Dr. Carl Williams, PH.D.

Dr. Carl Williams is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Willimantic, CT, registered in the NPPES registry with NPI 1730403205 since 2010. The credential PHD stands for Doctor of Philosophy.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1730403205
Entity type	Individual (Type 1)
Name	Dr. Carl Williams
Credential	PH.D.
Sex	Male
Practice address	Willimantic, CT, 06226
Phone	8604563215
Fax	8604233351
Enumeration date	2010-03-26
Last updated in NPPES	2012-03-21

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YM0800X	Mental Health Counselor	Secondary	103-022	NJ
101YA0400X	Addiction (Substance Use Disorder) Counselor	Primary	000953	CT

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
37LC0013400	Other	NJ	ADDICTIONS PROFESSIONAL LICENSE NUMBER
103-022	Other	NJ	PSYCHOLOGY INTERN PERMIT NUMBER

Copy-ready billing details

Provider: Carl Williams, PH.D.
NPI: 1730403205
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: Willimantic, CT, 06226

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1356614812	Erin Parfitt	Individual	Mental Health Counselor	Willimantic, CT
1285909846	Terrence Smith	Individual	Addiction (Substance Use Disorder) Counselor	Willimantic, CT
1851667810	Amy Gilman	Individual	Mental Health Counselor	Willimantic, CT
1700134111	Sandra Gifford	Individual	Addiction (Substance Use Disorder) Counselor	Willimantic, CT
1326396441	Kelli Gustavson	Individual	Mental Health Counselor	Willimantic, CT
1851637342	Rebecca Hennessey	Individual	Marriage & Family Therapist	Willimantic, CT
1184960650	Lisa Heidtmann	Individual	Mental Health Counselor	Willimantic, CT
1619210317	Lindsay Kyle	Individual	Mental Health Counselor	Willimantic, CT

Verify this record

Cross-check NPI 1730403205 against the authoritative CMS record: view Dr. Carl Williams 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

Is NPI 1730403205 active?

Yes — as of the latest NPPES snapshot, NPI 1730403205 is active (record last updated 2012-03-21).

How do I verify Carl Williams's NPI record?

Cross-check NPI 1730403205 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-03-21.