CARLOS MACIAS MD
NPI 1104965193
Internal Medicine - Clinical Cardiac Electrophysiology in Los Angeles, CA
About Carlos Macias Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CARLOS MACIAS MD (NPI 1104965193) is an individual clinical cardiac electrophysiology provider in Los Angeles, California, licensed in California (A119680) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 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
Carlos Macias 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 Reassignments
2Medicare enrollment records show Carlos Macias reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 1,766 clinicians in this Medicare group
Santa Monica, CA 90405
- Reassigned Medicare billing, California enrollment
- 1,939 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 34
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.
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.
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 Carlos Macias's NPI number?
The NPI number for Carlos Macias is 1104965193. It was assigned to this individual provider in the NPPES registry on February 6, 2007.
Where is Carlos Macias located?
Carlos Macias practices at 100 Medical Plaza Suite 660 Ucla Cardiac Arrhythmia Center, Los Angeles, CA 90092. The listed phone number is (310) 206-6433.
What is Carlos Macias's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.
Is Carlos Macias enrolled in Medicare?
Yes. Carlos Macias 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 Carlos Macias's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Macias reassigns Medicare benefits to 2 organizations: The Regents Of The University Of California (Los Angeles, CA) and County Of Los Angeles (Santa Monica, 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 Carlos Macias'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 Carlos Macias was last updated on May 2, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Carlos Macias, MD · NPI 1104965193
Clinical Cardiac Electrophysiology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since February 6, 2007.
## Identity
- **NPI:** 1104965193 (Entity type: Individual)
- **Enumerated:** February 6, 2007
- **Primary specialty:** Internal Medicine - Clinical Cardiac Electrophysiology · taxonomy 207RC0001X
- **State license:** A119680 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 MEDICAL PLAZA SUITE 660, UCLA CARDIAC ARRHYTHMIA CENTER, Los Angeles, CA 90092-7392
- **Phone:** (310) 206-6433
## 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): The Regents Of The University Of California (NPI 1235107566, Los Angeles, CA); County Of Los Angeles (NPI 1235323080, Santa Monica, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** May 2, 2017
- **Other identifiers:** Medicare PIN HM274Z (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1104965193) · Data from the CMS NPPES public registry.