SAMANTHA MICHELLE CHAN BUFFINGTON FNP
NPI 1629680087
Nurse Practitioner - Family in Yorba Linda, CA
About Samantha Michelle Chan Buffington Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SAMANTHA MICHELLE CHAN BUFFINGTON FNP (NPI 1629680087) is an individual family provider in Yorba Linda, California, licensed in California (95010633) and active in the NPI registry since August 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Samantha Michelle Chan Buffington Fnp 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
4Medicare enrollment records show Samantha Buffington reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Irvine, CA 92604
- Reassigned Medicare billing, California enrollment
- 212 clinicians in this Medicare group
Irvine, CA 92604
- Reassigned Medicare billing, California enrollment
- 71 clinicians in this Medicare group
Burbank, CA 91505
- Reassigned Medicare billing, California enrollment
- 236 clinicians in this Medicare group
El Cajon, CA 92020
- Reassigned Medicare billing, California enrollment
- 212 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 92886 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 16
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 Samantha Buffington's NPI number?
The NPI number for Samantha Buffington is 1629680087. It was assigned to this individual provider in the NPPES registry on August 18, 2020. The provider is also known as Samantha Michelle Chan.
Where is Samantha Buffington located?
Samantha Buffington practices at 18080 Imperial Hwy, Yorba Linda, CA 92886. The listed phone number is (714) 961-1054.
What is Samantha Buffington's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Samantha Buffington enrolled in Medicare?
Yes. Samantha Buffington 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 Samantha Buffington's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Samantha Buffington reassigns Medicare benefits to 4 organizations: Minuteclinic Diagnostic Medical Group Of Orange County Inc (Irvine, CA), Minuteclinic Primary Care California (Irvine, CA), Minuteclinic Diagnostic Medical Group Of California Inc (Burbank, CA) and Minuteclinic Diagnostic Medical Group Of San Diego Inc (El Cajon, 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 Samantha Buffington'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 Samantha Buffington was last updated on November 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Samantha Michelle Chan Buffington, FNP · NPI 1629680087
Family physician in Yorba Linda, California. Individual provider, active in the CMS NPPES registry since August 18, 2020.
## Identity
- **NPI:** 1629680087 (Entity type: Individual)
- **Enumerated:** August 18, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95010633 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 18080 IMPERIAL HWY, Yorba Linda, CA 92886-3436
- **Phone:** (714) 961-1054
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Minuteclinic Diagnostic Medical Group Of Orange County Inc (NPI 1104013879, Irvine, CA); Minuteclinic Primary Care California (NPI 1083421614, Irvine, CA); Minuteclinic Diagnostic Medical Group Of California Inc (NPI 1033309372, Burbank, CA); Minuteclinic Diagnostic Medical Group Of San Diego Inc (NPI 1568659233, El Cajon, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** November 24, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1629680087) · Data from the CMS NPPES public registry.