Matthew Merliss, MD
NPI 1619061678 · Neurological Surgery Physician · Willows, CA
Matthew Merliss, MD is a Neurological Surgery Physician provider in Willows, CA (NPI 1619061678).
Provider details
- NPI number
- 1619061678
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G043655 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Matthew Merliss's NPI number?
- Matthew Merliss's National Provider Identifier (NPI) is 1619061678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Merliss's specialty?
- Matthew Merliss is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Merliss located?
- Matthew Merliss's practice location on file with NPPES is 1133 W Sycamore St, Willows, CA 95988-2601.
- What is Matthew Merliss's phone number?
- The practice phone number listed in the NPPES registry for Matthew Merliss is (530) 934-1831.
- Is Matthew Merliss's NPI active?
- Yes — Matthew Merliss's NPI (1619061678) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.