ABIGAIL BUHAIN MD
NPI 1043252489
Family Medicine in San Diego, CA
About Abigail Buhain Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ABIGAIL BUHAIN MD (NPI 1043252489) is an individual family medicine provider in San Diego, California, licensed in California (A91792) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2002).
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
Abigail Buhain Md 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 Abigail Buhain reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 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 92120 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.
SAN DIEGO, CA 92120
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 Abigail Buhain's NPI number?
The NPI number for Abigail Buhain is 1043252489. It was assigned to this individual provider in the NPPES registry on June 11, 2006.
Where is Abigail Buhain located?
Abigail Buhain practices at 4405 Vandever Ave, San Diego, CA 92120. The listed phone number is (800) 290-5000.
What is Abigail Buhain's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Abigail Buhain enrolled in Medicare?
Yes. Abigail Buhain 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 Abigail Buhain's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Abigail Buhain reassigns Medicare benefits to Southern California Permanente Medical Group (San Diego, 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 Abigail Buhain'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 Abigail Buhain was last updated on December 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Abigail Buhain, MD · NPI 1043252489
Family Medicine physician in San Diego, California. Individual provider, active in the CMS NPPES registry since June 11, 2006.
## Identity
- **NPI:** 1043252489 (Entity type: Individual)
- **Enumerated:** June 11, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A91792 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4405 VANDEVER AVE, San Diego, CA 92120-3315
- **Phone:** (800) 290-5000
## 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:** Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2002
## Record status
- **NPPES last updated:** December 2, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1043252489) · Data from the CMS NPPES public registry.