What is David Oas's NPI number?

David Oas's National Provider Identifier (NPI) is 1427251727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is David Oas's specialty?

David Oas is listed in the NPPES registry with a primary specialty of Forensic Psychologist (Behavioral Health & Social Service Providers).

Where is David Oas located?

David Oas's practice location on file with NPPES is 508 Tucker St, Ashland, OR 97520-1582.

What is David Oas's phone number?

The practice phone number listed in the NPPES registry for David Oas is (541) 482-8506.

Is David Oas's NPI active?

Yes — David Oas's NPI (1427251727) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

David Oas, PH.D

NPI 1427251727 · Forensic Psychologist · Ashland, OR

David Oas, PH.D is a Forensic Psychologist provider in Ashland, OR (NPI 1427251727).

Provider details

NPI number: 1427251727
Entity type: Individual
Primary specialty: Forensic PsychologistBehavioral Health & Social Service Providers
Credential: PH.D
Sex: Male
Sole proprietor: Yes
License: 0237 (OR)

Practice location

508 Tucker St

Ashland, OR 97520-1582

Phone: (541) 482-8506

Fax: (541) 488-9373

Street-level locationGet directions

More OR providers

Mailing address

508 Tucker St

Ashland, OR 97520-1582

Specialties & taxonomies

Forensic PsychologistPrimary103TF0200XLicense 0237 (OR)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(90/100 index)

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.

Enumerated: 2007-06-06
Last updated: 2007-07-08

Frequently asked questions

What is David Oas's NPI number?: David Oas's National Provider Identifier (NPI) is 1427251727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is David Oas's specialty?: David Oas is listed in the NPPES registry with a primary specialty of Forensic Psychologist (Behavioral Health & Social Service Providers).
Where is David Oas located?: David Oas's practice location on file with NPPES is 508 Tucker St, Ashland, OR 97520-1582.
What is David Oas's phone number?: The practice phone number listed in the NPPES registry for David Oas is (541) 482-8506.
Is David Oas's NPI active?: Yes — David Oas's NPI (1427251727) 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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions