MARIA LEON
NPI 1699633867
Nurse Practitioner - Women's Health in New Haven, CT
About Maria Leon NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIA LEON (NPI 1699633867) is an individual women's health provider in New Haven, Connecticut, licensed in Connecticut (191981) and active in the NPI registry since January 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses
Accepted 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
Maria Leon 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 Reassignment
Medicare enrollment records show Maria Leon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 468 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06519 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.
NEW HAVEN, CT 06519
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 Maria Leon's NPI number?
The NPI number for Maria Leon is 1699633867. It was assigned to this individual provider in the NPPES registry on January 14, 2026.
Where is Maria Leon located?
Maria Leon practices at 400 Columbus Ave, New Haven, CT 06519. The listed phone number is (203) 503-3000.
What is Maria Leon's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Women's Health, with taxonomy code 363LW0102X.
Is Maria Leon enrolled in Medicare?
Yes. Maria Leon 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 organization bills Medicare for Maria Leon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Leon reassigns Medicare benefits to Cornell Scott Hill Health Corporation (New Haven, CT). The 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 Maria Leon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maria Leon accept?
Health plans from Anthem Blue Cross and Blue Shield list Maria Leon 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.
When was this NPI record last updated?
The NPPES record for Maria Leon was last updated on January 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Maria Leon · NPI 1699633867
Women's Health physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since January 14, 2026.
## Identity
- **NPI:** 1699633867 (Entity type: Individual)
- **Enumerated:** January 14, 2026
- **Primary specialty:** Nurse Practitioner - Women's Health · taxonomy 363LW0102X
- **State license:** 191981 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 COLUMBUS AVE, New Haven, CT 06519-1233
- **Phone:** (203) 503-3000
## 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:** Cornell Scott Hill Health Corporation (NPI 1902921380, New Haven, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** January 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1699633867) · Data from the CMS NPPES public registry.