MARIE-CLAIRE LEAF
NPI 1144727090
Obstetrics & Gynecology in Orange, CA
About Marie-claire Leaf NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIE-CLAIRE LEAF (NPI 1144727090) is an individual obstetrics & gynecology provider in Orange, California, licensed in Maryland (D93475) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
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
Marie-claire Leaf 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 Marie-claire Leaf reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Newport Beach, CA 92663
- Reassigned Medicare billing, California enrollment
- 529 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 92868 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Marie-claire Leaf's NPI number?
The NPI number for Marie-claire Leaf is 1144727090. It was assigned to this individual provider in the NPPES registry on April 8, 2018.
Where is Marie-claire Leaf located?
Marie-claire Leaf practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8224.
What is Marie-claire Leaf's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Marie-claire Leaf enrolled in Medicare?
Yes. Marie-claire Leaf 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 Marie-claire Leaf's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marie-claire Leaf reassigns Medicare benefits to Hoag Clinic (Newport Beach, CA). 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 Marie-claire Leaf's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Marie-claire Leaf was last updated on June 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Marie-Claire Leaf · NPI 1144727090
Obstetrics & Gynecology physician in Orange, California. Individual provider, active in the CMS NPPES registry since April 8, 2018.
## Identity
- **NPI:** 1144727090 (Entity type: Individual)
- **Enumerated:** April 8, 2018
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** D93475 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868
- **Phone:** (714) 456-8224
## 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:** Hoag Clinic (NPI 1942799523, Newport Beach, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** June 23, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1144727090) · Data from the CMS NPPES public registry.