ABIGAIL LOUISE MACKENZIE MD
NPI 1053165639
Internal Medicine in San Diego, CA
About Abigail Louise Mackenzie Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ABIGAIL LOUISE MACKENZIE MD (NPI 1053165639) is an individual internal medicine provider in San Diego, California, licensed in California (A209222) and active in the NPI registry since April 2024. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Abigail Louise Mackenzie 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 Mackenzie reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 1,100 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 92103 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 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
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 Mackenzie's NPI number?
The NPI number for Abigail Mackenzie is 1053165639. It was assigned to this individual provider in the NPPES registry on April 11, 2024.
Where is Abigail Mackenzie located?
Abigail Mackenzie practices at 4077 Fifth Ave # Mer-35, San Diego, CA 92103. The listed phone number is (000) 000-0000.
What is Abigail Mackenzie's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Abigail Mackenzie enrolled in Medicare?
Yes. Abigail Mackenzie 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 Mackenzie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Abigail Mackenzie reassigns Medicare benefits to Family Health Centers Of San Diego, Inc. (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 Mackenzie'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 Mackenzie was last updated on June 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Abigail Louise Mackenzie, MD · NPI 1053165639
Internal Medicine physician in San Diego, California. Individual provider, active in the CMS NPPES registry since April 11, 2024.
## Identity
- **NPI:** 1053165639 (Entity type: Individual)
- **Enumerated:** April 11, 2024
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A209222 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4077 FIFTH AVE # MER-35, San Diego, CA 92103-2105
- **Phone:** (000) 000-0000
## 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:** Family Health Centers Of San Diego, Inc. (NPI 1669827598, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 25, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1053165639) · Data from the CMS NPPES public registry.