IndividualActive
Tammi Hessen, MSW
NPI 1598990905 · Behavior Analyst · Lancaster, PA
Tammi Hessen, MSW is a Behavior Analyst provider in Lancaster, PA (NPI 1598990905).
Provider details
- NPI number
- 1598990905
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(79/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
302 West Orange Street
Lancaster, PA 17603-3749
Phone: (717) 392-8848
Fax: (717) 397-5290
Street-level locationGet directions
Mailing address
200 N 7th Street
Lebanon, PA 17046-5040
Registry dates
- Enumerated
- 2009-05-29
- Last updated
- 2009-05-29
Frequently asked questions
- What is Tammi Hessen's NPI number?
- Tammi Hessen's National Provider Identifier (NPI) is 1598990905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammi Hessen's specialty?
- Tammi Hessen is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Tammi Hessen located?
- Tammi Hessen's practice location on file with NPPES is 302 West Orange Street, Lancaster, PA 17603-3749.
- What is Tammi Hessen's phone number?
- The practice phone number listed in the NPPES registry for Tammi Hessen is (717) 392-8848.
- Is Tammi Hessen's NPI active?
- Yes — Tammi Hessen's NPI (1598990905) is active in the NPPES registry as of the last update on 2009-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.