Julie Lam, M.D.
NPI 1144494659 · Internal Medicine Physician · Sylmar, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julie Lam, M.D. is a Internal Medicine Physician provider in Sylmar, CA (NPI 1144494659).
Provider details
- NPI number
- 1144494659
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A109728 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 52 | 35 |
| Losartan Potassium | 42 | 21 |
| Metformin Hcl | 41 | 26 |
| Atorvastatin Calcium | 41 | 32 |
| Lisinopril | 25 | 19 |
| Levothyroxine Sodium | 22 | 12 |
| Fluticasone Propionate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$135 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-04-15
- Last updated
- 2015-02-17
Frequently asked questions
- What is Julie Lam's NPI number?
- Julie Lam's National Provider Identifier (NPI) is 1144494659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julie Lam's specialty?
- Julie Lam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Julie Lam located?
- Julie Lam's practice location on file with NPPES is 14445 Olive View Dr, Sylmar, CA 91342-1437.
- What is Julie Lam's phone number?
- The practice phone number listed in the NPPES registry for Julie Lam is (818) 364-3205.
- Does Julie Lam accept Medicare?
- Julie Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julie Lam's NPI active?
- Yes — Julie Lam's NPI (1144494659) is active in the NPPES registry as of the last update on 2015-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.