What is David Tassell's NPI number?

David Tassell's National Provider Identifier (NPI) is 1306697503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is David Tassell's specialty?

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

Where is David Tassell located?

David Tassell's practice location on file with NPPES is 206 Washington St, Occoquan, VA 22125-7765.

What is David Tassell's phone number?

The practice phone number listed in the NPPES registry for David Tassell is (703) 493-0253.

Is David Tassell's NPI active?

Yes — David Tassell's NPI (1306697503) is active in the NPPES registry as of the last update on 2026-01-16.

IndividualActive

David Tassell

NPI 1306697503 · Social Worker · Occoquan, VA

David Tassell is a Social Worker provider in Occoquan, VA (NPI 1306697503).

Provider details

NPI number: 1306697503
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Social WorkerPrimary104100000X
Behavioral Health & Social Service Providers
Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Established profile(51/100 index)

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

Registry tenure38% of score
2 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

206 Washington St

Occoquan, VA 22125-7765

Phone: (703) 493-0253

Street-level locationGet directions

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Mailing address