Matthew Maddox, DDS
NPI 1639794266 · Dentist · Newbury Park, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Maddox, DDS is a Dentist provider in Newbury Park, CA (NPI 1639794266).
Provider details
- NPI number
- 1639794266
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 107036 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 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.
$111 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
- 2020-06-09
- Last updated
- 2023-07-27
- Certified
- 2023-07-26
Frequently asked questions
- What is Matthew Maddox's NPI number?
- Matthew Maddox's National Provider Identifier (NPI) is 1639794266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Maddox's specialty?
- Matthew Maddox is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Matthew Maddox located?
- Matthew Maddox's practice location on file with NPPES is 1000 Newbury Rd Ste 150, Newbury Park, CA 91320-6438.
- What is Matthew Maddox's phone number?
- The practice phone number listed in the NPPES registry for Matthew Maddox is (805) 498-3640.
- Does Matthew Maddox accept Medicare?
- Matthew Maddox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Maddox's NPI active?
- Yes — Matthew Maddox's NPI (1639794266) is active in the NPPES registry as of the last update on 2023-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.