KALYNN YASTRO F.N.P.
NPI 1043766678
Nurse Practitioner - Family in Oakley, CA
About Kalynn Yastro F.n.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KALYNN YASTRO F.N.P. (NPI 1043766678) is an individual family provider in Oakley, California, licensed in California (95004910) and active in the NPI registry since September 2016. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2016).
NPPES Registry Identity
Specialties & Licenses 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
Kalynn Yastro F.n.p. 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 Kalynn Yastro reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
East Palo Alto, CA 94303
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: County Of San Mateo
- Also billed through NPI 1831268580 (California)
- 597 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 94561 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 13
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 Kalynn Yastro's NPI number?
The NPI number for Kalynn Yastro is 1043766678. It was assigned to this individual provider in the NPPES registry on September 1, 2016.
Where is Kalynn Yastro located?
Kalynn Yastro practices at 2021 Main St, Oakley, CA 94561. The listed phone number is (925) 776-8200.
What is Kalynn Yastro's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Kalynn Yastro enrolled in Medicare?
Yes. Kalynn Yastro 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 Kalynn Yastro's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kalynn Yastro reassigns Medicare benefits to San Mateo County (East Palo Alto, 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 Kalynn Yastro'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 Kalynn Yastro was last updated on September 1, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Kalynn Yastro, F.N.P. · NPI 1043766678
Family physician in Oakley, California. Individual provider, active in the CMS NPPES registry since September 1, 2016.
## Identity
- **NPI:** 1043766678 (Entity type: Individual)
- **Enumerated:** September 1, 2016
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95004910 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2021 MAIN ST, Oakley, CA 94561-3302
- **Phone:** (925) 776-8200
## 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:** San Mateo County (NPI 1710086301, East Palo Alto, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** September 1, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1043766678) · Data from the CMS NPPES public registry.