What is Thomas O'Brien's NPI number?

Thomas O'Brien's National Provider Identifier (NPI) is 1598883209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Thomas O'Brien's specialty?

Thomas O'Brien is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Thomas O'Brien located?

Thomas O'Brien's practice location on file with NPPES is 365 Ne Court St, Prineville, OR 97754-1936.

What is Thomas O'Brien's phone number?

The practice phone number listed in the NPPES registry for Thomas O'Brien is (541) 323-5330.

Is Thomas O'Brien's NPI active?

Yes — Thomas O'Brien's NPI (1598883209) is active in the NPPES registry as of the last update on 2012-05-22.

IndividualActive

Thomas O'Brien, M.S.W.

NPI 1598883209 · Mental Health Counselor · Prineville, OR

Thomas O'Brien, M.S.W. is a Mental Health Counselor provider in Prineville, OR (NPI 1598883209).

Provider details

NPI number: 1598883209
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Credential: M.S.W.
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(83/100 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
83% 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

365 Ne Court St

Prineville, OR 97754-1936

Phone: (541) 323-5330

Fax: (541) 447-6694

Street-level locationGet directions

More OR providers

Mailing address

274 Se 10th St

Madras, OR 97741-1617

Enumerated: 2007-03-27
Last updated: 2012-05-22

Frequently asked questions

What is Thomas O'Brien's NPI number?: Thomas O'Brien's National Provider Identifier (NPI) is 1598883209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Thomas O'Brien's specialty?: Thomas O'Brien is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
Where is Thomas O'Brien located?: Thomas O'Brien's practice location on file with NPPES is 365 Ne Court St, Prineville, OR 97754-1936.
What is Thomas O'Brien's phone number?: The practice phone number listed in the NPPES registry for Thomas O'Brien is (541) 323-5330.
Is Thomas O'Brien's NPI active?: Yes — Thomas O'Brien's NPI (1598883209) is active in the NPPES registry as of the last update on 2012-05-22.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.