Dr. Jeffrey Warren Summerville, PSY.D., LCSW

Dr. Jeffrey Warren Summerville is a Clinical Social Worker provider (Social Worker) practicing in Hamden, CT, registered in the NPPES registry with NPI 1013926708 since 2006. The credential PSYD stands for Doctor of Psychology.

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NPI	1013926708
Entity type	Individual (Type 1)
Name	Dr. Jeffrey Warren Summerville
Credential	PSY.D., LCSW
Sex	Male
Practice address	295 WASHINGTON AVENUE, SUITE 9, Hamden, CT, 06518
Phone	2032878227
Fax	2032879502
Enumeration date	2006-08-05
Last updated in NPPES	2012-02-14

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1041C0700X	Clinical Social Worker	Primary	000823	CT

PSYD — Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
140000823CT01	Other	—	ANTHEM BCBS

Copy-ready billing details

Provider: Jeffrey Summerville, PSY.D., LCSW
NPI: 1013926708
Taxonomy: 1041C0700X (Clinical Social Worker)
Address: 295 WASHINGTON AVENUE, SUITE 9, Hamden, CT, 06518

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1528078441	Robert Koenig	Individual	Clinical Psychologist	Hamden, CT

Verify this record

Cross-check NPI 1013926708 against the authoritative CMS record: view Dr. Jeffrey Warren Summerville 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 is the NPI number for Jeffrey Summerville?

The National Provider Identifier (NPI) for Jeffrey Summerville is 1013926708, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jeffrey Summerville practice?

The practice location on file with NPPES is in Hamden, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-02-14.