HANNAH KRIZZIA RIVERA FNP-C
NPI 1720627185
Nurse Practitioner - Family in Danville, CA
About Hannah Krizzia Rivera Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HANNAH KRIZZIA RIVERA FNP-C (NPI 1720627185) is an individual family provider in Danville, California, licensed in California (95012417) and active in the NPI registry since January 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).
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
Hannah Krizzia Rivera Fnp-c 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 Hannah Krizzia Rivera reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 137 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 2 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94526 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 3
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 Hannah Krizzia Rivera's NPI number?
The NPI number for Hannah Krizzia Rivera is 1720627185. It was assigned to this individual provider in the NPPES registry on January 3, 2020.
Where is Hannah Krizzia Rivera located?
Hannah Krizzia Rivera practices at 919 San Ramon Valley Blvd Ste 255, Danville, CA 94526. The listed phone number is (925) 718-8759.
What is Hannah Krizzia Rivera's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Hannah Krizzia Rivera enrolled in Medicare?
Yes. Hannah Krizzia Rivera 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 Hannah Krizzia Rivera's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hannah Krizzia Rivera reassigns Medicare benefits to 2 organizations: Integrated Pain Management Medical Group, Inc. (Walnut Creek, CA) and California Spine Center A Professional Medical Corporation (Walnut Creek, 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 Hannah Krizzia Rivera'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 Hannah Krizzia Rivera was last updated on December 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Hannah Krizzia Rivera, FNP-C · NPI 1720627185
Family physician in Danville, California. Individual provider, active in the CMS NPPES registry since January 3, 2020.
## Identity
- **NPI:** 1720627185 (Entity type: Individual)
- **Enumerated:** January 3, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95012417 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 919 SAN RAMON VALLEY BLVD STE 255, Danville, CA 94526-4051
- **Phone:** (925) 718-8759
## 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): Integrated Pain Management Medical Group, Inc. (NPI 1922198779, Walnut Creek, CA); California Spine Center A Professional Medical Corporation (NPI 1114149341, Walnut Creek, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** December 13, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1720627185) · Data from the CMS NPPES public registry.