ARIANNA MCLELLAN LCMHC
NPI 1649793605
Counselor - Addiction (Substance Use Disorder) in Portsmouth, NH

Active since July 21, 2017PECOS Enrolled
1145 SAGAMORE AVE, PORTSMOUTH, NH 03801(603) 431-6703(603) 430-3753 Get Directions Write a Review

NPPES record last updated: February 22, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 22, 2023, Jul 21, 2022, Jul 29, 2020 and 1 more (4 updates tracked since 2017).

About Arianna Mclellan Lcmhc NPPES

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

ARIANNA MCLELLAN LCMHC (NPI 1649793605) is an individual addiction (substance use disorder) provider in Portsmouth, New Hampshire, licensed in New Hampshire (1241) and active in the NPI registry since July 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649793605
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameARIANNA MCLELLANCredential: LCMHC
Location Address1145 SAGAMORE AVEPortsmouth, NH 03801-5503
Mailing Address1145 Sagamore AvePortsmouth, NH 03801-5503 · (603) 431-6703 · Fax (603) 430-3753
Fax(603) 430-3753
Sole ProprietorNo
Enumeration DateJuly 21, 2017
Last NPPES UpdateFebruary 22, 20234 updates tracked since enumeration
NPPES CertifiedFebruary 22, 2023
NPI 1649793605 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License Licensed in NH · 1241
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License 1263 (NH)
1145 SAGAMORE AVE, Portsmouth, NH 03801

Other Names 1

Former Name (1)Arianna Rothchild Lcmhc

Other Identifiers 2

Medicaid3078870NH
Medicaid3114836NH

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Arianna Mclellan Lcmhc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

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

Counselor (Mental Health)
1145 SAGAMORE AVE
PORTSMOUTH, NH 03801
Social Worker (Clinical)
1145 SAGAMORE AVE
PORTSMOUTH, NH 03801
Counselor
1145 SAGAMORE AVE
PORTSMOUTH, NH 03801
Counselor
1145 SAGAMORE AVE
PORTSMOUTH, NH 03801
Counselor
1145 SAGAMORE AVE
PORTSMOUTH, NH 03801
Clinic/Center (Mental Health (Including Community Mental Health Center))
1145 SAGAMORE AVE
PORTSMOUTH, NH 03801
Case Manager/Care Coordinator
1145 SAGAMORE AVE
PORTSMOUTH, NH 03801
Social Worker (Clinical)
1145 SAGAMORE AVE
PORTSMOUTH, NH 03801

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 Arianna Mclellan's NPI number?

The NPI number for Arianna Mclellan is 1649793605. It was assigned to this individual provider in the NPPES registry on July 21, 2017. The provider is also known as Arianna Rothchild Lcmhc.

Where is Arianna Mclellan located?

Arianna Mclellan practices at 1145 Sagamore Ave, Portsmouth, NH 03801. The listed phone number is (603) 431-6703.

What is Arianna Mclellan's specialty?

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

Is Arianna Mclellan enrolled in Medicare?

Yes. Arianna Mclellan is registered in the Medicare PECOS enrollment system.

What insurance does Arianna Mclellan accept?

Health plans from Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Arianna Mclellan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Arianna Mclellan was last updated on February 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.