Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ANN MARIE MASON LICDC-CS
NPI 1609305028
Counselor - Addiction (Substance Use Disorder) in Willoughby, OH

Q: What is Ann Mason's NPI number?

The NPI number for Ann Mason is 1609305028. It was assigned to this individual provider in the NPPES registry on June 8, 2017.

Q: What is Ann Mason's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ann Mason was last updated on October 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 days 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.

Active since June 08, 2017

38882 MENTOR AVENUE, WILLOUGHBY, OH 44094(440) 478-7845 Get Directions Write a Review

NPPES record last updated: October 25, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2022, Jun 8, 2017 (2 updates tracked since 2017).

On this page

About Ann Marie Mason Licdc-cs NPPES

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

ANN MARIE MASON LICDC-CS (NPI 1609305028) is an individual addiction (substance use disorder) provider in Willoughby, Ohio and active in the NPI registry since June 2017.

NPPES Registry Identity

NPI1609305028

Entity TypeIndividualFemale

Primary Taxonomy101YA0400X

Provider Legal NameANN MARIE MASONCredential: LICDC-CS

Location Address38882 MENTOR AVENUEWilloughby, OH 44094

Mailing Address38882 Mentor AveWilloughby, OH 44094-7875 · (440) 478-7845

Phone(440) 478-7845

Sole ProprietorYes

Enumeration DateJune 8, 2017

Last NPPES UpdateOctober 25, 20262 updates tracked since enumeration

✔ NPI 1609305028 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

38882 MENTOR AVENUE, Willoughby, OH 44094

Open in Google Maps ↗

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 Ann Mason's NPI number?

The NPI number for Ann Mason is 1609305028. It was assigned to this individual provider in the NPPES registry on June 8, 2017.

Where is Ann Mason located?

Ann Mason practices at 38882 Mentor Avenue, Willoughby, OH 44094. The listed phone number is (440) 478-7845.

What is Ann Mason'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 Ann Mason was last updated on October 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 days 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.