What is James Carleton Marston's NPI number?

James Carleton Marston's National Provider Identifier (NPI) is 1285985192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is James Carleton Marston's specialty?

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

Where is James Carleton Marston located?

James Carleton Marston's practice location on file with NPPES is 221 Old Concord Tpke Unit B, Barrington, NH 03825-5211.

What is James Carleton Marston's phone number?

The practice phone number listed in the NPPES registry for James Carleton Marston is (603) 742-9200.

Does James Carleton Marston accept Medicare?

James Carleton Marston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is James Carleton Marston's NPI active?

Yes — James Carleton Marston's NPI (1285985192) is active in the NPPES registry as of the last update on 2025-08-20.

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James Carleton Marston, MA, LCMHC

NPI 1285985192 · Mental Health Counselor · Barrington, NH

James Carleton Marston, MA, LCMHC is a Mental Health Counselor provider in Barrington, NH (NPI 1285985192).

Provider details

NPI number: 1285985192
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Credential: MA, LCMHC
Sex: Male
Sole proprietor: No

Practice location

221 Old Concord Tpke Unit B

Barrington, NH 03825-5211

Phone: (603) 742-9200

Fax: (603) 347-8417

Approximate (ZIP-level) locationGet directions

More NH providers

Mailing address

Po Box 1592

Raymond, NH 03077-3592

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800X
Behavioral Health & Social Service Providers

Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(73/100 index)

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

Registry tenure38% of score
14 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.

Enumerated: 2012-10-02
Last updated: 2025-08-20
Certified: 2025-08-20

Frequently asked questions

What is James Carleton Marston's NPI number?: James Carleton Marston's National Provider Identifier (NPI) is 1285985192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is James Carleton Marston's specialty?: James Carleton Marston is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
Where is James Carleton Marston located?: James Carleton Marston's practice location on file with NPPES is 221 Old Concord Tpke Unit B, Barrington, NH 03825-5211.
What is James Carleton Marston's phone number?: The practice phone number listed in the NPPES registry for James Carleton Marston is (603) 742-9200.
Does James Carleton Marston accept Medicare?: James Carleton Marston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is James Carleton Marston's NPI active?: Yes — James Carleton Marston's NPI (1285985192) is active in the NPPES registry as of the last update on 2025-08-20.

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

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions