DR. GUIRLAINE LENORE AGNANT MD
NPI 1811956162
Obstetrics & Gynecology in Mount Vernon, NY
About Dr. Guirlaine Lenore Agnant Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GUIRLAINE LENORE AGNANT MD (NPI 1811956162) is an individual obstetrics & gynecology provider in Mount Vernon, New York, licensed in New York (155970) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS, is affiliated with Montefiore Mount Vernon Hospital, and is a graduate of Other (1981).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Dr. Guirlaine Lenore Agnant Md 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.
Medicare Billing Reassignments
2Medicare enrollment records show Guirlaine Agnant reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mount Vernon, NY 10550
- Reassigned Medicare billing, New York enrollment
- 140 clinicians in this Medicare group
Yonkers, NY 10701
- Reassigned Medicare billing, New York enrollment
- 211 clinicians in this Medicare group
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.
Montefiore Mount Vernon Hospital
Acute Care Hospitals · Mount Vernon, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
MOUNT VERNON, NY 10550
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 Guirlaine Agnant's NPI number?
The NPI number for Guirlaine Agnant is 1811956162. It was assigned to this individual provider in the NPPES registry on March 23, 2006.
Where is Guirlaine Agnant located?
Guirlaine Agnant practices at 12 N 7th Ave, Mount Vernon, NY 10550. The listed phone number is (914) 664-8000.
What is Guirlaine Agnant's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Guirlaine Agnant enrolled in Medicare?
Yes. Guirlaine Agnant 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 Guirlaine Agnant's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Guirlaine Agnant reassigns Medicare benefits to 2 organizations: Montefiore Mount Vernon Hospital (Mount Vernon, NY) and Montefiore New Rochelle Hospital (Yonkers, 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 Guirlaine Agnant's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Guirlaine Agnant affiliated with any hospitals?
According to CMS data, Guirlaine Agnant is affiliated with Montefiore Mount Vernon Hospital.
When was this NPI record last updated?
The NPPES record for Guirlaine Agnant was last updated on October 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.
# Dr. Guirlaine Lenore Agnant, MD · NPI 1811956162
Obstetrics & Gynecology physician in Mount Vernon, New York. Individual provider, active in the CMS NPPES registry since March 23, 2006.
## Identity
- **NPI:** 1811956162 (Entity type: Individual)
- **Enumerated:** March 23, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 155970 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 12 N 7TH AVE, Mount Vernon, NY 10550-2026
- **Phone:** (914) 664-8000 · **Fax:** (914) 664-8015
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Montefiore Mount Vernon Hospital (NPI 1013345065, Mount Vernon, NY); Montefiore New Rochelle Hospital (NPI 1295163244, Yonkers, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1981
## Record status
- **NPPES last updated:** October 9, 2007
- **Other identifiers:** Medicaid 00953200 (NY); Medicare PIN 07E052 (NY); Medicare UPIN A60283
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Source: [NPI Profile](https://npiprofile.com/npi/1811956162) · Data from the CMS NPPES public registry.