MRS. JUSTINE ELISE DELLA FAVE MSN, CNM, WHNP-BC
NPI 1487108957
Nurse Practitioner - Women's Health in San Mateo, CA
About Mrs. Justine Elise Della Fave Msn, Cnm, Whnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. JUSTINE ELISE DELLA FAVE MSN, CNM, WHNP-BC (NPI 1487108957) is an individual women's health provider in San Mateo, California, licensed in California (95006045) and active in the NPI registry since August 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
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
Mrs. Justine Elise Della Fave Msn, Cnm, Whnp-bc 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 Justine Della Fave reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Mateo, CA 94403
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1114005105 (California)
- 430 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 94403 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.
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 Justine Della Fave's NPI number?
The NPI number for Justine Della Fave is 1487108957. It was assigned to this individual provider in the NPPES registry on August 12, 2016.
Where is Justine Della Fave located?
Justine Della Fave practices at 222 W 39th Ave, San Mateo, CA 94403. The listed phone number is (973) 655-4361.
What is Justine Della Fave's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Women's Health, with taxonomy code 363LW0102X.
Is Justine Della Fave enrolled in Medicare?
Yes. Justine Della Fave 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 Justine Della Fave's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justine Della Fave reassigns Medicare benefits to County Of San Mateo (San Mateo, 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 Justine Della Fave'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 Justine Della Fave was last updated on February 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mrs. Justine Elise Della Fave, MSN, CNM, WHNP-BC · NPI 1487108957
Women's Health physician in San Mateo, California. Individual provider, active in the CMS NPPES registry since August 12, 2016.
## Identity
- **NPI:** 1487108957 (Entity type: Individual)
- **Enumerated:** August 12, 2016
- **Primary specialty:** Nurse Practitioner - Women's Health · taxonomy 363LW0102X
- **State license:** 95006045 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 222 W 39TH AVE, San Mateo, CA 94403-4364
- **Phone:** (973) 655-4361
## 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:** County Of San Mateo (NPI 1831268580, San Mateo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** February 1, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1487108957) · Data from the CMS NPPES public registry.