LAKE SAN MARCOS FAMILY MEDICINE
NPI 1124392683
Family Medicine in San Marcos, CA
About Lake San Marcos Family Medicine NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAKE SAN MARCOS FAMILY MEDICINE (NPI 1124392683) is a healthcare organization registered as a family medicine in San Marcos, California and active in the NPI registry since March 2012. The organization holds a CLIA Microscopy certificate valid through June 10, 2028 and lists Neil L Halim, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Lake San Marcos Family Medicine is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Lake San Marcos Family Medicine, 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.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate for Provider-Performed Microscopy Procedures (PPMP) 05D2042367
Lake San Marcos Family Medicine · San Marcos, CAFrequently 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 Neil L. Halim, MD Inc.'s NPI number?
The NPI number for Neil L. Halim, MD Inc. is 1124392683. It was assigned to this organization in the NPPES registry on March 1, 2012. The provider is doing business as Lake San Marcos Family Medicine.
Where is Neil L. Halim, MD Inc. located?
Neil L. Halim, MD Inc. is located at 1030 La Bonita Dr Suite 316, San Marcos, CA 92078. The listed phone number is (760) 744-9626.
What is Neil L. Halim, MD Inc.'s specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Neil L. Halim, MD Inc. enrolled in Medicare?
Yes. Neil L. Halim, MD Inc. is registered in the Medicare PECOS enrollment system.
When is Neil L. Halim, MD Inc.'s Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Neil L. Halim, MD Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Neil L. Halim, MD Inc.. 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.
Does Neil L. Halim, MD Inc. hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 05D2042367) is associated with this NPI, valid through June 10, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Neil L. Halim, MD Inc. was last updated on March 1, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Lake San Marcos Family Medicine · NPI 1124392683
Family Medicine organization in San Marcos, California. Organization record, active in the CMS NPPES registry since March 1, 2012.
## Identity
- **NPI:** 1124392683 (Entity type: Organization)
- **Enumerated:** March 1, 2012
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Legal business name:** Neil L. Halim, Md Inc.
- **Organization subpart:** No
- **Authorized official:** Neil Halim, OWNER
## Practice location
- **Address:** 1030 LA BONITA DR, SUITE 316, San Marcos, CA 92078-5291
- **Phone:** (760) 744-9626 · **Fax:** (760) 744-0751
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Family Practice) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 1, 2012
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1124392683) · Data from the CMS NPPES public registry.