Timothy G. Lock, PH.D.

Timothy G. Lock is a Psychologist provider (Psychologist) practicing in Brookfield, CT, registered in the NPPES registry with NPI 1720101686 since 2007. The credential PHD stands for Doctor of Philosophy.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1720101686
Entity type	Individual (Type 1)
Name	Timothy G. Lock
Credential	PH.D.
Sex	Male
Practice address	Brookfield, CT, 06804
Phone	2037753820
Fax	2037753820
Enumeration date	2007-04-07
Last updated in NPPES	2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103T00000X	Psychologist	Primary	002385	CT
103T00000X	Psychologist	Secondary	014926	NY

PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
060002385CT01	Other	CT	ANTHEM BLUE CROSS BLUE SH
P2534362	Other	CT	OXFORD HEALTH PLAN
250250	Other	CT	MHN HMC
2147508	Other	CT	CIGNA BEHAVIORAL HEALTH

Copy-ready billing details

Provider: Timothy Lock, PH.D.
NPI: 1720101686
Taxonomy: 103T00000X (Psychologist)
Address: Brookfield, CT, 06804

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1205837481	Steven Springer	Individual	General Practice Dentistry	Brookfield, CT
1043284151	George Lentini	Individual	Chiropractor	Brookfield, CT
1871520304	Sue Gostanian	Individual	Professional Counselor	Brookfield, CT
1639107642	Vicente Garcia	Individual	Pediatrics Physician	Brookfield, CT
1851321624	Claire Free	Individual	Pediatrics Physician	Brookfield, CT
1154423960	Joanne Marino	Individual	Professional Counselor	Brookfield, CT
1114023744	Marilyn Kain	Individual	Counselor	Brookfield, CT
1447356076	Cheryl Fusco	Individual	Psychiatric/Mental Health Nurse Practitioner	Brookfield, CT

Verify this record

Cross-check NPI 1720101686 against the authoritative CMS record: view Timothy G. Lock on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Timothy Lock?

Timothy Lock is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.