DONNA SAUNDERS PH.D.
NPI 1538296223
Psychologist in Ellicott City, MD

Active since February 28, 2007
4725 DORSEY HALL DR STE A317, ELLICOTT CITY, MD 21042(443) 274-7887(410) 970-6969 Get Directions Write a Review

NPPES record last updated: May 15, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 15, 2024, Mar 10, 2023, Feb 1, 2023 and 1 more (4 updates tracked since 2020).

About Donna Saunders Ph.d. NPPES

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

DONNA SAUNDERS PH.D. (NPI 1538296223) is a healthcare organization registered as a psychologist in Ellicott City, Maryland and active in the NPI registry since February 2007. The organization lists Donna Marie Saunders, President, as its authorized official.

NPPES Registry Identity

NPI1538296223
Entity TypeOrganization
Primary Taxonomy103T00000X
Legal Business NameGUIDE SERVICES INC
Location Address4725 DORSEY HALL DR STE A317Ellicott City, MD 21042-7713
Mailing Address4725 Dorsey Hall Dr Ste A317Ellicott City, MD 21042-7713 · (443) 274-7887
Fax(410) 970-6969
Organization SubpartNo
Authorized OfficialDonna Marie SaundersPresident · (410) 872-2990
Enumeration DateFebruary 28, 2007
Last NPPES UpdateMay 15, 20244 updates tracked since enumeration
NPPES CertifiedMay 15, 2024
✔ NPI 1538296223 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in MD · 03947
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
4725 DORSEY HALL DR STE A317, Ellicott City, MD 21042

Other Names 1

Doing Business AsDonna Saunders Ph.d.

Other Identifiers 2

Medicaid403843600MD
Other795471000MD · Clinical Psychologist

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Donna Saunders Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Donna Saunders Ph.D., which bills Medicare for the services this clinician delivers.

Clinician (1)

Clinical Psychologist
NPI 1265941900
5310 OLD COURT RD
Randallstown, MD 21133
(443) 850-0195
✔ PECOS8.8 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Guide Services Inc's NPI number?

The NPI number for Guide Services Inc is 1538296223. It was assigned to this organization in the NPPES registry on February 28, 2007. The provider is doing business as Donna Saunders Ph.D..

Where is Guide Services Inc located?

Guide Services Inc is located at 4725 Dorsey Hall Dr Ste A317, Ellicott City, MD 21042. The listed phone number is (443) 274-7887.

What is Guide Services Inc's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Guide Services Inc enrolled in Medicare?

Yes. Guide Services Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Guide Services Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Guide Services Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Guide Services Inc was last updated on May 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.