What is William Kelly's NPI number?

William Kelly's National Provider Identifier (NPI) is 1851519441, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Kelly's specialty?

William Kelly is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is William Kelly located?

William Kelly's practice location on file with NPPES is 275 Millway, Barnstable, MA 02630-1102.

What is William Kelly's phone number?

The practice phone number listed in the NPPES registry for William Kelly is (860) 324-9720.

Is William Kelly's NPI active?

Yes — William Kelly's NPI (1851519441) is active in the NPPES registry as of the last update on 2010-03-09.

IndividualActive

William Kelly, M.A., LMHC, LADC1

NPI 1851519441 · Mental Health Counselor · Barnstable, MA

William Kelly, M.A., LMHC, LADC1 is a Mental Health Counselor provider in Barnstable, MA (NPI 1851519441).

Provider details

NPI number: 1851519441
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Credential: M.A., LMHC, LADC1
Sex: Male
Sole proprietor: No
License: 000668 (CT)

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800XLicense 7274 (MA)
Behavioral Health & Social Service Providers
Addiction (Substance Use Disorder) Counselor101YA0400XLicense 000668 (CT)
Behavioral Health & Social Service Providers
Marriage & Family Therapist106H00000XLicense 001149 (CT)
Behavioral Health & Social Service Providers
Professional Counselor101YP2500XLicense 001719 (CT)
Behavioral Health & Social Service Providers
Addiction (Substance Use Disorder) Counselor101YA0400XLicense 2304 (MA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(90/100 index)

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

275 Millway

Barnstable, MA 02630-1102

Phone: (860) 324-9720

Street-level locationGet directions

More MA providers

Mailing address

311 Village Grn N

Plymouth, MA 02360-7761

Enumerated: 2007-04-22
Last updated: 2010-03-09

Frequently asked questions

What is William Kelly's NPI number?: William Kelly's National Provider Identifier (NPI) is 1851519441, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is William Kelly's specialty?: William Kelly is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
Where is William Kelly located?: William Kelly's practice location on file with NPPES is 275 Millway, Barnstable, MA 02630-1102.
What is William Kelly's phone number?: The practice phone number listed in the NPPES registry for William Kelly is (860) 324-9720.
Is William Kelly's NPI active?: Yes — William Kelly's NPI (1851519441) is active in the NPPES registry as of the last update on 2010-03-09.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.