What is Mark Johnston's NPI number?

Mark Johnston's National Provider Identifier (NPI) is 1023026200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Johnston's specialty?

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

Where is Mark Johnston located?

Mark Johnston's practice location on file with NPPES is 607 Boylston St, Boston, MA 02116-3604.

What is Mark Johnston's phone number?

The practice phone number listed in the NPPES registry for Mark Johnston is (617) 266-2266.

Is Mark Johnston's NPI active?

Yes — Mark Johnston's NPI (1023026200) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Mark Johnston, PH.D.

NPI 1023026200 · Psychologist · Boston, MA

Mark Johnston, PH.D. is a Psychologist provider in Boston, MA (NPI 1023026200).

Provider details

NPI number: 1023026200
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PH.D.
Sex: Male
Sole proprietor: Yes
License: 7902 (MA)

Specialties & taxonomies

PsychologistPrimary103T00000XLicense 7902 (MA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(91/100 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

607 Boylston St

Rasi Associates - 2nd Floor

Boston, MA 02116-3604

Phone: (617) 266-2266

Fax: (617) 266-6070

Street-level locationGet directions

More MA providers

Mailing address