Gary Tennyson, PH.D., M.D.
NPI 1659404481 · Anatomic Pathology & Clinical Pathology Physician · Shelton, CT
Gary Tennyson, PH.D., M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Shelton, CT (NPI 1659404481).
Provider details
- NPI number
- 1659404481
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- PH.D., M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 040058 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-13
- Last updated
- 2009-01-13
Frequently asked questions
- What is Gary Tennyson's NPI number?
- Gary Tennyson's National Provider Identifier (NPI) is 1659404481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Tennyson's specialty?
- Gary Tennyson is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Tennyson located?
- Gary Tennyson's practice location on file with NPPES is 1 Forest Pkwy, Shelton, CT 06484-6147.
- What is Gary Tennyson's phone number?
- The practice phone number listed in the NPPES registry for Gary Tennyson is (203) 926-7143.
- Is Gary Tennyson's NPI active?
- Yes — Gary Tennyson's NPI (1659404481) is active in the NPPES registry as of the last update on 2009-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.