MARTA LONG MD
NPI 1205401387
Clinic/Center - Primary Care in Irvine, CA
About Marta Long Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARTA LONG MD (NPI 1205401387) is a healthcare organization registered as a primary care in Irvine, California and active in the NPI registry since May 2021. The organization lists Marta Elizabeth Long, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marta Long Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Marta Long MD, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Marta Long MD's NPI number?
The NPI number for Marta Long MD is 1205401387. It was assigned to this organization in the NPPES registry on May 21, 2021.
Where is Marta Long MD located?
Marta Long MD is located at 19712 Macarthur Blvd Ste 110, Irvine, CA 92612. The listed phone number is (949) 237-2949.
What is Marta Long MD's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Marta Long MD enrolled in Medicare?
Yes. Marta Long MD is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Marta Long MD?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Marta Long MD. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Marta Long MD was last updated on July 12, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Marta Long Md · NPI 1205401387
Primary Care organization in Irvine, California. Organization record, active in the CMS NPPES registry since May 21, 2021.
## Identity
- **NPI:** 1205401387 (Entity type: Organization)
- **Enumerated:** May 21, 2021
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Organization subpart:** No
- **Authorized official:** Marta Long, PRESIDENT
## Practice location
- **Address:** 19712 MACARTHUR BLVD STE 110, Irvine, CA 92612-2407
- **Phone:** (949) 237-2949 · **Fax:** (682) 219-0893
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 12, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1205401387) · Data from the CMS NPPES public registry.