Dr. Mary Ruby, PH.D.

Dr. Mary Ruby is a Clinical Psychologist provider (Psychologist) practicing in Wellesley, MA, registered in the NPPES registry with NPI 1548372287 since 2006. The credential PHD stands for Doctor of Philosophy.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1548372287
Entity type	Individual (Type 1)
Name	Dr. Mary Ruby
Credential	PH.D.
Sex	Female
Practice address	Wellesley, MA, 02481
Phone	7812352052
Fax	4013053051
Enumeration date	2006-08-31
Last updated in NPPES	2010-07-06

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103TC0700X	Clinical Psychologist	Primary	1917	MA

PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Copy-ready billing details

Provider: Mary Ruby, PH.D.
NPI: 1548372287
Taxonomy: 103TC0700X (Clinical Psychologist)
Address: Wellesley, MA, 02481

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1760358113	Danielle Hopkins	Individual	Mental Health Counselor	Wellesley, MA

Verify this record

Cross-check NPI 1548372287 against the authoritative CMS record: view Dr. Mary Ruby on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mary Ruby?

Mary Ruby is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-07-06.