What is Gary Gastman's NPI number?

Gary Gastman's National Provider Identifier (NPI) is 1689709032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gary Gastman's specialty?

Gary Gastman is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is Gary Gastman located?

Gary Gastman's practice location on file with NPPES is 35 Market St, Lowell, MA 01852-1805.

What is Gary Gastman's phone number?

The practice phone number listed in the NPPES registry for Gary Gastman is (978) 459-0389.

Is Gary Gastman's NPI active?

Yes — Gary Gastman's NPI (1689709032) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Gary Gastman, PH.D.

NPI 1689709032 · Clinical Psychologist · Lowell, MA

Gary Gastman, PH.D. is a Clinical Psychologist provider in Lowell, MA (NPI 1689709032).

Provider details

NPI number: 1689709032
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PH.D.
Sex: Male
Sole proprietor: No
License: 6954 (MA)

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense 6954 (MA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(89/100 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

35 Market St

2nd Floor

Lowell, MA 01852-1805

Phone: (978) 459-0389

Fax: (978) 459-7642

Street-level locationGet directions

More MA providers

Mailing address