1. Home
  2. Directory
  3. New Hampshire
  4. Portsmouth
  5. Counselor
  6. NPI Profile

MARY YOST
NPI 1730748260
Counselor - Addiction (Substance Use Disorder) in Portsmouth, NH

Active since June 09, 2019
212 ISLINGTON ST, PORTSMOUTH, NH 03801(603) 387-2256 Get Directions Write a Review

NPPES record last updated: June 9, 2019. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mary Yost NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY YOST (NPI 1730748260) is a healthcare organization registered as an addiction (substance use disorder) in Portsmouth, New Hampshire and active in the NPI registry since June 2019. The organization lists Elizabeth Ann Carmer, Administrative Assistant, as its authorized official.

NPPES Registry Identity

NPI1730748260
Entity TypeOrganization
Primary Taxonomy101YA0400X
Legal Business NameMARY YOST
Location Address212 ISLINGTON STPortsmouth, NH 03801-4204
Mailing Address212 Islington StPortsmouth, NH 03801-4204 · (603) 387-2256
Phone(603) 387-2256
Organization SubpartNo
Authorized OfficialElizabeth Ann CarmerAdministrative Assistant · (603) 988-1015
Enumeration DateJune 9, 2019
✔ NPI 1730748260 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
212 ISLINGTON ST, Portsmouth, NH 03801
Open in Google Maps ↗

Other Identifiers 1

Medicaid3115107NH

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SEAPORT SUPPORT
Counselor (Mental Health)
212 ISLINGTON ST
PORTSMOUTH, NH 03801
Rockingham County (603) 387-2256

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Yost's NPI number?

The NPI number for Mary Yost is 1730748260. It was assigned to this organization in the NPPES registry on June 9, 2019.

Where is Mary Yost located?

Mary Yost is located at 212 Islington St, Portsmouth, NH 03801. The listed phone number is (603) 387-2256.

What is Mary Yost's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Mary Yost was last updated on June 9, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.