Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Jeffrey Marston, TTS-C,MSPSY

Addiction (Substance Use Disorder) Counselor in Madison, ME · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1164808507

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Jeffrey Marston

Credential TTS-C,MSPSY

Sex Male

Practice address Madison, ME, 04950

Phone (207) 431-7377

Enumeration date Aug 8, 2015

Last updated in NPPES Aug 8, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License TTS-C (ME) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Jeffrey Marston practice?

The practice location on file with NPPES is in Madison, ME. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jeffrey Marston?

The National Provider Identifier (NPI) for Jeffrey Marston is 1164808507, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-08.