Matthew Lam
NPI 1932593563 · Cardiovascular Disease Physician · Mather, CA
Matthew Lam is a Cardiovascular Disease Physician provider in Mather, CA (NPI 1932593563).
Provider details
- NPI number
- 1932593563
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A144909 (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
11 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (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
- 2015-03-20
- Last updated
- 2026-04-14
- Certified
- 2026-04-14
Frequently asked questions
- What is Matthew Lam's NPI number?
- Matthew Lam's National Provider Identifier (NPI) is 1932593563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Lam's specialty?
- Matthew Lam is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Lam located?
- Matthew Lam's practice location on file with NPPES is 10535 Hospital Way, Mather, CA 95655-4200.
- What is Matthew Lam's phone number?
- The practice phone number listed in the NPPES registry for Matthew Lam is (916) 366-5325.
- Is Matthew Lam's NPI active?
- Yes — Matthew Lam's NPI (1932593563) is active in the NPPES registry as of the last update on 2026-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.