JULIE LAM M.D.
NPI 1144494659
Internal Medicine in Sylmar, CA
About Julie Lam M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JULIE LAM M.D. (NPI 1144494659) is an individual internal medicine provider in Sylmar, California, licensed in California (A109728) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Julie Lam M.d. 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
3Medicare enrollment records show Julie Lam reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sylmar, CA 91342
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: County Of Los Angeles
- 1,939 clinicians in this Medicare group
Montebello, CA 90640
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: R. Ruiz MD A Professional Corporation
- 4 clinicians in this Medicare group
New York, NY 10012
- Reassigned Medicare billing, Georgia enrollment
- 52 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 91342 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.
SYLMAR, CA 91342
SYLMAR, CA 91342
SYLMAR, CA 91342
SYLMAR, CA 91342
SYLMAR, CA 91342
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 Julie Lam's NPI number?
The NPI number for Julie Lam is 1144494659. It was assigned to this individual provider in the NPPES registry on April 15, 2008.
Where is Julie Lam located?
Julie Lam practices at 14445 Olive View Dr Department Of Medicine #2b182, Sylmar, CA 91342. The listed phone number is (818) 364-3205.
What is Julie Lam's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Julie Lam enrolled in Medicare?
Yes. Julie Lam 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 Julie Lam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Julie Lam reassigns Medicare benefits to 3 organizations: County Of Los Angeles Auditor Controller (Sylmar, CA), R Ruiz M D A Professional Corporation (Montebello, CA) and Galileo Medical Group Ga, P.C. (New York, NY). 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 Julie Lam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Julie Lam accept?
Health plans from Blue Cross and Blue Shield of NC list Julie Lam as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Julie Lam was last updated on February 17, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Julie Lam, M.D. · NPI 1144494659
Internal Medicine physician in Sylmar, California. Individual provider, active in the CMS NPPES registry since April 15, 2008.
## Identity
- **NPI:** 1144494659 (Entity type: Individual)
- **Enumerated:** April 15, 2008
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A109728 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 14445 OLIVE VIEW DR, DEPARTMENT OF MEDICINE #2B182, Sylmar, CA 91342-1437
- **Phone:** (818) 364-3205
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): County Of Los Angeles Auditor Controller (NPI 1134159320, Sylmar, CA); R Ruiz M D A Professional Corporation (NPI 1245261023, Montebello, CA); Galileo Medical Group Ga, P.C. (NPI 1245920305, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** February 17, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1144494659) · Data from the CMS NPPES public registry.