Matthew Onassis
NPI 1225807795 · Dermatology Physician · Beverly Hills, CA
Matthew Onassis is a Dermatology Physician provider in Beverly Hills, CA (NPI 1225807795).
Provider details
- NPI number
- 1225807795
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 95027677 (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
2 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.
$344 across 6 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
- 2023-12-26
- Last updated
- 2023-12-26
- Certified
- 2023-12-26
Frequently asked questions
- What is Matthew Onassis's NPI number?
- Matthew Onassis's National Provider Identifier (NPI) is 1225807795, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Onassis's specialty?
- Matthew Onassis is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Onassis located?
- Matthew Onassis's practice location on file with NPPES is 462 N Linden Dr Ste 447, Beverly Hills, CA 90212-4902.
- What is Matthew Onassis's phone number?
- The practice phone number listed in the NPPES registry for Matthew Onassis is (310) 800-4988.
- Is Matthew Onassis's NPI active?
- Yes — Matthew Onassis's NPI (1225807795) is active in the NPPES registry as of the last update on 2023-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.