What is Mark Dubbelman's NPI number?

Mark Dubbelman's National Provider Identifier (NPI) is 1588541973, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Dubbelman's specialty?

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

Where is Mark Dubbelman located?

Mark Dubbelman's practice location on file with NPPES is 21 Charles St Apt 322b, Cambridge, MA 02141-2369.

What is Mark Dubbelman's phone number?

The practice phone number listed in the NPPES registry for Mark Dubbelman is (617) 201-5994.

Is Mark Dubbelman's NPI active?

Yes — Mark Dubbelman's NPI (1588541973) is active in the NPPES registry as of the last update on 2025-08-19.

IndividualActive

Mark Dubbelman, PHD

NPI 1588541973 · Psychologist · Cambridge, MA

Mark Dubbelman, PHD is a Psychologist provider in Cambridge, MA (NPI 1588541973).

Provider details

NPI number: 1588541973
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PHD
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

PsychologistPrimary103T00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(48/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

21 Charles St Apt 322b

Cambridge, MA 02141-2369

Phone: (617) 201-5994

Street-level locationGet directions

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Mailing address