DR. LEAH CHRISTINE RIEFF DNP, CNM
NPI 1861013708
Midwife in Berkeley, CA
About Dr. Leah Christine Rieff Dnp, Cnm NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LEAH CHRISTINE RIEFF DNP, CNM (NPI 1861013708) is an individual midwife in Berkeley, California, licensed in California (236305) and active in the NPI registry since May 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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. Leah Christine Rieff Dnp, Cnm 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 Leah Rieff reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orinda, CA 94563
- Reassigned Medicare billing, California enrollment
- 4,479 clinicians in this Medicare group
American Canyon, CA 94503
- Reassigned Medicare billing, California enrollment
- 116 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.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BERKELEY, CA 94703
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 Leah Rieff's NPI number?
The NPI number for Leah Rieff is 1861013708. It was assigned to this individual provider in the NPPES registry on May 1, 2020.
Where is Leah Rieff located?
Leah Rieff practices at 3075 Adeline St Ste 270, Berkeley, CA 94703. The listed phone number is (510) 204-5600.
What is Leah Rieff's specialty?
The primary specialty registered for this NPI is Midwife with taxonomy code 176B00000X.
Is Leah Rieff enrolled in Medicare?
Yes. Leah Rieff 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 Leah Rieff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leah Rieff reassigns Medicare benefits to 2 organizations: Sutter Bay Medical Foundation (Orinda, CA) and Ole Health (American Canyon, CA). 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 Leah Rieff'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 Leah Rieff was last updated on March 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Leah Christine Rieff, DNP, CNM · NPI 1861013708
Midwife provider in Berkeley, California. Individual provider, active in the CMS NPPES registry since May 1, 2020.
## Identity
- **NPI:** 1861013708 (Entity type: Individual)
- **Enumerated:** May 1, 2020
- **Primary specialty:** Midwife · taxonomy 176B00000X
- **State license:** 236305 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3075 ADELINE ST STE 270, Berkeley, CA 94703-2580
- **Phone:** (510) 204-5600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Sutter Bay Medical Foundation (NPI 1366898538, Orinda, CA); Ole Health (NPI 1508573379, American Canyon, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** March 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1861013708) · Data from the CMS NPPES public registry.