Aidas Mattis, M.D., PHD
NPI 1558817817 · Anatomic Pathology & Clinical Pathology Physician · La Canada Flintridge, CA
Enrolled with Medicare as Order and Referring Only - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aidas Mattis, M.D., PHD is a Anatomic Pathology & Clinical Pathology Physician provider in La Canada Flintridge, CA (NPI 1558817817).
Provider details
- NPI number
- 1558817817
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PHD
- Sex
- Male
- Sole proprietor
- No
- License
- A167909 (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
9 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.
$46 across 2 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
- 2016-08-28
- Last updated
- 2022-04-22
- Certified
- 2022-04-22
Frequently asked questions
- What is Aidas Mattis's NPI number?
- Aidas Mattis's National Provider Identifier (NPI) is 1558817817, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aidas Mattis's specialty?
- Aidas Mattis is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Aidas Mattis located?
- Aidas Mattis's practice location on file with NPPES is 1132 Lavender Ln, La Canada Flintridge, CA 91011-2339.
- What is Aidas Mattis's phone number?
- The practice phone number listed in the NPPES registry for Aidas Mattis is (818) 209-4430.
- Does Aidas Mattis accept Medicare?
- Aidas Mattis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aidas Mattis's NPI active?
- Yes — Aidas Mattis's NPI (1558817817) is active in the NPPES registry as of the last update on 2022-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.