David Willis, MD
NPI 1598834533 · Developmental - Behavioral Pediatrics Physician · Portland, OR
David Willis, MD is a Developmental - Behavioral Pediatrics Physician provider in Portland, OR (NPI 1598834533).
Provider details
- NPI number
- 1598834533
- Entity type
- Individual
- Primary specialty
- Developmental - Behavioral Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD10960 (OR)
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
- 2006-11-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is David Willis's NPI number?
- David Willis's National Provider Identifier (NPI) is 1598834533, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Willis's specialty?
- David Willis is listed in the NPPES registry with a primary specialty of Developmental - Behavioral Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is David Willis located?
- David Willis's practice location on file with NPPES is 1675 Sw Marlow Ave, Portland, OR 97225-5104.
- What is David Willis's phone number?
- The practice phone number listed in the NPPES registry for David Willis is (503) 228-6479.
- Is David Willis's NPI active?
- Yes — David Willis's NPI (1598834533) 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.