What is Tess O'Brien's NPI number?

Tess O'Brien's National Provider Identifier (NPI) is 1790572543, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Tess O'Brien's specialty?

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

Where is Tess O'Brien located?

Tess O'Brien's practice location on file with NPPES is 9 Pond Ln Ste 4d, Concord, MA 01742-2842.

What is Tess O'Brien's phone number?

The practice phone number listed in the NPPES registry for Tess O'Brien is (978) 369-0400.

Is Tess O'Brien's NPI active?

Yes — Tess O'Brien's NPI (1790572543) is active in the NPPES registry as of the last update on 2025-04-24.

IndividualActive

Tess O'Brien

NPI 1790572543 · Mental Health Counselor · Concord, MA

Tess O'Brien is a Mental Health Counselor provider in Concord, MA (NPI 1790572543).

Provider details

NPI number: 1790572543
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(48/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
1 yr 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

9 Pond Ln Ste 4d

Concord, MA 01742-2842

Phone: (978) 369-0400

Street-level locationGet directions

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Mailing address