Larry Marx
NPI 1093850547 · Child & Adolescent Psychiatry Physician · Seattle, WA
Larry Marx is a Child & Adolescent Psychiatry Physician provider in Seattle, WA (NPI 1093850547).
Provider details
- NPI number
- 1093850547
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- MD00040853 (WA)
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
- 2007-02-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Larry Marx's NPI number?
- Larry Marx's National Provider Identifier (NPI) is 1093850547, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Marx's specialty?
- Larry Marx is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Larry Marx located?
- Larry Marx's practice location on file with NPPES is 1730 Minor Ave, Seattle, WA 98101-1498.
- What is Larry Marx's phone number?
- The practice phone number listed in the NPPES registry for Larry Marx is (206) 287-2500.
- Is Larry Marx's NPI active?
- Yes — Larry Marx's NPI (1093850547) 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.