What is John Mcmahon's NPI number?

John Mcmahon's National Provider Identifier (NPI) is 1003441304, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Mcmahon's specialty?

John Mcmahon is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).

Where is John Mcmahon located?

John Mcmahon's practice location on file with NPPES is 491 Kilvert St, Warwick, RI 02886-1370.

What is John Mcmahon's phone number?

The practice phone number listed in the NPPES registry for John Mcmahon is (401) 618-6991.

Is John Mcmahon's NPI active?

Yes — John Mcmahon's NPI (1003441304) is active in the NPPES registry as of the last update on 2026-04-02.

IndividualActive

John Mcmahon, BCBA, M.ED, B.S.

NPI 1003441304 · Behavior Analyst · Warwick, RI

John Mcmahon, BCBA, M.ED, B.S. is a Behavior Analyst provider in Warwick, RI (NPI 1003441304).

Provider details

NPI number: 1003441304
Entity type: Individual
Primary specialty: Behavior AnalystBehavioral Health & Social Service Providers
Credential: BCBA, M.ED, B.S.
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Behavior AnalystPrimary103K00000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(58/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
6 yrs in NPPES registry
Profile completeness38% of score
83% 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

491 Kilvert St

Warwick, RI 02886-1370

Phone: (401) 618-6991

Fax: (401) 618-6995

Street-level locationGet directions

More RI providers

Mailing address