hospitals · Elmira, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330090
Location600 Roe AvenueElmira, NY 14905 · Chemung County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14905 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROHAIL AIJAZ BAIG MD
Student in an Organized Health Care Education/Training Program
600 ROE AVE
ELMIRA, NY 14905
Chemung County (607) 442-1713
DR. MADIHA AKHTER
Student in an Organized Health Care Education/Training Program
600 ROE AVE
ELMIRA, NY 14905
Chemung County (607) 737-4100
DR. SANG S LEE MD
Student in an Organized Health Care Education/Training Program
600 ROE AVE
ELMIRA, NY 14905
Chemung County (607) 737-4100
JOHN H CHOTKOWSKI M.D.
Radiology (Diagnostic Radiology)
600 ROE AVE
ELMIRA, NY 14905
Chemung County (607) 734-3414
ROBERT NOVAK
General Practice
600 ROE AVE
ELMIRA, NY 14905
Chemung County (607) 737-4100
JESSICA DUAN DO
Student in an Organized Health Care Education/Training Program
600 ROE AVE
ELMIRA, NY 14905
Chemung County (607) 737-4100
STEPHEN MANGANARO M.D.
Emergency Medicine
600 ROE AVE
ELMIRA, NY 14905
Chemung County (607) 737-4508
MRS. PENNY PENLAND STOLLERY ANP-C
Nurse Practitioner (Adult Health)
600 ROE AVE
ELMIRA, NY 14905
Chemung County (607) 737-8165

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gabriella Seymour's NPI number?

The NPI number for Gabriella Seymour is 1033994314. It was assigned to this individual provider in the NPPES registry on August 25, 2023.

Where is Gabriella Seymour located?

Gabriella Seymour practices at 600 Roe Ave, Elmira, NY 14905. The listed phone number is (607) 737-7012.

What is Gabriella Seymour's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Gabriella Seymour enrolled in Medicare?

Yes. Gabriella Seymour is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Gabriella Seymour's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gabriella Seymour reassigns Medicare benefits to 2 organizations: Arnot Medical Services PLLC (Elmira, NY) and Arnot Ogden Medical Center (Elmira, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gabriella Seymour's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gabriella Seymour accept?

Health plans from Oscar Health list Gabriella Seymour as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gabriella Seymour affiliated with any hospitals?

According to CMS data, Gabriella Seymour is affiliated with Arnot Ogden Medical Center.

When was this NPI record last updated?

The NPPES record for Gabriella Seymour was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.